Benthic invertebrate fauna in Ashtoum El Gamil protected area (Lake Manzalah), Egypt.
Abdel Gawad, S., Abdelhamid, A., Mabrouk, A., El-Barbary, M. (2012). Benthic invertebrate fauna in Ashtoum El Gamil protected area (Lake Manzalah), Egypt.. EKB Journal Management System, 16(4), 91-101. doi: 10.21608/ejabf.2012.2145
S. Abdel Gawad; A. Abdelhamid; A. Mabrouk; M. El-Barbary. "Benthic invertebrate fauna in Ashtoum El Gamil protected area (Lake Manzalah), Egypt.". EKB Journal Management System, 16, 4, 2012, 91-101. doi: 10.21608/ejabf.2012.2145
Abdel Gawad, S., Abdelhamid, A., Mabrouk, A., El-Barbary, M. (2012). 'Benthic invertebrate fauna in Ashtoum El Gamil protected area (Lake Manzalah), Egypt.', EKB Journal Management System, 16(4), pp. 91-101. doi: 10.21608/ejabf.2012.2145
Abdel Gawad, S., Abdelhamid, A., Mabrouk, A., El-Barbary, M. Benthic invertebrate fauna in Ashtoum El Gamil protected area (Lake Manzalah), Egypt.. EKB Journal Management System, 2012; 16(4): 91-101. doi: 10.21608/ejabf.2012.2145

Benthic invertebrate fauna in Ashtoum El Gamil protected area (Lake Manzalah), Egypt.

Egyptian Journal of Aquatic Biology and Fisheries
Article 7, Volume 16, Issue 4, September 2012, Page 91-101  XML PDF (269.56 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2012.2145
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Authors
S. Abdel Gawad1; A. Abdelhamid2; A. Mabrouk2; M. El-Barbary3
1National Institute of Oceanography and Fisheries, Hydrobiology Lab., Egypt
2Animal Production Department, Faculty of Agriculture, Al-Mansourah University, Egypt
3National Institute of Oceanography and Fisheries, Fish Pathology Lab., Egypt
Abstract
Macrobenthic and meiobenthic invertebrates' samples were collected seasonally during 2010 from five stations in Ashtoum El Gamil protected area which located in the north western part of Lake Manzalah. Macrobenthic community was found including fifteen species belonging to three groups. Of these, 11 Mollusca, 2 Arthropoda and 2 Annelida. Some of them have a freshwater origin and others have marine origin. Mollusca has been ranked the first position, constituting about 68.5 % of the total population density (P. D.) of macrobenthic invertebrates, followed by Arthropoda and Annelida, constituting 28.7 % and 2.8 % respectively. The highest average standing crop was recorded in station 3. Macrobenthic fauna average value reached its maximum in winter in the whole area, while summer was the least productive season. Meiofauna community consisted of 3 main groups. Ostracoda was the first one, constituting 70.71 % of the total population of meiofauna followed by Foraminifera (27 %) and Nematoda (1.5 %). Meiofauna flourished during summer and spring in the area, while it reached its minimum levels during autumn and winter. Salinity and nature of the sediment were important factors affecting distribution and abundance of benthic invertebrates.
Keywords
Macrobenthic invertebrates; meiobenthic invertebrates; Fauna; population density
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