Applied Ecology and Environmental Sciences
ISSN (Print): 2328-3912 ISSN (Online): 2328-3920 Website: http://www.sciepub.com/journal/aees Editor-in-chief: Alejandro González Medina
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Applied Ecology and Environmental Sciences. 2015, 3(4), 117-126
DOI: 10.12691/aees-3-4-4
Open AccessArticle

Impact of Seasonal Water Quality and Trophic Levels on the Distribution of Various Freshwater Snails in Four Egyptian Governorates

Mohamed- Assem S. Marie1, Fatma Afifi Aly El-Deeb2, Wafaa S. Hasheesh1, , Rehab Atef Mohamed1 and Sara Sayed M. Sayed2

1Zoology Department, Faculty of Science, Cairo University

2Environmental Research and Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt

Pub. Date: September 16, 2015

Cite this paper:
Mohamed- Assem S. Marie, Fatma Afifi Aly El-Deeb, Wafaa S. Hasheesh, Rehab Atef Mohamed and Sara Sayed M. Sayed. Impact of Seasonal Water Quality and Trophic Levels on the Distribution of Various Freshwater Snails in Four Egyptian Governorates. Applied Ecology and Environmental Sciences. 2015; 3(4):117-126. doi: 10.12691/aees-3-4-4

Abstract

This study aimed to the density and distributions of some freshwater snails collected from eight freshwater streams at Egyptian governorates (Giza, Ismailia, Menoufia and Gharbia). Physical and chemical properties of water quality (i.e. water temperature, pH, dissolved oxygen, total dissolved solids and electrical conductivity), and measuring ammonia, nitrite, nitrate and phosphate was done. Density of aquatic plants was evaluated. Chlorophyll-a content was measured to determine the trophic level of water. The results revealed that Biomphalaria alexandrina was the most enumeration snail spices, where they have the ability to tolerate and adapt to various environmental circumstances. Results proved that the eutrophic state recorded at Giza and Gharbia whereas, hyper-eutrophic state observed at Ismailia and Menoufia. Eichhornia crassipes; Echinochloa sp. (Water grass) and Lemma gibba aquatic plants were the most dominant aquatic plants and almost they were found in all examined sites.

Keywords:
water quality distribution eutrophication freshwater snails

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