The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Correspondence and difference between gamma-ray and neutron irradiation effects on organic materials in marine environment
1
16
EN
Elsayed
K. Elmaghraby
Saad
Abdelaal
elaal11@yahoo.com
Abdelwahab
M. Abdelhady
Samar
Fares
sf.samar@yahoo.com
Safwat
Salama
topazgemss@gmail.com
Nassif
A. Mansour
10.21608/ejabf.2019.63408
This work is devoted to understand the difference between gamma ray effects and neutron influence on organic materials in order to interpret the change occurred in organic matter that coexists with nuclear tests in deep marine environment. A combination of Fourier-transform infrared spectroscopy (FTIR) and a simple statistical analysis was applied as a tool for the quantitative determination of changes in chemical properties due to radiation effects. The primary goal of this work was to statistically deduce, from correlations obtained between different band intensities, more information on the changes occurred. It did not aim only to investigate in detail the PolyAllyl Diglycol Carbonate (PADC) structure due to gamma and neutron irradiation impacts. The PADC samples obtained from Track Analysis System Ltd., UK of TASTRAK type were irradiated with gamma-ray dose in the range from (5±1)×10<sup>3</sup> Gy to (3.0±0.6)×10<sup>6</sup> Gy using <sup>60</sup>Co standard gamma cell of calibrated dose rate. While a high neutron fluence from ETRR-2 research reactor was applied for neutron irradiation process. The results showed a shift in absorption intensities for various bands due to either gamma or neutron irradiation. Such bands are the C=O, C=C and C-O-C. Moreover, formation of -OH radical was observed which indicating water content in the studied samples after irradiation. Such induced alterations were due to bond breakage of weak bonds such as, C-H, C-O, and C-C with different possibilities for gamma irradiation effects. While for neutron irradiation, atomic displacement in the material was the main reason for such changes. Furthermore, by applying a simple statistical analysis test, major infrared bands were integrated in order to make sense of, and draw correlations between each other to get more accurate and comparable results. The obtained results showed a good correlation between some bands, while the other didn’t. Also, the applied correlations simplified the comparison between gamma ray and neutron induced effects.
Marine life,environment,PADC polymer (CR-39),Neutron,Gamma rays,Physico-chemical analysis,FTIR Spectroscopy
https://ejabf.journals.ekb.eg/article_63408.html
https://ejabf.journals.ekb.eg/article_63408_e9dc6999706c00259648fafe285a0537.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Using Piper trilinear diagrams and principal component analysis to determine variation in hydrochemical faces and understand the evolution of groundwater in Sidi Slimane Region, Morocco
17
30
EN
Nabil
Darwesh
0000-0002-2629-5818
aboali3000@gmail.com
Mona
Allam
monaecri@yahoo.com
Qingyan
Meng
Al Aizari
Helfdhallah
0000-0003-2080-7955
alaizari2@gmail.com
Naser
Ramzy S. M.
Khadija
El Kharrim
k_elkharrim@hotmail.com
Ali
A. Al Maliki
malikia024@gmail.com
Driss
Belghyti
10.21608/ejabf.2019.63248
The water quality of groundwater is one of the most important issues for development and life societies. The chemical parameters of the groundwater play a significant role in classifying and assessing water quality. In this study, twenty samples were collected from different locations in a rural region to determine the hydrochemical facies characteristics and understand the evolution of groundwater quality in the Sidi Slimane area in Morocco. Piper trilinear diagram and principal component analysis (PCA) were used to find out the major contributing parameters involved in groundwater samples. The results showed that the analytical values obtained when plotted on Piper’s plots revealed that the alkalis (Sodium, Potassium), are significantly dominant over alkaline earth metals (Calcium, Magnesium) and the strong acidic anions (Chlorides, Sulfates) dominant over the weak acidic anions (Carbonates and Bicarbonates). Piper trilinear diagram classified 90 % of the samples from the study area under Na<sup>+</sup>- K<sup>+ </sup>- Cl<sup>-</sup> - SO<sub>4</sub><sup>2-</sup> type and only 10 % samples under Ca<sup>2+</sup>- Mg<sup>2+</sup>- Cl<sup>-</sup>-SO<sub>4</sub><sup>2-</sup> type. the Piper plots highlighted that the groundwater is dominant of Na–Cl type and the water types originating from halite dissolution (saline) in the study area. Also, correlation matrix showed that 95%, 100%, 65%, 75%, 65% and 55% of the examined groundwaters exhibit higher concentration of Sodium, Ammonium, Calcium, Electrical Conductivity EC, Chloride, and Nitrate respectively than the maximum acceptable limit of the Moroccan’s standards for drinking water. PCA suggests a significant mutual positive correlation between two main groups of parameters (EC, Ca<sup>2+</sup>, Mg<sup>2+</sup>, K<sup>+</sup>, Na<sup>+</sup>, HCO<sub>3</sub><sup>-</sup> and Cl<sup>-</sup>) and (pH, NH<sub>4</sub><sup>+</sup>, SO<sub>4</sub><sup>2-</sup>, and NO<sub>3</sub><sup>-</sup>). The output of PCA analysis is in confirmation with that of the Piper trilinear diagram and the correlation matrix to identify the characteristics of the samples and aid to comprehend their spatial distribution.
Groundwater quality,Piper trilinear diagram,Sidi Slimane,Correlation matrix,Morocco
https://ejabf.journals.ekb.eg/article_63248.html
https://ejabf.journals.ekb.eg/article_63248_9400e3c9af3b8498a2487454867d1acf.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Population Dynamic Parameters of the Comber Serranus Cabrilla (Teleostei, Serranidae) in Western Mediterranean (Eastern Coast of Algeria)
31
42
EN
Mounira
Rachedi
Amina
Tania Dahel
10.21608/ejabf.2019.64840
Some population parameters of the comber, <em>Serranus cabrilla,</em> were presented in this study. From January to December 2018, a total of 1250 samples of <em>Serranus cabrilla</em> (11 ≤ TL ≤ 23.9 cm, 14.34 ≤ TW ≤ 157.7 g), have been studied in the Gulf of Annaba (Eastern coasts of Algeria), based on length-frequency data. FiSAT II software was used for different analyses. The growth parameters of Von Bertalanffy are L<sub>∞</sub> = 24.94 cm, k = 0.38 year<sup>-1</sup> and to = -0.45 year, with a performance of growth (φʹ) of 2.37. The total (Z) and natural (M) mortality of comber in the Annaba gulf were equal to 1.41 and 0.81 year<sup>-1</sup> respectively, while the fishing mortality was estimated to 0.60. The exploitation rate is around 0.45 and indicates that the population of comber is lightly under exploited in the study area. The length at first capture (L<sub>c50</sub>) is equal to 12.04 cm.
Serranus cabrilla,growth parameters,mortality,exploitation rate,Mediterranean
https://ejabf.journals.ekb.eg/article_64840.html
https://ejabf.journals.ekb.eg/article_64840_04f5143bf2fb0eeba444366de3b85d0b.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Polychaetes from Suez Gulf (Gabel El Zeit), Egypt
43
53
EN
Faiza
Ali Abdelnaby
10.21608/ejabf.2019.62805
Samples were collected twice Autumn 2018 and Winter 2019, from nine stations were chosen to collect bottom fauna to cover the area of study around sewage pipeline of an oil company in Gable El Zeit, Gulf of Suez. The bottom fauna of the study area consist of 8 taxonomic groups of invertebrate. These groups are Foraminifera, Nematoda, Polychaeta, Bivalvia, Gastropoda, Cumacea, Isopoda and Amphipoda. Due to the importance of macro invertebrate in bio monitoring environmental studies. This study are considered as a step to study bottom fauna present in this area around the sewage Pipeline for an oil company in Gable El Zeit area, as an environmental assessment of this part, with focusing on the polychaete group. The results came out that the stations far away from the drainage pipe are better than nearby also results of some invertebrate groups such as foraminifera, mollusks, polychaetes answer all questions and detected which can used as biomarker of hydrocarbon contamination.
Oil pollution,Benthic fauna,Polychaetes,Gulf of Suez,Gable El Zeit,Egypt
https://ejabf.journals.ekb.eg/article_62805.html
https://ejabf.journals.ekb.eg/article_62805_953dae4e253e8f50e87886e6c9dc719c.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Assessment of Water and Sediment Quality of the River Nile, Damietta Branch, Egypt.
55
65
EN
Amany
F. Hasaballah
Talaat
A. Hegazy
Mahmoud
S. Ibrahim
Doaa
A. El-Emam
10.21608/ejabf.2019.64835
Water of Damietta Branch, River Nile is contaminated by different domestic and industrial wastes. It contains various inorganic, organic and biological pollutants which causes serious environmental impacts and significance. This study performed to assess the pollution degree in Damietta Branch - River Nile. Twelve different sampling points were selected along the study area, River Nile Damietta branch from its spring at Cairo to its estuaries at Ras ELbar-Damietta. The results revealed that Dissolved Oxygen concentrations in river water ranged from 2.7 to 9.2 mg/l; BOD values were in the range of 10.5 to 40.6 mg/l, whereas Chemical Oxygen Demand ranged from 30.6 to 92 mg/l. Total nitrogen ranged from 0.125 to 1.4 mg/l. Total phosphorus ranged from 1.1 to 2.8 mg/l. Also, a high concentration of dissolved and suspended salts as total salts ranged from 38.49 to 93.04 mg/l. These results also confirmed with sediment analysis. The concentrations of heavy metals in sediment samples, followed the order Fe> Zn> Pb> Co> Ni> Cu> Mg, while, in the water samples it followed the order Pb> Fe> Cu> Co> Cd> Ni. Through the results of water quality index (WQI) based on 10 critical parameters (pH, Temperature, DO, BOD, COD, TP, TN, Turbidity, TS and Salinity), it indicated that site 5 (Eladlia WQI= 49), site 8 (Bosat Kareem Eldein WQI=47), site 9 (Talkha WQI=45) and site 10 (Smnood WQI=45) were more polluted than the other sites along the river branch. Overall, the results of WQI indicated that the Nile water quality of the studied area classified as medium quality (WQI average 55). The concentrations of Fe, Zn and Cu in water samples were within the safe limits of Egyptian standard regularities of article 60 law No. 48/1982. By contrast, the concentrations of Cd and Pb in water samples were above safe limits
Water assessment,Sediment Quality,pollution,River Nile,Damietta Branch,Heavy metals,chemical parameters
https://ejabf.journals.ekb.eg/article_64835.html
https://ejabf.journals.ekb.eg/article_64835_f231e38d8d835739e3c183fb5f47bd9d.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Molecular Phylogenetic Linkage for Nile and Marine Puffer Fishes Using Mitochondrial DNA sequences of Cytochrome b and 16S rRNA
67
80
EN
Zeinab
A. Mar'ie
Mohammad
Allam
0000-0001-8639-196X
mohammad_allam10@sci.svu.edu.eg
10.21608/ejabf.2019.63606
Based on two mitochondrial DNA sequences; cytochrome b and 16S rRNA with using a total DNA template from muscle tissues of two puffer fishes species <em>Arothron hispidus</em> and <em>Tetraodon lineatus</em>, our study was performed to reveal a general view about the phylogenetic linkages among River Nile <em>Tetraodon lineatus</em> and Red Sea <em>Arothron hispidus</em> to other marine puffer fishes. The nucleated sequence lengths based on cytochrome b gene in <em>Arothron hispidus</em> and <em>Tetraodon lineatus</em> were (337 and 367 bp. respectively), while using the 16S gene in <em>Arothron hispidus</em> and <em>Tetraodon lineatus</em> revealed nucleated sequence of length (186 and 237 bp. respectively). The sequenced regions of cytochrome b in <em>Arothron hispidus</em> and <em>Tetraodon lineatus</em> were submitted in the GenBank/NCBI under accession numbers MN186251 and MN186252 respectively, also the sequenced regions of 16S in <em>Arothron hispidus</em> and <em>Tetraodon lineatus</em> were submitted in the GenBank/NCBI under accession numbers MN186287 and MN175976 respectively. The phylogenetic linkages were designed using three phylogenetic methods; Maximum Likelihood (ML), Neighbour Joining (NJ) and Minimum Evolution (ME). The Pairwise genetic distances of both (cyt-b) and (16S) illustrated that, the Nile puffer fish<em> Tetraodon lineatus</em> was closely related to marine puffer fishesof genera <em>Arothron </em>and <em>Canthigaster</em> more than other marine puffer fish genera. Our results showed high efficiency of cyt-b and 16S rRNA in the phylogenetic analysis, so we strongly support the usefulness of them for taxonomy studies of puffer fishes.
Tetraodon lineatus,Arothron hispidus,Molecular Phylogenetic,cytochrome b,16S rRNA
https://ejabf.journals.ekb.eg/article_63606.html
https://ejabf.journals.ekb.eg/article_63606_558705752c9f883bce00ba0223645e47.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Monitoring water quality and plankton distribution in the River Nile around El-Maadi area in Egypt during 2018
81
87
EN
Sayed
Rashad
sayed_rashad79@hotmail.com
Muhammad
Abdul Moneem
Ghadir
A. El-Chaghaby
Shereen
F. Abdel-Kader
10.21608/ejabf.2019.63621
In the present study, water quality parameters and planktons distribution were monitored monthly during the year 2018 within a segment of the Nile around El-Maadi area in Cairo, Egypt. The results indicated a temperature variation ranging from 16.8°C in January to 29.4°C in July. The pH of water recorded a value around 8.2 all over the study period. Total dissolved solids were highest in January (346.5mg/l) whereas, the lowest value was obtained in July (240.3mg/l). The water electric conductivity ranged from 528 to 365 µS/cm. Very little variations were noticed for ammonia, nitrite and nitrate concentrations with maximum values in November being 0.40, 0.06 and 0.605 mg/l, respectively. The calcium concentrations ranged from 27.0 to 37.2 mg/l, magnesium concentrations were in the range from 10.32 to 16.4 mg/l, whereas iron concentrations varied from 0.09 to 0.325 mg/l and manganese concentrations range was 0.0001 to 0.192 mg/l. The results indicated that the total algae count was highest during winter season followed by autumn then spring and summer. The results showed that during winter season the count of blue green algae was maximum (385 cell/ml) and also the number of diatoms was highest in winter. Pearson’s correlation analysis revealed positive correlation for the total number of algae and turbidity, total dissolved solids (TDS), electroconductivity (EC) and calcium (Ca) in water. Whereas, there was a strong negative correlation for the total algae count and water temperature.
River Nile,El-Maadi,algae,diatoms,Plankton,Egypt
https://ejabf.journals.ekb.eg/article_63621.html
https://ejabf.journals.ekb.eg/article_63621_1140abc64ec76a455f15a17c9e94dcd7.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Mesozooplankton in a stressed area of the Nile Delta Coast, Egypt.
89
105
EN
Mohamed
Dorgham
Wael
El-Tohamy
waeleltohamy5@gmail.com
Jian
Qin
Nagwa
Abdel-Aziz
Ahmed
El-Ghobashy
10.21608/ejabf.2019.63238
The mesozooplankton was studied biweekly for one year in a part of the Nile Delta coast laying under the stress of different human activities. The study recorded 59 species amounted totally to an average of 59.7 x10<sup>3</sup> orgm/m<sup>3</sup>. Copepods were the highest diverse group (25 species), constituting 86.4% of the total mesozooplankton count. The other holoplankton groups were poorly represented and collectively formed 5% in addition to 8.6% for meroplankton. The community structure and numerical abundance experienced pronounced spatial and temporal variations relative to the surrounding environmental conditions. The Shannon index and dominance index were low over the whole area, while the evenness index appeared high. Salinity seems to be the essential factor that controls the distribution of the different groups, but other environmental parameters were also encountered. The nauplii larvae of copepods were the major mesozooplankton component, while a few species displayed clear abundance and were responsible for the abundance of the adult forms.
Damietta coast,Mesozooplankton,holoplankton,Nile Delta,Terrestrial stress,Community structure
https://ejabf.journals.ekb.eg/article_63238.html
https://ejabf.journals.ekb.eg/article_63238_64a7e1f1f1ed480635c4f87491186763.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Pentoxifylline and/or praziquantel reduce murine schistosomiasis mansoni histopathology via amelioration of liver functions
121
133
EN
Amina
Ibrahim
aminamd.ibrahim@yahoo.com
Heba
Abdel-Tawab
Taghreed
Hussein
taghreedmohamed@gmail.com
10.21608/ejabf.2019.67229
Murine schistosomiasis represented a good lab model of granulomatous hypersensitivity reaction which could be elicited by <em>S. mansoni</em> eggs trapped in the host tissues which might lead to liver fibrosis. Pentoxifylline (PTX) is an immunomodulatory and antifibrotic substance. The present investigation aimed to study the action of PTX (4 weeks post infection) either alone or combined with PZQ (7 wk PI) on fibrosis developed from murine hepatic schistosomal granulomatous reaction. The experiments were carried out on naïve C75BL/6 mice that were divided into three groups. Two control groups were used one without infection (normal) and the other was infected without treatment. Mice were sacrificed 12 weeks post infection.
PTX treatment alone caused a partial toxic effect on worm burden; egg count; and ameliorated the liver functions. But, it increased immature and dead eggs, while it decreased the mature ones. PZQ administration alone or in combination with PTX showed a highly significant reduction in worm burden, egg count, disappearance of immature egg stage and a high increase in dead eggs. Also, it caused a highly significant reduction in granuloma count, diameter and ameliorated liver functions.
In conclusion,according to the parasitological, histopathological and biochemical criteria of the present study, PTX can be successfully introduced into antischistosomal therapy as a potent antifibrotic agent with immunomodulatory properties in combination with PZQ.
Schistosoma mansoni,Pentoxifylline,praziquantel,PTX treatment,Antifibrotic substance,immunomodulatory
https://ejabf.journals.ekb.eg/article_67229.html
https://ejabf.journals.ekb.eg/article_67229_6efdd537034adbeb1bd0948f2c271739.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Recycling of Al (III) from Solid Waste as Alum and Alum Derivatives and their Applications in Water and Waste water Treatment
135
146
EN
F. M.
Mohamed
A. M.
Kamal
K.A.
Alfalous
10.21608/ejabf.2019.63937
To avoid the water resource pollution, this study attentively of preparation, characterization of leached Alum (LA), poly aluminum hydroxy sulphate (PAlHS<sup>TM</sup>) and poly aluminum hydroxy sulphate silicate (PAlHSSi<sup>TM</sup>), which prepared from activated silica derived from rice husk ash and Alum derived from solid waste resulted from surface water purification plant, as well as applications of these new materials in water and waste water treatment. Representative samples of solid waste were collected the solid wastes of surface water purification station. The factors affecting the output of leached (Alum) Aluminum sulphate (Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>.X H<sub>2</sub>O as (Al<sub>2</sub>O<sub>3</sub>) such as the sulphuric acid concentration percentage, pH, flux rate of H<sub>2</sub>SO<sub>4</sub>, and contact time were studied. The obtained Alum is converted to PAlHS<sup>TM</sup> and PAlHSSi<sup>TM</sup> which characterized using FTIR, XRD and SEM, then the two new materials were applied in sewage water treatment. The empirical outcome implied that there are no considerable deviations of dissolved ions in water specification that treated either with PAlHS<sup>TM</sup> or PAlHSSi<sup>TM</sup>. Both of them conform to international guidelines. Whereas the elimination proportion of the main sewage water pollutants: total suspended solids (TSS), chemical oxygen demand (COD) and biological oxygen demand (BOD) reached 96, 89, and 90%, respectively using PAlHS<sup>TM</sup>, while the elimination proportion of the last main sewage water pollutants reached 97, 91, and 92%, respectively using PAlHSSi<sup>TM</sup>. conclusively, the prepared PAlHS<sup>TM</sup> and PAlHSSi<sup>TM </sup> and from solid waste of water purification plant should be used as a minimal cost of commercial coagulant in sewage water treatment for its quality in coagulation beside its uses in an environmental impact reducer.
Solid waste,recycling,pollution,Alum,polyhydroxy aluminum,Sewage water treatment
https://ejabf.journals.ekb.eg/article_63937.html
https://ejabf.journals.ekb.eg/article_63937_66d9bda5e052fc938f7fccba83f5a942.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
29
Revision of Superfamily Pilumnoidea from the Egyptian Red Sea coasts, Gulfs of Aqaba and Suez, Egypt
137
166
EN
Awaad
A. M. El-Sayed
Abdullah
M. Abd-ElKhalek
Mohamed
A. Amer
Mostafa
H. Sarhan
10.21608/ejabf.2019.62493
A total of 10 species of superfamily Pilumnoidea belong to families Galenidae and Pilumnidae, distributed within 6 genera were recorded from the coasts of the Red Sea, Gulfs of Suez and Aqaba, in addition to Suez Canal Lakes. <em>Halimede tyche </em>was the only species belong to family Galenidae, while family Pilumnidae was represented by 9 species within five genera comprised <em>Actumnus asper, Cryptopilumnus pereiodontus, Pilumnopeus convexus, Pilumnus incanus, P. longicornis, P. minutus, P. propinquus, P. vespertilio</em> and <em>Tiaramedon spinosum</em>. Genus <em>Pilumnus</em> was the dominant and represented by 5 species amounting 50 % of the all recorded species. <em>Cryptopilumnus pereiodontus </em>is recorded for first time from the Egyptian waters and the entire Red Sea. A brief description and notes on size, localities, color and habitats and distribution were given. Constructed keys for identification were also provided.
Pilumnidae,Galenidae,feather crab,hairy crabs,Red Sea,Egypt
https://ejabf.journals.ekb.eg/article_62493.html
https://ejabf.journals.ekb.eg/article_62493_29e032a6752f044000445275584ddb56.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Ocean acidification impact on the grooved carpet shell clam (Ruditapes decussatus)
169
182
EN
Merna
E. Awad
Nayrah
A. Shaltout
Fedekar
F. Madkour
Mohamed
A. Abu El-Regal
Heba
S. El-Sayed
Eman
El-Wazzan
10.21608/ejabf.2019.63255
The grooved carpet shell clam (<em>Ruditapes decussatus</em>) is one of the most economicallyimportant mollusks inhabiting Mediterranean lagoons and sandy beaches both from fisheries and aquaculture. The present study aims to study the impact of different levels of acidification on this calcifying organism. Juvenile clams (avg. Shell Length, SL= 23.22 ± 0.84 mm) were incubated in CO<sub>2</sub> enriched seawater at four different CO<sub>2</sub> concentrations [420 ppm (ambient control), 550 ppm, 750 ppm and 1050 ppm] representing projected atmospheric CO<sub>2</sub> concentration scenarios for the year 2100 by IPCC. The studied biological parameters showed slight decrease with increasing pCO<sub>2</sub>. However, differences were not significant. Standard length decreased as pCO<sub>2</sub> concentration increased, with a maximum average decrease of (-0.12) recorded at 750 ppm as compared to the control group. Regarding total weight, the decrease was highest (-0.10) in both 550 and 1050 ppm. Moreover, clams kept at 550 ppm showed the lowest condition index (11.40 ± 1.49) and highest mortality rate of 8%. The study of physiological response showed increase in metabolic rate and ammonia excretion in both 550 ppm and the control 420 ppm groups. Algal feed clearance rate decreased with increasing acidification with highest value in the control (420 ppm) group and lowest average value of 3.34 l/h<sup>-1</sup>in the extremely high pCO<sub>2</sub> (1050 ppm) group. By the end of century, ocean acidification may exert additional stress on the health of <em>R. decussatus </em>and its economic value.
Ocean acidification,grooved carpet clam,Ruditapes decussatus,Calcifying organism,Biological impact,mortality
https://ejabf.journals.ekb.eg/article_63255.html
https://ejabf.journals.ekb.eg/article_63255_83d605b7c5d6d0b3503dd557dd5aec98.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Cadmium Toxicity-Induced Oxidative Stress and Genotoxic Effects on Nile tilapia (Oreochromis niloticus L.) Fish: The Protective Role of Fenugreek (Trigonella foenum-graecum) Seeds
193
215
EN
Wafaa
T. Abbas
Mohammad
M. N. Authman
Doaa
A. Darwish
Amany
M. Kenawy
Iman
M.K. Abumourad
Taghreed
B. Ibrahim
10.21608/ejabf.2019.64715
The present work was designed to study the alleviation influence of fenugreek (<em>Trigonella foenum-graecum</em><strong>) </strong>on Nile tilapia (<em>Oreochromis niloticus</em> L.) experimentally exposed to Cd toxicity. A total of 400 fish were randomly divided into 10 groups (G1-G10) and fish was exposed to sub-lethal dose of Cd and fed on fenugreek seeds (crude or extract), individually or in combination for 45 days. The results showed that Cd exposure increased significantly the serum total protein, albumin, globulin, alanine aminotransferase (ALT), glucose and cholesterol, whereas aspartate aminotransferase (AST) and uric acid were significantly decreased. Also, hepatic protein content, catalase (CAT), superoxidase dismutase (SOD) and glutathione-S-transferase (GST) increased significantly due to Cd exposure. Additionally, Cd induced significantly metallothionein-gene (<em>MT</em>) expre-ssion and increased Cd concentrations in different fish tissues. Feeding on fenugreek extract 1% and 3% has reduced some Cd-induced biochemical and antioxidant alterations; however, it decreased ALT, AST and uric acid in serum and also reduced CAT and SOD activities. Fenugreek extract induced <em>MT</em> up-regulation and decreased Cd accumulation in some fish tissues. Although, feeding on fenugreek extract with Cd exposure somewhat reduced the histopathological changes compared to Cd-exposed group, some pathological changes were observed in fenugreek-fed groups especially in high concentrations. It could be concluded that fenugreek seeds extract at level of 1% could be used as feed supplement to Nile tilapia to alleviate some toxic effects of Cd and reduction of Cd accumulation in fish tissues (especially muscle) in such a way to help fish in facing Cd toxicity and reducing the public health hazard.
Fenugreek seeds,Cadmium toxicity,Oreochromis niloticus,biochemical,antioxidants,histopathology
https://ejabf.journals.ekb.eg/article_64715.html
https://ejabf.journals.ekb.eg/article_64715_6c1bb4fb0b492ee70793bd5bfef1f159.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
A sustainable bioelectricity production from wastewater
225
233
EN
Dalia
El S. El-Badan
Marium
A. Khaled
Khaled
M. Ghanem
10.21608/ejabf.2019.65179
This study investigated the parameters affecting the performance of a 1000 mL dual-chamber MFC. A microbial fuel cell (MFC) reactor with two compartments has been constructed from cheap materials and used for electricity generation. The maximum power densities of 99.15 mW/m<sup>2</sup>, 160.68 mW/m<sup>2</sup>, 191 mW/m<sup>2</sup>, and 204 mW/m<sup>2</sup> were obtained when aluminum electrode was used, the concentration of KCl in salt bridge was 6%, sodium acetate was used as a sole carbon source, and methylene blue used as a mediator; respectively.Changing the electrode materials, salt concentrations in the salt bridge, using different carbon sources and different mediators; had a great influence on electricity production from wastewaters using MFC<strong>. </strong>Microbial Fuel Cells (MFCs) offer the possibility of extracting electric current from a wide range of soluble or dissolved complex organic wastes and renewable biomass.
Microbial fuel cell,MFC,Wastewater,Electricity generation,Mediators
https://ejabf.journals.ekb.eg/article_65179.html
https://ejabf.journals.ekb.eg/article_65179_5a720e0bb31bc92e2a3f94a73380a710.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
25
Catalog of Syllidae (Polychaeta) with reference to what was published in the Red Sea and Suez Canal, Egypt
235
251
EN
Faiza
Ali Abd- Elnaby
10.21608/ejabf.2019.66153
Thirty-six Syllid species were identified in the Petro Gulf Misr Project (2017, 2018, 2019). 58 sediment samples were collected from the Suez Gulf (Gable El Zeit Area). The data revealed that 36 syllidae species were recorded; 19 of them are considered new recorded species reported for the first time during the present study (Species with*). Of these species, 13 of them were previously reported in the Suez Canal. This research is considered a new addition to the monitoring work of polychaetes in the Gulf of Suez, supplied by data and distribution of Syllidae species in the Suez Canal, Red Sea and Suez Gulf region. Adding notes of description for some.
Polychaetes,family Syllidae,Suez Gulf,Suez Canal,Red Sea
https://ejabf.journals.ekb.eg/article_66153.html
https://ejabf.journals.ekb.eg/article_66153_8db8045ba1c91aa907cfe81e80948a14.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
23
Heavy metals bioaccumulations in Chrysichthys nigrodigitatus (Silver catfish) from River Oli, Kainji Lake National Park, Nigeria
253
259
EN
Kehinde
M. Adelakun
Abiodun
S. Kehinde
10.21608/ejabf.2019.66652
Heavy metals have become a public health problem worldwide in recent years due to their potential toxic effect and ability to bio-accumulate in aquatic ecosystems. Therefore, this study examined heavy metals bioaccumulation in <em>Chrysichthys nigrodigitatus </em>from River Oli, Kainji Lake National Park. The concentrations of Pb, Cd, Fe, Cr, Zn and Cu in fish body part samples (mg/kg) were determined with AAnalyst 200 model of Atomic Absorption Spectrophotometer (AAS).
The results showed that there were significant variations in heavy metals concentration across fish muscles, vertebral bone and gills. The level of Fe accumulation is significantly varied in all fish body parts where muscles accumulated most (218.33±7.50) while gills had least (185.33±19.50). Concentration of Pb was significantly higher in muscles (6.55±0.51) and lower in gills and vertebral bones (5.71±0.07 and 0.66±0.10, respectively). Concentration of Cd showed no significant difference in all samples and its bioaccumulation in fish parts was relatively low. In muscles, the bioaccumulation profile was Fe>Cu>Zn>Pb>Cr>Cd. While in gills, the profile was Fe>Zn>Cu>Pb>Cr>Cd and it was Fe>Zn>Cu>Cr>Pb >Cd in vertebral bones.
Results showed that fish accumulated essential metals in their muscles with higher levels than non-essential metals. However, considering the importance of this species to food security and ecological stability of the study area, the level of Pb and Fe accumulation in various fish parts are of great concern because both elements exceed the WHO minimum permissible limits of 2 mg/kg and 100 mg/kg for Pb and Fe respectively in food and food products.
Chrysichthys Fish,Silver catfish,Heavy metals,Kainji Lake,River Oli,bioaccumulation
https://ejabf.journals.ekb.eg/article_66652.html
https://ejabf.journals.ekb.eg/article_66652_566c568c98be957a8861e23725905970.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
23
Antibacterial activity of silver nanoparticles biosynthesized using Spirulina platensis microalgae extract against oral pathogens
261
266
EN
Sayed
Rashad
sayed_rashad79@hotmail.com
Ghadir
A. El-Chaghaby
Marwa
A. Elchaghaby
10.21608/ejabf.2019.65907
In the present investigation, <em>Spirulina platensis</em> extract was used for biosynthesis of silver nanoparticles (AgNPs) and the antibacterial activity of the biosynthesized nanoparticles against oral pathogens was assessed. The biosynthesis of AgNPs was successfully achieved using 0.5 ml of <em>Spirulina</em> extract and 50 ml of silver nitrate (1mM) after 5 minutes of heating at 50°C.
The formation of AgNPs was confirmed using UV- Visible spectropho-tometer by the appearance of typical plasmon resonance band of AgNPs at 425nm. The average particle size of the biosynthesized AgNPs was 25.56 nm. Three Gram positive oral bacteria were used to investigate the antibacterial activity of biosynthesized silver nanoparticles. These bacteria were <em>Streptococcus mutans, Staphylococcus aureus </em>and <em>Enterococcus faecalis</em>. The antibacterial activity was studied by determining the inhibition zone diameter using the disc diffusion method. The results showed that the AgNPs biosynthesized using <em>Spirulina </em>extract have good antibacterial activity against the three tested bacteria. The inhibition zone diameters were 12 mm, 12 mm and 13 mm for <em>Streptococcus mutans, Staphylococcus aureus </em>and <em>Enterococcus faecalis</em>, respectively. In conclusion, AgNPs biosynthesized using <em>Spirulina platensis</em> extract could be employed as antibacterial materials in dentistry. Further work could be addressed towards the optimization of the preparation conditions and controlling the size of nanoparticles.
silver,Nanoparticles,oral bacteria,Spirulina platensis,Streptococcus mutans,Staphylococcus aureus,Enterococcus faecalis
https://ejabf.journals.ekb.eg/article_65907.html
https://ejabf.journals.ekb.eg/article_65907_8fca91dc6e684c11865f54f8bdd9e230.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Effect of Water Bodies Lining on the Efficacy of Molluscicides Against Biomphalaria alexandrina Snails with Emphasis to their Integrated Control Measures
267
283
EN
Nahed
M. Ismail
Mohamed
N. Sedek
Khalil
M. El-Said
Azza
M. A. Marai
10.21608/ejabf.2019.66051
The effect of lining snails'aquaria with different materials on efficacy of the molluscicides niclosamide and copper sulphate on <em>Biomphalaria alexandrina </em>snails under laboratory and semi-field conditions was studied. Under laboratory conditions, the survival rate of <em>B. alexandrina</em> kept in aquaria lined with cement or plastic sheets and exposed to the sub-lethal concentration(LC<sub>50</sub>) of niclosamide showed a highly significant reduction (<em>p</em><0.001) represented by 5% and 0.0, respectively comparing with those in mud and control<sub>1</sub> (50% and 40%, respectively). Similarly, snails kept in aquaria with substratum of cement or plastic and exposed to copper sulphate (LC<sub>50</sub>) showed 100% mortality compared to those with muddy substratum and control<sub>1</sub> (65% and 50%, respectively). The Semi-field experiment showed 100% and 96% snails mortality in canals lined with cement or plastic, respectively after exposing to copper sulphate (LC<sub>25</sub>) compared to 38% for snails in muddy canal. The mortality of control snails (snails without molluscicide) was recorded as 2%, 52% and 48% in canals with mud, cement and plastic, respectively. By using the sublethal concentration (LC<sub>25</sub>) of the niclosamide, there was a highly significant increase in snails mortality in both of canals lined with cement and plastic (100%) compared to 40% in snails maintained in muddy canals (p<0.001). A highly significant reduction (p<0.001) was recorded in the survival rate of <em>B. alexandrina </em>kept with the competitor snails <em>Helisoma duryi </em>in both of the aquaria with mud and control<sub>1</sub> groups either in the case of free snails (40% and 53.3%, respectively) or those in cages (53.3% and 46.7%, respectively) compared to those of <em>H. duryi</em> (80% and73.3% for free snails and those in cages, respectively). The same pattern was observed in the semi-field experiment. Laboratory study on the role of lining on the integrated control of snails maintained in mud substratum with the competitor snails and molluscicide indicated that there was a highly significant reduction (p<0.001) in snails mortalityrepresented by 55% in case of both of the two molluscicides compared to those snails exposed in the presence of lining materials cement and plastic (92.5% and 100%., respectively). In addition, 100% mortality of <em>B. alexandrina</em> snails was observed after exposing to the molluscicide copper sulphate and <em>H. duryi</em> snails in both of the canals lined with cement and plastic compared to snails maintained in muddy canals (68%). From the view of snail integrated control measures, it could be concluded that lining of canals with cement or plastic sheets improve and increase the efficacy of the molluscicides and the bio-control agents (snail competitors) against snail borne parasitic diseases.
Lining water courses,B.alexandrina,molluscicides,Control measures,Copper sulphate,Helisoma duryi,Niclosamide
https://ejabf.journals.ekb.eg/article_66051.html
https://ejabf.journals.ekb.eg/article_66051_febce675531e7ce80df4351fbe89cec7.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Sargassum latifolium as eco-friendly materials for treatment of toxic nickel (II) and lead (II) ions from aqueous solution
285
299
EN
Ahmed
E. Al prol
Mohamed
E. A. El-Metwally
Adel
Amer
aaregal@gmail.com
10.21608/ejabf.2019.66839
<span lang="EN-GB">The current study was undertaken to estimate the effectiveness of the brown algae <em>Sargassum latifolium </em>in removal of </span><span>Ni<sup>2+</sup> and Pb<sup>2+</sup> </span><span lang="EN-GB">ions from metal solution by adsorption</span><span> as alternative low-cost adsorbents</span><span lang="EN-GB">. Laboratory batch examination was conducted to</span><span> estimate the influence of </span><span>contact time, pH, initial </span><span>Ni<sup>2+</sup> and Pb<sup>2+</sup> </span><span>ions concentration, temperature and adsorbent dose on adsorption efficiency. </span><span>The highest </span><span lang="EN-GB">metal</span><span> removal was obtained</span><span lang="EN-GB"> under condition of</span><span> pH 7&6, temperature 25 & 30<sup> o</sup>C</span><span> <span lang="EN-GB">, contact time of 5 & 60 min for Ni</span></span><sup><span>2+</span></sup><span lang="EN-GB">and Pb</span><sup><span>2+ </span></sup><span lang="EN-GB">ions respectively, and optimum amount of 2.5 g with</span><span> initial metal</span><span lang="EN-GB"> ions concentration of 10 mg L<sup>-1</sup>.</span><span lang="EN-GB">Different isotherm models, namely Langmuir, Freundlich, Temkin and Dubinin–Radushkevich were used to analyze the investigational data, and the models parameters were evaluated. The </span><span>maximum removal capacities (</span><em><span lang="EN-GB">Q<sub>max</sub></span></em><span>) estimated by Langmuir isotherm were 0.276 and 0.171 mg g<sup>-1</sup> for Ni<sup>2 +</sup></span><span lang="EN-GB">and Pb</span><sup><span>2+</span></sup><span lang="EN-GB">, respectively. Furthermore, the kinetic studies proved that alga has poor fit by pseudo first-order model while they have a good fitting with pseudo second-order model. In addition, the applications of alga to remove pb</span><sup><span>2+</span></sup><span lang="EN-GB">ions from seawater and wastewater were investigated under optimization conditions. </span>
Sargassum latifolium,Heavy metals,Adsorption,Isotherm model,Kinetics equation
https://ejabf.journals.ekb.eg/article_66839.html
https://ejabf.journals.ekb.eg/article_66839_d7cb6ad39d98391b3c14d0bc431184d6.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Growth and economic performance of Clarias gariepinus fed diets containing dry heat-treated Luffa cylindrica seedmeal
301
312
EN
Jimoh,
W. A.
Shittu,
M. O.
Ayeloja,
A. A.
Abdulsalami,
S. A.
10.21608/ejabf.2019.66651
A 56-day feeding trial was carried out to determine the effect of processing time, inclusion level and/or interaction of <em>Luffa cylindrica </em>seedmeal on the growth and economic performance of <em>Clarias gariepinus</em>. The experiment was designed to include processing times (of 5- and 10- minutes toasting) and inclusion levels (of 15 and 30% <em>Luffa cylindrica</em>) making four test dietary treatments. A diet without <em>Luffa cylindrica </em>seedmeal served as control. A total of 225 <em>Clarias gariepinus </em>juveniles (4.30g average weight) were distributed equally into fifteen experimental 70-litre capacity aerated rectangular plastic tanks. Triplicate groups of each treatment were made. Fish were fed 5% body weight on two equal proportions per day for 56 days. The results of the experiment showed Distinct variations (p<0.05) existed on the effect of processing time on the growth performance parameters, the effect of 5-minutes toasted series on growth parameters were significantly different (p<0.05) from 10-minute toasted series. 15% replacement levels had significantly higher (p<0.05) effects on growth performance parameters than 30% replacement levels. The 10-minute toasted series had higher gross margin and net return but significantly (p<0.05) lesser than control. However, fish produced by D1030T yielded a significantly higher gross margin and net return than the other test diets.
Luffa cylindrical,Economic performance,growth parameters,net return,Clarias gariepinus
https://ejabf.journals.ekb.eg/article_66651.html
https://ejabf.journals.ekb.eg/article_66651_b936e7cca6522d05f045a1a7de40e5bc.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
25
Ultrastructural study of the ovary and oogenesis of Polyonchobothrium clarias Woodland, 1925 (Cestoda: Bothriocephalidea) infecting Clarias gariepinus from Egypt.
313
325
EN
Sabry
E. El-Sayed
Department of Zoology, Faculty of Science, Zagazig University, Egypt
Azza
A. Taeleb
Department of Zoology, Faculty of Science, Zagazig University, Egypt
Salwa
Z. Arafa
Department of Zoology, Faculty of Science, Zagazig University, Egypt
Sameh
S. Ali
Department of Zoology, Faculty of Science, Zagazig University, Egypt
Hewaydah
E. Abou Shafeey
Zoology department-Faculty of Science- Tanta University
hewaydah@yahoo.com
10.21608/ejabf.2019.66154
The ovarian tissues and different stages of oocytes development of <em>Polyonchobothrium clarias</em> Woodland, 1925 recovered from the intestine of <em>Clarias gariepinus</em> Burchell, 1822 fish was investigated by transmission electron microscope (TEM). The ovarian follicles are enveloped by compressed epithelial sheath lying on basal layer that shows epithelial projection into the lumen of each follicle. The epithelial sheath filled with glycogen, mitochondria and solitary lipid droplets. The epithelial nuclei are appeared closed to the basal part of the ovarian follicle. Numerous heterogeneous electron dense myelin-like bodies observed within the ovarian cytoplasm they appeared different irregular shaped. Each ovarian follicle contains number of oocytes loosely packed within the follicle at different stages of differentiation developmental stages starting with oogonial cells, primary, secondary and mature oocytes. The Oogonia were undergoing characteristic cytological changes that lead to oocyte maturation. Vitelline material appears in early stages of primary oocytes. Lipid droplets appeared in late stages of secondary oocyte. Mature oocytes are filled with clusters of cortical granules adjacent to the oocyte plasma membrane. Syncytial interstitial tissue and number of myelin-like bodies are observed in the ovarian cytoplasm and they fill the cytoplasmic spaces. The results of the present study were compared with the previous reports in other cestode taxa, to define the ultrastructural observations of the female reproductive tissues for clarification the reproductive fecundity of the parasite.
P. clarias,Bothriocephalidae,Clarias gariepinus,Oogenesis,Ovarian tissues,Ultrastructure
https://ejabf.journals.ekb.eg/article_66154.html
https://ejabf.journals.ekb.eg/article_66154_7b44bde18f8cab5037ef6b35f027bffe.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
27
Use of microscopic and molecular techniques to assess removal of parasitic protozoa via conventional and compact drinking water treatment processes
327
339
EN
Mahmoud
A. Gad
Fatma El-Zahraa
R. Saleh
Effat
A. Morsy
Mohamed
A. Marouf
Ahmad
Z. Al-Herrawy
10.21608/ejabf.2019.67228
The delivery of safe drinking water services depends on effective role played by stakeholders. From the parasitological point of view, the Egyptian standards for drinking water denied the presence of any type of living protozoan parasites in potable water produced for human use. In the present study, raw and treated water samples were separately collected from a conventional drinking water treatment plant (DWTP) and a compact unit. They were concentrated through nitrocellulose membrane filters (0.45µm pore size). The concentrate of each sample was examined with both light microscopy and PCR. Six genera of parasitic Protozoa (<em>Giardia, Cryptosporidium, Entamoeba, Balantidium, Cyclospora </em>and <em>Isospora</em>) and a group of microsporidial spores were detected in inlet water samples of the two examined treatment systems. Microscopically, the obtained data declared that 70.8% and 83.3% of inlet water from conventional DWTP and compact unit, respectively were contaminated with parasitic protozoa. The encountered parasitic protozoa in inlets of examined DWTPs were only microsporidial spores representing 8.3% and 16.7% of treated water from conventional DWTP and compact unit, respectively. Removal of protozoan parasites was higher in conventional DWTP (82.4%) than in compact unit (75%). Molecularly, the presence of protozoan parasites in the outlet of the compact unit was higher than in the outlet of the conventional DWTP. In general, molecular detection of protozoan parasites revealed a little bit lower or equal (in some instances) prevalence than that obtained by microscopy. In conclusion, most of inlet water samples from both conventional DWTP and compact unit were contaminated with protozoan parasites. Although conventional DWTP was more effective than compact unit for removing parasitic protozoa, l some of these parasites could be still detected in treated water and thus reach to consumers and cause health hazards.
Enteric Protozoa,Parasites,Morphology,PCR,Water treatment,DWTP
https://ejabf.journals.ekb.eg/article_67228.html
https://ejabf.journals.ekb.eg/article_67228_bccde9d6185cbaa8d71d8f9a1ae86f4e.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
The Benthic Macro-Invertebrate Fauna of Owalla Reservoir, Osun State, Southwest, Nigeria
341
356
EN
Aduwo,
Adedeji Idowu
Adeniyi,
Israel Funso
10.21608/ejabf.2019.67372
The benthic macro-invertebrate composition of Owalla Reservoir in Southwest Nigeria was surveyed over two annual cycles (2011 – 2013). The study aimed at providing information on their taxonomic composition, abundance and distribution pattern (both in time and space) of the occurring species in the reservoir. Twenty (20) sampling stations representing the major habitat types and basins were established across the reservoir. Bottom sediments were collected using a Van Veen grab and sieved through a 0.5 mm mesh sieve using the reservoir water. The residues were preserved inside a specimen bottle in 10 % formalin and labeled appropriately for specimen analysis and identification which were carried out in the laboratory using appropriate identification keys. The benthic macro-invertebrates of Owalla Reservoir comprised 18 different species belonging to three major phyla (Arthropoda, Annelida and Mollusca), with a total abundance of 5076 individuals. <em>Melanoides tuberculata</em> was the most dominant species (90 % occurrence) and the most abundant (4128 individuals). <em>Enallagma</em> sp. was the least occurring (10 %) while <em>Physa acuta, Radix natalensis </em>and <em>Mutela </em>sp.were the least abundant (16 individuals each). Most of the organisms did not show significant (p > 0.05) spatial variations and none of them showed significant (p > 0.05) seasonal variations in the reservoir. The benthic macroinvertebrate composition of the reservoir is mainly dominated by taxonomic groups with little tolerance to water pollution. This is an indication of little or no anthropogenic influences on the reservoir’s water quality from activities within the catchment basin and an indication of a healthy water condition.
Phytobenthos,Zoobenthos,open water,littoral,anthropogenic
https://ejabf.journals.ekb.eg/article_67372.html
https://ejabf.journals.ekb.eg/article_67372_0a597d1d80ce78b0c44c452ca90d4d3b.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Length-Weight Relationships of Thirteen Species of Parrotfish (Family Scaridae) inhabiting the Egyptian coasts of the Red Sea.
357
366
EN
Amal
M. Amin
Azza
A. El-Ganainy
Manal
M. Sabrah
10.21608/ejabf.2019.67370
Length-weight data of population are basic parameters for any monitoring study of fishes since it provides important information about the structure of the populations. Also, it is important for fish stock assessment essential for estimating growth rates, age structure, calculate the standing stocks biomass, condition indices and several other aspects of fish population dynamics. Therefore, we investigated the length-weight relationships of 13 parrotfish species (Family Scaridae) collected seasonally from the Egyptian Red Sea coast during 2014/2016. The" b "values of the length-weight relationships ranged from 2.17 to 3.88 with a mean value of 2.729±0.0788 (S.E.) for the studied species. <em>Chlorurus geuozonatus</em> showed a positive allometric growth while <em>Calotomus viridescens</em>; <em>Cetoscarus bicolor; Chlorurus sordidus</em>; <em>Chlorurus gibbus</em>; <em>Hipposcarus harid</em>; <em>Scarus frenatus</em>; <em>Scarus ferrugineus</em>; <em>Scarus fuscopurpuerus</em>; <em>Scarus ghobban</em>; <em>scarus niger</em> and <em>Scarus psittacus</em> were show a negative allometric growth. Isometric growth was represented by two species <em>Hipposcarus harid</em> and <em>Scarus colon</em>. 98% of the studied species had "R²" values higher than 0.90, which indicated the increase in length will contribute with increase in weight. These results are useful references for the management plan.
Red Sea,Scaridae,Chlorurus geuozonatus,Calotomus viridescens,Parrotfish,growth type
https://ejabf.journals.ekb.eg/article_67370.html
https://ejabf.journals.ekb.eg/article_67370_e58b646f23b4ff083d6211d57e68376e.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
A comparative study of Nano-iron and zinc as feed additive on growth performance, feed efficiency and chemical body composition of Nile tilapia fingerlings (Oreochromis nilotiucs)
367
380
EN
Mohamed
S. M. Abdel-Hammed
Sobhy
M. Allam
Attalla
A. Metwally
Kamal
A. El-Deeb
Mohamed
F. Abdel-Aziz
10.21608/ejabf.2019.105430
An experiment was conducted to compare the effect of three levels of nanoparticles iron (nFe<sub>2</sub>O<sub>3</sub>) and zinc (nZnO) with the same levels of bulk Fe (Fe<sub>2</sub>O<sub>3</sub>) and Zinc (ZnO) as feed additive on growth performance, feed efficiency, chemical body composition and tissue accumulations of Fe and Zn of Nile tilapia fingerlings (17.73 g). A basal diet (30.71%CP) was used with all treatments. This experiment consisted of seven. The fish reared in fiberglass tanks (1.5m3). The fish fed twice daily 8: am and 4: pm, a rate of 5% of the biomass. The experimental period was 80 days. Statistical analysis showed significant differences between the treatments in growth parameters, feed efficiency parameters, body chemical composition, and tissue accumulation of Fe and Zn. T6 (40 mg Nano iron oxide + 40 mg Nano zinc oxide) achieved the best growth and feed conversion ratio (FCR). This experiment cleared that, nanoparticles Fe+Zn resulted in increasing the muscle content of Fe, while the liver and gills content of Fe was increased with bulk Fe+Zn. Also, bulk Fe+Zn led to an increase in the muscles, gills content of Zn in comparison with the liver content of Zn.
Nile tilapia,feed additive,iron,zinc,Nanoparticles,Growth performance,feed efficiency
https://ejabf.journals.ekb.eg/article_105430.html
https://ejabf.journals.ekb.eg/article_105430_4033f9373d69547c8c1d4cd1ececec1c.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Application of some biological indices to benthic macroinvertebrates related to water quality index of Lake Burullus, Egypt
381
391
EN
Soad
S. Abdel Gawad
Mohammed
H. Abdo
10.21608/ejabf.2019.66838
Seven chemical variables; Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), Total Dissolved Solids (TDS), Ammonia (NH<sub>3</sub>), Nitrate (NO<sub>3</sub><sup>-</sup>), Orthophosphate (PO<sub>4</sub><sup>3-</sup>) and Total Suspended Solids (TSS) were measured at twelve stations covering all area of Lake Burullus during winter and summer seasons (2018). These parameters were used to estimate Nile Chemical Pollution Index (NCPI) at each station. From the same stations, Macrobenthic invertebrates were collected, sorted, identified and counted. Twenty-three families were recorded during this study, seven of them are bioindicatory families: Viviparidae, Planorbidae, Thiaridae, Physidae, Neritidae Tubificidae and Chironomidae. Biological Monitoring Working Party (BMWP) and Biological Monitoring Working Party Average Score Per Taxon BMWP-ASPT) were applied to biological data. Regression values between the chemical index and BMWP, BMWP-ASPT indices showed nonsignificant values (P value more than 0.05) during winter and summer. BMWP and BMWP-ASPT indices were not similar with chemical indices. It was concluded that these indices can not used to assess water quality of Lake Burullus,so BMWP and BMWP-ASPT need more developments according to bioindicators organisms of Lake Burullus and its nature.
Biological monitoring working party,Macrobenthos invertebrates,Lake Burullus,Water quality index
https://ejabf.journals.ekb.eg/article_66838.html
https://ejabf.journals.ekb.eg/article_66838_c7f5faf6cc77ae9a2916db0c5feb0750.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
28
Environmental Hazardous Optimization of Chlorine Disinfectant by- products of Drinking Water: Plants and Distribution System "Case Study"
393
403
EN
Fathy
M. Mohamed
Faten
Nasr El-Deen
Mohamed
H. Abdo
10.21608/ejabf.2019.66696
Trihalomethanes (THMS) are chemicals that are formed when naturally occurring organic materials combine with free chlorine as disinfection byproducts. In spite of the fact that there is a peril of utilizing THMs in chlorinated drinking water, the health dangers of un-disinfected water is much greater. Therefore, this study concerned with lowering chlorine dose to amount adequate to kill waterborne pathogen with low concentration of THMs compound formation. The analysis program was conducted in Qena district at 5 fixed points comprised Salhyia plant outlet and four sites represented beginnings, middle and end of the plant network to determine the presence of chlorine disinfection by-products in treated water with respect to the disinfection process. So, chlorine dose, THMs compounds concentration, temperatures and bacteriological counts were measured a long three months. The results showed that when the chlorine dose reduced gradually to 4 mg L<sup>-1</sup>, formation of chloroform, bromoform, dichlorobromomethane and total THM compounds in the plant outlet decreased gradually and reached to its least concentration (6.2, 3.3,0.0, 10.9 μg L<sup>-1 </sup>respectively) and inhibited in some cases. This reduction in THM compound formation was also directly proportional to decreasing in temperature ratios. Moreover, bacteriological analysis showed that chlorine reduction did not affect its disinfection efficiency even at the end of the network. So it is recommended to reduce the population's exposure to halogenated organic compounds in drinking water by decreasing the chlorine dose without affecting the disinfection efficiency.
Trihalomethanes,Chlorine,Disinfection,by-products,pathogens
https://ejabf.journals.ekb.eg/article_66696.html
https://ejabf.journals.ekb.eg/article_66696_87702b0713b1afc41b0025519e3e349b.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Biological aspects and exploitation of Plectorhinchus gaterinus (Forsskal, 1839) (F: Haemulidae) from the northern Red Sea, El-Tor, Egypt
405
413
EN
Amal
M. Amin
Azza
A. El-Ganainy
Manal
M. Sabrah
10.21608/ejabf.2019.67371
This investigation is considered to be the first analysis involving the most useful parameters for the management purposes of <em>Plectorhinchus gaterinus</em> from El-Tor, Egyptian northern Red Sea coast. Age was estimated by using two methods, the fish otolith reading and the length-frequency analysis (LF) of 248 samples collected through the fishing season 2015/2016. The length-weight relationship was determined for all samples, that ranged from 11.0 to 39.0 cm. The "b" value exhibits an isometric growth pattern (b ≈ 3.0). Eight age groups were recorded by the two methods. Growth parameters were estimated by applying the plager method's, 1983 where the asymptotic length (L<sub>∞</sub>) and the growth rate (K) were computed as 41.02 cm and 0.28 year<sup>-1</sup> respectively from the otolith reading, while that resulted from (LF) analysis were 43.78 cm and 0.21 year<sup>-1 </sup>respectively. The total mortality rate (Z) was 0.66/Y, natural mortality (M) was 0. 34/Y then the fishing mortality (F) was 0.32/Y. Length at first sexual maturity was estimated to be in the length group of 23.0-23.9 cm for males while it was in the range of 25.0-25.9 cm in females. The results indicated that the current fishery status of <em>Plectorhinchus gaterinus</em>from El- Tor, Egyptian Red Sea is in the optimum exploitation rate (E = 0.48) and any additional fishing effort will cause an over-exploitation and destroy the fish stock.
Plectorhinchus gaterinus,Egyptian northern,Red Sea,Age,Growth,mortality,exploitation rate
https://ejabf.journals.ekb.eg/article_67371.html
https://ejabf.journals.ekb.eg/article_67371_f5d332f31fad7ca92f29b63532b92ef3.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
01
Ulva lactuca as a cheap and safe biopesticide in fields and its chemical composition (in vitro)
415
428
EN
Hadear
Hanie Amin
10.21608/ejabf.2019.67227
<em>Ulva lactuca </em>is a green macro alga called sea lettuce, was isolated from marine environment of Egypt. Its phytochemical constituents were determined by quantitative and qualitative tests using nine solvents different in their polarity. Its chemical structure also was proved by FT-IR spectroscopy. According to its enrichment chemical structure its biological activities as antioxidant, bactericide, fungicide and insecticide against human, plants, fish, poultry and animals pathogens and insects were investigated. Aqueous extract was the best as bactericide and fungicide and also give a good results as insecticide. <em>Ulva</em> <em>lactuca</em> showed antioxidant activity with IC<sub>50</sub> = 9.6 mg/ml. Biological activity of <em>Ulva lactuca </em>related to its chemical structure and revealed its importance as natural pesticides.
Ulva lactuca,Phytochemical structure bactericide,Fungicide insecticide,antioxidant
https://ejabf.journals.ekb.eg/article_67227.html
https://ejabf.journals.ekb.eg/article_67227_1f650077fb66d8f45bbdab3ae83d4936.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
30
Comparative evaluation of trace element concentration in grey mullet (Mugil cephalus) caught in Black and Aegean Seas. Potential health risk assessment.
429
438
EN
Katya
Peycheva
0000-0002-5010-1147
peytcheva@hotmail.com
Veselina
Panayotova
Albena
Merdzhanova
0000-0002-1209-4847
a.merdzhanova@gmail.com
10.21608/ejabf.2019.66840
The consumption of fish worldwide has increased speedily in recent years particularly with the awareness of its nutritional and therapeutic benefits. In addition to being important source of protein, fish are enriched with essential minerals, vitamins, and unsaturated fatty acids. However, fish normally accumulate heavy elements from the environment which they inhabit which makes them a good indicator of heavy element contamination.<br /> <br /> <br /> <br /> <br /> <br /> This study evaluates heavy elements’ levels (Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in commercially important grey mullet (<em>Mugil cephalus</em>) caught from Black Sea (Bulgaria) and Aegean Sea (Greece). The samples of edible part of fish species were randomly collected, processed, and analyzed for toxic and essential elements using ICP-OES. Results revealed that studied microelements concentrations varied among the fish species. Human health risk is evaluated using different indexes. Estimated weekly intake (EWI) for the elements do not exceeded the provisional tolerable weekly intake (PTWI) for all studied fish species. The target hazard quotients (THQ) of all elements were below 1, showing an absence of health hazard for the population consuming these fish species. Also, target risk (TR) of Ni and Pb indicated that consumption over a long period of time may not result in a carcinogenic effect. Additionally, the results from this study show that consumption of the edible muscle tissues of those two fish species from both areas do not pose a risk for human consumption
Heavy elements,Grey mullet,Mugil cephalus,Black Sea,Aegean Sea,Risk assessment
https://ejabf.journals.ekb.eg/article_66840.html
https://ejabf.journals.ekb.eg/article_66840_e5cdd3173fa14d2ef14cdd0e4819bbb4.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
29
Ultrastructural investigations of vitellogenesis and oogenesis of Proctoeces sp. infesting Platycephalus indicus fishes caught from Alataka Harbor, Suez Gulf, Egypt.
439
450
EN
Salwa
Z. Arafa
Mahmoud
A. Salama
10.21608/ejabf.2019.67402
Heavy infestations with the intestinal parasite <em>Proctoeces </em>sp < em>. were detected in the bar-tail flathead <em>Platycephalus indicus</em> collected from Alataka harbor, Suez Gulf, Egypt. Different developmental stages of vitellocyte and oocyte maturations of this digenean parasite were studied using transmission electron microscopy. The vitelline masses are covered with a delicate fibrous layer and enclosed with segregated circular muscle bundles. The first stage(S 1) of vitellocytes maturation is distinguished by a large centrally located oval nucleus and abundant mitochondria and free ribosomes fixed at a perinuclear reside. The second stage(S 2) of vitellocyte maturation has greater cytoplasmic volume, Golgi vesicles, granular endoplasmic reticulum and the vitelline globules became more electron-dense. The third stage (S 3) is characterized by an oval nucleus, shell globules with different sizes aggregated in clusters, electron-lucent lipid droplets and osmiophilic glycogen .The cytoplasm of mature vitellocytes (S 4) was gradually degraded, involving analogous sacs of granular endoplasmic reticulum situated at the peripheral and perinuclear regions, glycogen granules, lipid droplets and packed larger globule clusters. During vitellocyte developmental stages, the nucleo-cytoplasmic ratio decreased while the synthetic activities increased. Detailed ultrastructural characteristics of four different developmental stages of oocyte maturation were briefly described.
Ultrastructure,Vitellogenesis,Oogenesis,Proctoeces sp,Platycephalus indicus,Alataka Harbor,Suez Gulf
https://ejabf.journals.ekb.eg/article_67402.html
https://ejabf.journals.ekb.eg/article_67402_5ebdc53cf963064bb9f101c193629ae9.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
29
Fishery status of the longnose parrotfish, Hipposcarus harid (Forsskal, 1775) in the southern Red Sea, Shalateen, Egypt.
451
459
EN
Amal
M. Amin
Azza
A. El-Ganainy
Manal
M. Sabrah
10.21608/ejabf.2019.68009
This is the first analysis for estimating the essential fisheries indices for <em>Hipposcarus harid</em>from Shalateen fishing port on the northern Red Sea coast of Egypt. The age was predicted by using scales reading for 179 fish collected through the fishing season from 2014 to 2016. Six age groups were observed for sexes combined. Calculated "b" value was 2.899 showed negative allometric growth. The estimated Von Bertalanffy growth parameters was L<strong><sub>∞</sub></strong> = 55.95 cm, K = 0.22 year<sup>-1</sup>and t<sub>0</sub> = -0.724year<sup>1</sup>. The rate of total mortality (Z) was (1 year<sup>–1</sup>), natural mortality (M) was 0.30 lower than the fishing mortality (F= 0.70). The exploitation ratio (E = 0.70) was high<span style="text-decoration: line-through;">er</span> and exceeded the 0.5 optimal values for sustainable yield. The length at first capture (Lc= 20.6cm, 1.3year) was lower than the length at first sexual maturity (Lm= 22.3 and 23.5 cm; 1.6 and 1.8 years) for males and females respectively). In addition, (F=0.70 year<sup>–1</sup>) was higher than the target biological reference point (F<sub>opt</sub>=0.15; F<sub>limi</sub>= 0.2; F<sub>max</sub> =0.43 and F<sub>0.10 </sub>=0.3). By using the reference points of E<sub>max</sub>, E<sub>0.1, </sub>and E<sub>0.5</sub>, current exploitation rates suggest unsustainable stocks for this species in the Shalateen fishing port.
Hipposcarus harid,longnose parrotfish,Age,Growth,mortality,exploitation rate,Red Sea,Shalateen port
https://ejabf.journals.ekb.eg/article_68009.html
https://ejabf.journals.ekb.eg/article_68009_fdaf4161e0810625e87a6ba98712d3ca.pdf
The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)
Egyptian Journal of Aquatic Biology and Fisheries
1110-6131
2536-9814
23
5 (Special Issue)
2019
12
15
Physical, Chemical Properties Assessment and accumulation of Some Heavy Metals in Sediment of Edku Lake, Egypt
461
476
EN
Alam
El-Deen Farouk
Soha
Mahmoud Ahmed
10.21608/ejabf.2019.70595
To evaluate the physical, chemical properties and some heavy metals in sediment of Edku Lake the present study was carried out between January 2018 and December 2018 to identify the sediment pollution and assess its quality by calculating ecological indices, Sediment texture of the lake was classified as clay loam, organic matter (O.M) increased significantly as near to the source of the drainage canal while pH significantly increased as close to alkaline side of the Lake. Cations and anions are shown an increase at the end of the study than the beginning and the highest concentrations recorded nearest drainage water. The heavy metals ions concentrations in sediment varied widely and exhibit fluctuations among different metals during beginning and end of the present study, the order of abundance of these metals’ Fe<sup>2+</sup> > Mn<sup>2+ </sup>> Zn<sup>2+ </sup>> Cd<sup>2+</sup> > Pb<sup>2+</sup>. The highest concentrations of heavy metals were recorded at the sites nearest drainage water. Ecological indices showed that all studied sediment samples are classified as moderate contaminated (1 ≤ CF < 3) for Fe<sup>2+</sup> except Boughaz site which belongs to the low contaminated category mean while Mn<sup>2+ </sup>at all sites described as very high contaminated (CF ≥ 6). Also, there is a considerable degree of contamination (16 ≤ C<sub>d</sub> < 32) for all sites except site 6 described as a very high degree of contamination indicating serious anthropogenic pollution (C<sub>d</sub> ≥ 32). All sites sediment samples classified as low potential ecological risk (Er<sup>i</sup> < 40) for Zn<sup>2+</sup> and Pb<sup>2+</sup> values, while the contamination of Cd<sup>2+</sup> was reached to very high ecological risk (Er<sup>i</sup> ≥ 320) at all sites. Where, the sites (1, 6 and 7) were recorded to very high ecological risk (RI ≥ 600) while, other sites (2, 3, 4 and 5) were classified as considerable ecological risk.
Edku Lake,Sediment,physical and chemical properties,Heavy metals,Ecological indices
https://ejabf.journals.ekb.eg/article_70595.html
https://ejabf.journals.ekb.eg/article_70595_2586f5160ca10861e5e0659be53b61b9.pdf