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Seasonal changes and abundance of rotifers in a shallow Manzalah lake (Egypt)
Manzalah lake is a eutrophic coastal lake that has been flooded by excessive agriculture drainage over the last 30 years, changing its ecological status. Fifty-two taxa of rotifers were identified, of these Brachionus angularis, Brachionus plicatilis, Keratella quadrata, Polyarthra vulgaris and Sync...
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Published in: | Ecohydrology & Hydrobiology 2014, Vol.14 (3), p.243-252 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Manzalah lake is a eutrophic coastal lake that has been flooded by excessive agriculture drainage over the last 30 years, changing its ecological status. Fifty-two taxa of rotifers were identified, of these Brachionus angularis, Brachionus plicatilis, Keratella quadrata, Polyarthra vulgaris and Synchaeta oblonga were abundant. The maximum population density (lake average 490individualsL−1) occurred in winter, while the taxa were low in abundance during summer and autumn. The participation of rotifers has increased from 16 species, forming 24% of the total zooplankton in 1971–1973 to 52 species, accounting for 85.1% now. This was concurrent with the progressive dulcification and eutrophication of the lake water. |
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ISSN: | 1642-3593 2080-3397 |
DOI: | 10.1016/j.ecohyd.2014.06.001 |