The Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101WATER HYACINTH AS A BIOLOGICAL TREATMENT FOR SEWAGE WASTE WATER IN AQUACULTURE EARTHEN PONDS120182710.21608/ejabf.2006.1827ENIbrahim Abd ES-FattahCentral Laboratory for Aquaculture Research (CLAR)- Abbassa- Sharkia-EgyptJournal Article20170330
Afield study was applied at Shader Azam ,while the laboratory analysis was conducted at Central Laboratory for Aquaculture Research (CLAR), Abbassa Abou-Hammad, Sharkia Governorate. This study was designed to investigate the effect of water hyacinth cultivation in earthen pond on removal of different pollutatnts such as heavy metals, nitrogen<br />compounds and their effect on growth performance of Nile tilapia and Mullet.The removal of heavy metals from sewage wastewater in aquaculture earthen ponds by the water hyacinth, Eichhorma crassipes (Mart.) was investigated. Results showedthat water hyacinth adsorbed organic compounds, improved pH, NHs, DO, nitrogen compound and SD. Also,<br />water hyacinth absorbed phosphorous from sewage wastewater. The reduction of heavy metals from sewage wastewater ranged from 24 to 82.5%. The cultivation of water hyacinth in ponds decreased growth performance of Nile tilapia and Mullet, but the accumulation of heavy metals in fish organs was sharply decreased with increasing water hyacinth<br />cultivation in ponds. The highest concentrations of heavy metals were found in liver tissues followed by gills then muscles. Only gutted fish with removed gills would be recommended for consumption due to the heavy<br />metals concentrations in gills, liver and kidney tissues. The accumulation of heavy metals in the plant roots was higher than in leaves. Water hyacinth was found to remove about 90% of different pollutants from sewage<br />wastewater. https://ejabf.journals.ekb.eg/article_1827_97d78e86402581bc25e72360cea08dd0.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101ECOLOGICAL STUDIES ON ZOO PLANKTON COMMUNITY OF LAKE BURULLUS, EGYPT2143182810.21608/ejabf.2006.1828ENAbd E!-HaIim SaadNational Institute of Oceanography & Fisheries, Fish Research Station, El-Kanater
El-Khyria, Egypt.Magdy KhalilNational Institute of Oceanography & Fisheries, Fish Research Station, El-Kanater
El-Khyria, Egypt.Gamal El-ShabrawyNational Institute of Oceanography & Fisheries, Fish Research Station, El-Kanater
El-Khyria, Egypt.Tadros BcdirZoology Dept., Faculty of Science, Ain Shams UniversityJournal Article20170330Zooplankton community of Lake Burullus was surveyed for four successive seasons during 2001/2002. Forty eight species of zooplankton were identified during the present study in the Lake (34Rotifera, 7 Copepoda and 7 Cladocera). Rotifera dominated the other groups forming 73.5 % of total zooplankton.Decreasing of salinity and dominating of drainage water in Lake Burullus during the last two decades led to change in species composition and biodiversity of zooplankton. There was no sign of occurrence of 10 marine species which have been previously recorded in the lake during early<br />1980's. But, on the other hand, 18 freshwater species have been recorded for the first time in the lake. The population density of zooplankton was obviously higher in western part of the lake, with a major peak of an average 1,764,333 org. m"3 . Regarding seasonal variation, there was a gradual increase in zooplankton standing crop from a minimum of 523,300 org. m" in autumn until reaching a maximum of 1,353,182 org.m"3 in summer, with an overall<br />average of 902,911 org.m"3.https://ejabf.journals.ekb.eg/article_1828_ca82d4a7a309913d03fa4d768d963c81.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101AQUACULTURE POTENTIAL OF EUROPEAN EEL (ANGWLLA ANGU1LLA) IN EARTHEN PONDS AT LAKE MANZALA FISH FARMS, EGYPT.4553182910.21608/ejabf.2006.1829ENAbdalla El-SheblyNational Institute of Oceanography and Fisheries, Egypt.Journal Article20170330Apreliminary experiment was conducted to assess the aquaculturepotential of eels under pond conditions. Seeds of the European eel (Anguilla anguilla) were used for growth trials in an earthen pond at Lake Manzala. The pond had an area of 3 feddans with a depth of about 1-meter. Juvenile eels (11.66 cm in length and 2.42 g. in weight / fish) were stocked<br />during May 2003 at a rate of 5000 fish / feddan in a polyculture system including tilapia and mullets and fed mainly on natural prey (natural spawned tilapia) and small shrimps. Growth, survival, and net pond production were evaluated for 2 years (from May 2003—May 2005). Eels attained a weight range of 43.8—210 g. / fish with an average of 121.38 g.<br />/ fish at the end of the first year and a weight range of 152.5—430 g. / fish with an average of 280.36 g. / fish at the end of the second year. Survival ranged from 91% during the first year to 100% during the second year. Net<br />eel production was 540.18 kg /feddan at the end of the first year (May 2004) and 723.36 kg / feddan at the end of the second year (May 2005). This experiment demonstrated the possibility of cultivation of eels, that<br />grow better and profitable, in earthen ponds.https://ejabf.journals.ekb.eg/article_1829_2b5672d497df9d9a2767e3dd0a266dea.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101PARASITOLOGICAL AND HISTOPATHOLOGICAL STUDIES ON THE GRASS CARP CTENOPHARYNGODONIDELLA INFESTED WITH TRICHODINA ACUTA WITH SPECIAL EMPHASIS ON ITS CONTROL5571183010.21608/ejabf.2006.1830ENMohamed Abdel-MeguidEnvironment and Climate Research Institute, National Water Research Center, El
Kanater, Kalubyia, EgyptJournal Article20170330An experimental study was conducted to reveal the morphological structure of the ciliate ectoparasite Trichodina acuta on the grass carp Ctenopharyngodon idella, to study the histopathological changes in these infested fish, and to assess potential therapeutic agents. It was found that in the fish fry weighing 0,001 g., the parasite was found on the skin but in the fmgeriing weighing 10 grams it infested on both the skin and the gill filaments. The biometrical data showed that the morphological structure of the protozoan parasite was highly dependent its location on the skin or the gill filaments and on the size of the host fish. Although, larger fish showed detrimental effects due to parasitic infestation, small fish were more susceptible. Histopathological examination of the skin and the gills of infested large fish revealed no apparent microscopic lesions. However, T. acuta invaded the skin of early stages of fish and caused epithelial<br />hyperplasia and extensive mucus secretions. It was found that formalin,malachite green and potassium permanganate were therapeutic and prophylactic against this protozoan parasite.https://ejabf.journals.ekb.eg/article_1830_95bfec0bb0eaab3852af877d82d38abb.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101MASS CULTURE OF MOSQUITOLARVAE (CULEX PIPIENS)AND THEIR NUTRITIVE VALUE AS FOOD FOR THE FREHSWATER PRAWN7397183110.21608/ejabf.2006.1831ENMadlen HabashyNational Institute of Oceanography and Fisheries, Fish Research Station,Qanater El-
Khayriya, Egypt.Suzan DabaResearch and Training Center on Vectors of Diseases, Ain Shams
University, Egypt.Journal Article20170330Larvae of Culex pipiens, mosquito were cultured under controlled laboratory conditions. They were introduced to larvae of the freshwater prawn, Macrobrachium rosenbergii (De Man) in a 7 5-day feeding experiment. Larvae of the prawn with an initial total length of 1.2 cm and initial body weight of 0.02g, received three feeding regimes; (1) live Artemia nauplii alone, Dl (2) live mosquito larvae alone,D2 (3) mixture of Artemia nauplii and mosquito larvae (1:1) (D3). Each treatment was evaluated in duplicate aquaria. The growth rate, survival and amino acids analysis were performed for prawns larvae fed on different diets. No significant difference (P>0.05) was found in growth rates, survival, and<br />amino acid composition of prawns larvae receiving DlandD3.A significantly lower growth and survival rates were observed in prawns larvae fed on mosquito larvae as a sole food and this was due to cannibalism that occurred in this group. The nutritive value and proximate composition of mosquito larvae were measured (crude protein,42.2% and<br />crude lipid,16.1% and high values of most essential amino acids content such as threonine 5.08, valine 5.20, histidine 2.83, isoleucine 6.96, phenylalanine 4.46 and lysine 7.59% ).Also, mosquito larvae contained some major metals such as Ca, Na, K, Mg, Fe, Cu, Zn and Mn. The study revealed that mosquito larvae in their live form failed to improve the<br />growth rate and survival of the freshwater prawn when added to Artemia nauplii. This may be due to their active swimming and breathing behavior. https://ejabf.journals.ekb.eg/article_1831_89a98cf698c3fc7613614dbf6288cbab.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101EVALUATION OF THE NUTRITIONAL VALUE OF THE CRAYFISH, PROCAMBARUS CLARKH (GIRARD, 1852), COLLECTED FROM THE RIVER NILE, EGYPT99110183210.21608/ejabf.2006.1832ENAhmed NadaNational Center of Radiation and Technology, Atomic Energy Authority, Nasr CityKama El-ShaikhZoology Department, Faculty of Science, Helwan University, Cairo, EgyptZakaria YoussefZoology Department, Faculty of Science, Helwan University, Cairo, EgyptJournal Article20170330The present study was conducted to evaluate the nutritional value of the crayfish, Procambarus clarkii since it represents a popular food in many parts of the world, though it is not yet exploited in Egypt. Samples of P. clarkii were collected from four different sites on the River Nile (I:Gezyrat El-Warrak, II: Mania! Sheeha, HI: Al-Hawamdia & IV: Helwan)<br />during the peried from May to September 2002. Muscles (edible part) were isolated, digested and analyzed for the metals<br />content by using the atomic absorption spectrophotometer (AAS). Total protein, total lipids, glycogen and amino acids contents as well as caloric value of muscles were determined.The concentrations of Ca, Cu, Fe, Mg, Mn and Zn in muscles of crayfish in control site (because it has a low factories effluent) were 459.6,4.36, 48.9,1842, 2.51 and 14.2 ug metal/g wet tissue, respectively. Total protein, total lipids, glycogen and amino acids/g muscle tissue were 33.6, 3.8, 0.661,<br />518 mg, respectively. The caloric value of such muscles was 176.6 Cal/mg tissue. The amino acids in muscles comprised 10 essential and 7nonessential amino acids. Variable levels of such parameters were reported in the three examined sites.Relative to allowable limits for rnetals in foods, there was no sufficient accumulation of any metal in crayfish muscles, indicating that no significant health hazards would result from consumption cf such muscles<br />of the animal.https://ejabf.journals.ekb.eg/article_1832_bf4b875d325ebc94bf014bd8c56205b9.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101POPULATION DYNAMICS OF THE GREATER LIZARDFISH, SAURIDA TUMBIL IN THE GULF OF SUEZ, RED SEA, EGYPT111124183310.21608/ejabf.2006.1833ENSahar MehannaNational Institute of Oceanography and FisheriesUsama KhalifaNational Institute of Oceanography and FisheriesAmal AminNational Institute of Oceanography and FisheriesJournal Article20170330Lizard fishes are the most abundant demersal fishes inhabiting the -AGulf-of-Suez. They -were- exploited by-traw! fishery and constkuteabout 31% of the total trawl catch. Age and growth were studied from samples collected during the period from October 2003 to May 2004. Age was determined using otolith's readings. Age and growth rates were<br />different between the two sexes, where females reach greater sizes than males. The age distribution covered age groups I and II for males.and 1 to V for females. The estimated von Bertalanffy growth parameters were U=34.7 cm TL, K = 0.44 year'1 and Woo = 321.13 g. The instantaneous total natural and fishing mortalities were 1.29, 0.24 and 1.05 year"1 respectively,while the exploitation ratio was 0.81. The relative yield per recruit analysis confirmed that this species was heavily exploited and the exploitation rate should be decreased by rising the length at first capture. This can be<br />achieved through regulating the mesh sizes and proposed minimum length at first capture.https://ejabf.journals.ekb.eg/article_1833_65ec93e44b3274566862973876086633.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101LIGHT AND SCANNING ELECTRON MICROSCOPE OBSERVATIONS OF HYSTEROTHYLACIUM WINTER TORRES AND SOTO, 2004(NEMATODA :ANISAKIDAE) FROM BOOPS BOOPS MARINE FISH IN EGYPT125138183410.21608/ejabf.2006.1834ENDayhoum Al-BasselZoology Depatement, Faculty of Science - Fayoum University, EgyptJournal Article20170330The nematode Hysterothylaciwn winteri Torres and Soto, 2004 was 1studied in detail using bright field and scanning electron microscopes.jt was recorded for the first time from the intestine of the marine fish ops boops collected from Alexandria fish market in Egypt. The morphometric data presented here are in agreement with those described by Torres and Soto (2004) for the same species. The most characteristic features revealed in this study are the papillae and amphids of the ventral lips, the ventral groove and associated bands, cuticular spine-like structures on the conical<br />tip of the tail, one pair of postanal papillae, 2 ilae, 6 longitudinal ridges and one pair of phasmid in the lateral part of die tail. The present findings were discussed in comparison with the previously described features of//,<br />winteri.https://ejabf.journals.ekb.eg/article_1834_4ba9789ffa5d470270a1a1e4c6ab7dbf.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101PRECAUTIONARY TARGET REFERENCE POINTS(TRPs) FOR CARANGID FISHERIES MANAGEMENT IN THE GULF OF SUEZ, RED SEA, EGYPT139150183510.21608/ejabf.2006.1835ENUsama KhalifaNational Institute of Oceanography and Fisheries, Egypt.Sahar MehannaNational Institute of Oceanography and Fisheries, Egypt.Journal Article20170330Family Carangidae includes the most abundant species in purse-seine fishery in the Gulf of Suez, where it constitutes about 39% and 6% of the total production of purse-seine and trawl fisheries respectively. Fishery statistics (catch, effort and catch per unit of fishing effort) of the carangid fish exploited by purse-seine and trawl fisheries during the fishing seasons from 1979/80 to 2003/04 were analysed to assess the effect of the two types of fishing gears on the annual carangid production. The maximum sustainable yield (MSY) and the corresponding level of fishing effort<br />(fKjlcv) were estimated as limited reference point using the IVlo Y Schaefer surplus production model. In addition, 2/3 fMSY and the yield corresponding to this effort were calculated as precautionary target reference points. The obtained results indicated that carangids were overexploited in the Gulf of Suez. For achieving the precautionary target<br />reference points, it was recommended to reduce the fishing by about 59.6% and 47.2% for trawl and purse-seine fisheries respectively. In general, the standardized fishing effort of both gears should be reduced by 46.9%. The<br />results showed that reduction of fishing effort to such levels will increase the marginal revenue in term of CPUE by about 33%. Regulating mesh size and defining closed area are recommended as well as studying the gear selectivity and developing a geographical information system for fishing ground in the Gulf of Suez.https://ejabf.journals.ekb.eg/article_1835_9325b129e743010a47e3204ca5917d09.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101ONTOGENY OF CRF- AND ACTH-SECRETING CELLS DURING DEVELOPMENT OF OREOCHROMIS NILOTIC LARVAE151172183610.21608/ejabf.2006.1836ENNoha KhalilNational Institute of Oceanography and Fisheries, Fish Reproduction
Laboratory,alknater ,Egypt.Journal Article20170330Ontogenic development of the onset and localization of the immunoreactivity to antibodies against corticotrophin releasing factor (CRF) and adrenocorticotropic hormone (ACTH) was investigated in the developing of Oreochromis niloticus larvae, by using immunohistochemical technique, in an attempt to disclose a possible involvement of these molecules in the early immune-endocrine integration. The immunocytochemical analysis showed that CRF was<br />localized in the developing gills and digestive tract in the examined stages of development (from 0 to 35 days post-hatching). In gills, CRF immunoreactivity was observed in presumptive chloride cells. In the digestive system, CRF immunoreactivity was restricted to the mucosal epithelium of the undifferentiated digestive tube and in the gastric glands<br />of the stomach. Along the larval development both the number of CRFimmunoreactive (ir) cells and the intensity of immunoreaction were gradually increased especially after the onset of exogenous feeding at 21-28 days post-hatching (dph). ACTH immunoreactivity was obtained only in the goblet cells of the developing intestine, and showed strong<br />immunoreaction during the period of yolk sac resorbtion at 7-10 dph. With the onset of exogenous feeding, ACTH-ir cells showed significant decrease in both the number and size, and gave very weak immunoreaction at 28 dph.<br />The early appearance and broad anatomic distribution of activities of CRF and ACTH in the larvae likely indicates the functional importance of these molecules in osmoregulation, immune response, food intake and growth<br />during development especially in the period after yolk sac resorption. https://ejabf.journals.ekb.eg/article_1836_be37525c268418c6fe8cdd1d8c7e324c.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101TRACE METALS BINDING TO HUMIC AND FULVIC ACIDS FROM SURFACIAL SEDIMENTS OF LAKE MANZALAH, EGYPT.173189183910.21608/ejabf.2006.1839ENMohamed OkbahNational Institute of Oceanography and Fisheries kayet bay,
Alexandria, EgyptMohamed HamedNational Institute of Oceanography and Fisheries Suez, EgyptJournal Article20170330Twelve sediment samples were collected from Lake Manzalah during summer. 2004,to examine the influence of dissolved humic and fulvic acids on the distribution of trace metals in surficial sediments of the Lake. Trace metal concentrations in the humic acid extracted from the Lake sediments showed considerably high contents of iron (1046-3069 u,g/g);<br />copper (234-1498 ug/g) and zinc (110-394 ug/g) . The other trace metals (Co, Cd, Cr, Ni and Mn) revealed low concentrations, ranging from 11.3 to 156 ug/g. The metal concentrations in fulvic acid were in the following<br />order: Fe (465-2767 jag/g); Cu (49.6-250.6 ^ig/g); Zn (49.3-186.6 ng/g);Cd (39.6-80.8 ug/g); Ni (20.4-153.4 [ig/g); Co (12.5-78.0 ^g/g); Mn (11.8-55.9 pg/g) and Cr (9.1-39.6 tig/g). The values of Cu and Cd percentage<br />associated with the humic acid were high comparing with that reported in the other metals: this relative percentage was decreased for the same metals in association with fulvic acid. In general, the results indicated that the amounts of trace metals in humic acids decreased as follows: Fe > Cu >Zn > Ni > Co > Cd > Mn > Cr. While in fulvic acid the order was: Fe >Cu >Zn > Cd > Ni > Co > Mn > Cr.https://ejabf.journals.ekb.eg/article_1839_32f9cb24f63176eec8c14ee7a1884ba2.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101NEWLY RECORDED SPIONID SPECIES (POLYCHAETA) FROM THE EGYPTIAN WATERS, WITH SPECIAL REFERENCE TO POLYDORIDS HABITATS191210184110.21608/ejabf.2006.1841ENSamia SelimNational Institute of Oceanography and Fisheries, Alexandria, Egypt.Journal Article20170330In the present study, 9 spionid species were reported. Five of them are new records to the Egyptian waters. In order to achieve this study fouling components and sediments samples were collected from different sites of Egyptian waters. The recorded spionid species were described and figured in details. The identification of the two Dipolydora species has<br />been corrected. The relation between the surrounding habitat, major spines of setiger 5 and boring activity of the recorded polydorid species was discussed.The geographic distribution of five new taxa recorded indicated that<br />Scolelepis carunculata, Pnonospio aucklandica and Pseudopolydora paucibranchiala appeared for the first time in the Mediterranean Sea. They are of indo-pacific origin and migrated through Suez Canal. While Pnonospio steenslrupi is new to the Egyptian Mediterranean waters and Spiophanes kroeyeri new to the Egyptian Red Sea waters (Suez Bay).https://ejabf.journals.ekb.eg/article_1841_fd57dfc79777c061691e0a3e398cd572.pdfThe Egyptian Society for the Development of Fisheries and Human Health (ESDFHH)Egyptian Journal of Aquatic Biology and Fisheries1110-613110120060101NEW KEY FOR ALGAL DIVISIONS211215184310.21608/ejabf.2006.1843ENA. ShaabanAin Shams university,Faculty of Science Botany DepartmentsPhycoiogy SectionJournal Article20170330This key is intended to serve the purpose of students and workers in phycology and hydrobiology, who have often expressed their wish to an easy method to identify the qualitative and quantitative diversity of algal<br />divisions present in each water sample with applied aspect of the percentage composition of algal populations and the number of individuals or taxa related to each division. Organisms to be placed among the algae is recognizethe following:<br />10divisioins:Cyanophycophyta,Rhodophycophyta,Euglenophycoph yta,Pyrrophycophyta ,Xanthophycophyta, Chrysophycophyta andPhaeophycophyta.Keys specifically written on the identification of algal divisions are<br />completely absent in the world literatures ( Rabenhorst, 1863 ;Pascher,1907 ,1913 ,1915 ,1925 and 1927 ;Prescott, 1931 ; Smith 1932 and Smith,1950 and 1951). Key to the algal divisions I. Algae large in size, reaching lengths of one meter or more, differentiated at apex, node and basal region, with whorls branches at nodes, on which apparently visible by simple eye multicellural reproductive organs. The basal potion in nature is typically attached to muddy or silty substrates by colorless rhizoids. Some are regularly confused with similar appearing aquatic flowering plants(Ceratophyllum spp.).Algae green inhttps://ejabf.journals.ekb.eg/article_1843_c9374510d115e4cce473dbdce121cf6c.pdf