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Ahmed, A., Mohammed, D., Hanafy, M. (2011). Distribution and species composition of the littoral interstiticial free living nematodes in the northern Red Sea, Egypt. Egyptian Journal of Aquatic Biology and Fisheries, 15(2), 159-177. doi: 10.21608/ejabf.2011.2085
Ashraf Ahmed; Diaa Eddien Mohammed; Mahmmoud Hanafy. "Distribution and species composition of the littoral interstiticial free living nematodes in the northern Red Sea, Egypt". Egyptian Journal of Aquatic Biology and Fisheries, 15, 2, 2011, 159-177. doi: 10.21608/ejabf.2011.2085
Ahmed, A., Mohammed, D., Hanafy, M. (2011). 'Distribution and species composition of the littoral interstiticial free living nematodes in the northern Red Sea, Egypt', Egyptian Journal of Aquatic Biology and Fisheries, 15(2), pp. 159-177. doi: 10.21608/ejabf.2011.2085
Ahmed, A., Mohammed, D., Hanafy, M. Distribution and species composition of the littoral interstiticial free living nematodes in the northern Red Sea, Egypt. Egyptian Journal of Aquatic Biology and Fisheries, 2011; 15(2): 159-177. doi: 10.21608/ejabf.2011.2085

Distribution and species composition of the littoral interstiticial free living nematodes in the northern Red Sea, Egypt

Article 1, Volume 15, Issue 2, April 2011, Page 159-177  XML PDF (228.26 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2011.2085
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Authors
Ashraf Ahmed; Diaa Eddien Mohammed; Mahmmoud Hanafy
Marine Science Department, Faculty of Science, Suez Canal University, Ismailia, Egypt.
Abstract
Free living nematodes represent the most abundant and diversified group of the interstitial meiobenthos in the northern Red Sea, where their contribution ranged between 38 and 100% of total count of all interstitial organisms. Nematodes distribution, abundance and species composition in the Egyptian Red Sea were studied during winter, 2006.
Nematodes abundance ranged between 8 and 163 organisms/10 cm2. The intertidal zonation was investigated and showed increasing in the average density of nematodes toward low tide mark (sublittoral zone). A total of 79 nematode species were recorded; xyalid and oncholaimid were the most abundant families contributing 12% for each of total
nematodes count. Densities of nematodes were affected by the grain size of the sediment, TOMs and redox potential (Eh). Also, pollution and landfilling have the most drastic effect on their abundance and diversity. 
Keywords
free living nematodes; Distribution; Abundance; zonation; Community structure; Red Sea
Main Subjects
Fisheries
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