EI-Shabrawy, G., Taha, O. (1999). EFFECT OF GRAZING PRESSURE OF ZOOPLANKTON ON PHYTOPLANKTON ASSEMBLAGE IN LAKE QARUN, El - FAYOUM, EGYPT. Egyptian Journal of Aquatic Biology and Fisheries, 3(3), 81-92. doi: 10.21608/ejabf.1999.3429
Gamal EI-Shabrawy; Ola Taha. "EFFECT OF GRAZING PRESSURE OF ZOOPLANKTON ON PHYTOPLANKTON ASSEMBLAGE IN LAKE QARUN, El - FAYOUM, EGYPT". Egyptian Journal of Aquatic Biology and Fisheries, 3, 3, 1999, 81-92. doi: 10.21608/ejabf.1999.3429
EI-Shabrawy, G., Taha, O. (1999). 'EFFECT OF GRAZING PRESSURE OF ZOOPLANKTON ON PHYTOPLANKTON ASSEMBLAGE IN LAKE QARUN, El - FAYOUM, EGYPT', Egyptian Journal of Aquatic Biology and Fisheries, 3(3), pp. 81-92. doi: 10.21608/ejabf.1999.3429
EI-Shabrawy, G., Taha, O. EFFECT OF GRAZING PRESSURE OF ZOOPLANKTON ON PHYTOPLANKTON ASSEMBLAGE IN LAKE QARUN, El - FAYOUM, EGYPT. Egyptian Journal of Aquatic Biology and Fisheries, 1999; 3(3): 81-92. doi: 10.21608/ejabf.1999.3429
EFFECT OF GRAZING PRESSURE OF ZOOPLANKTON ON PHYTOPLANKTON ASSEMBLAGE IN LAKE QARUN, El - FAYOUM, EGYPT
National Institute of Occanography and Fisheries Fish Garden, Algae Lab., Zamalek, Cairo, Egypt
Abstract
Lake Qarun is an inland closed saline basin, used as a reservoir for agriculture drainage water. The Zooplank – Phytoplankton- interface was studied through 3 in situ experiments.The major conclusion that can be drawn from this study is that zooplankton play a major role in regulation of phytoplaukton biomass in lake Qarun during Summer. The grazing pressure of zoopiankton was mainly on the nano & pico phytoplanktonic fraction. Brachionus plicatilis was reported to ‘feed exclusively on Niizschia sigtna and N. frustulum var. perpnsilla.
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