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Egyptian Journal of Aquatic Biology and Fisheries
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El-shabrawy, G. (1999). MONTHLY VARAITIONS AND SUCCESSION OF ROTIFERA IN WADI ELRAYAN AREA IN RELATION TO SOME PHYSICAL AND CHEMICAL CONDITIONS. Egyptian Journal of Aquatic Biology and Fisheries, 3(3), 217-243. doi: 10.21608/ejabf.1999.3436
Gamal El-shabrawy. "MONTHLY VARAITIONS AND SUCCESSION OF ROTIFERA IN WADI ELRAYAN AREA IN RELATION TO SOME PHYSICAL AND CHEMICAL CONDITIONS". Egyptian Journal of Aquatic Biology and Fisheries, 3, 3, 1999, 217-243. doi: 10.21608/ejabf.1999.3436
El-shabrawy, G. (1999). 'MONTHLY VARAITIONS AND SUCCESSION OF ROTIFERA IN WADI ELRAYAN AREA IN RELATION TO SOME PHYSICAL AND CHEMICAL CONDITIONS', Egyptian Journal of Aquatic Biology and Fisheries, 3(3), pp. 217-243. doi: 10.21608/ejabf.1999.3436
El-shabrawy, G. MONTHLY VARAITIONS AND SUCCESSION OF ROTIFERA IN WADI ELRAYAN AREA IN RELATION TO SOME PHYSICAL AND CHEMICAL CONDITIONS. Egyptian Journal of Aquatic Biology and Fisheries, 1999; 3(3): 217-243. doi: 10.21608/ejabf.1999.3436

MONTHLY VARAITIONS AND SUCCESSION OF ROTIFERA IN WADI ELRAYAN AREA IN RELATION TO SOME PHYSICAL AND CHEMICAL CONDITIONS

Article 14, Volume 3, Issue 3, June 1999, Page 217-243  XML
Document Type: Original Article
DOI: 10.21608/ejabf.1999.3436
View on SCiNiTO View on SCiNiTO
Author
Gamal El-shabrawy
National Institute of Oceanography & Fisheries , El-Kanater Fish Research Station, El-Kanater El-Kyryia, , Egypt
Abstract
In Wadi El-Rayan area, two successiv lakes at different levels were created as a reservoir for drainage wastewater from agriculture lands. In the area under investigation rotifers were represented by 34 species,of which 6 were recorded for
the first time, namely:Brachionus falcutus, Monostyla quadridentata, Lecane ledwigi, transparency, dissolved oxygen and chlorosity seem to be the most important factors controlling succession of these rotifers in Wadi El-Rayan area. Generally, rotifers were well represented in the two lakes, as compared with the situation in the other areas. Statistical analysis showed a highly similarity index (45.2) between El-Wadi drain and El-Banat canal, followed by first lake and connecting channel (34.3). The second lake revealed the lowest similarity index with other sites and sustained the lowest richness and equitability values of 1.93 and 0.35, respectively. 
Keywords
Rotifera; Wadi El-Rayan; Ecology
Main Subjects
Fisheries
Statistics
Article View: 372
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