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Title: Phytoplankton community in the Egyptian Mediterranean coastal waters.
Authors: El Din, Nihal G.Shams
El Khair, Ehsan M. Abo
Dorgham, Mohamed M.
Keywords: Phytoplankton diversity;Phytoplankton abundance;Nutrients;Egyptian sea coast;Diversity indices
Issue Date: Oct-2014
Publisher: NISCAIR-CSIR, India
Abstract: Phytoplankton community was investigated quantitatively at three sectors along the Egyptian Mediterranean coast (Rosetta, Abu-Qir and Eastern Harbor) during winter, spring and summer 2008-2009.   Phytoplankton count reported wide temporal and spatial variability between a minimum of 72 units/l and a maximum of 5.77x106 units/l. Chlorophyceae and Bacillariophyceae were the main components. More than 207 phytoplankton species were identified, but a few only demonstrated active contribution to total standing crop, such as the green algae Carteria sp. and marine Chlorella vulgaris, the diatoms Asterionella glacialis, Cylindrotheca closterium, Melosira granulata, Navicula cryptocephala, Pseudo-Nitzschia palea, Pseudo-Nitzschia sigma, Pseudo-Nitzschia delicatissima, Skeletonema costatum, and the dinoflagellate  Gonyaulax spp.. Spring was characterized by the lowest plankton density along the whole area, with a minimum of 317units/l off Rosetta Sector, and summer sustained the highest phytoplankton count (2.075 x 106 units/l) also at Rosetta Sector. The species diversity of phytoplankton community was quite high, being the most diversified (117 species) off Rosetta. Shannon index sustained values mostly less than 2, except off Rosetta during summer (2 -2.94 nats).
Page(s): 1981-1988
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.43(10) [October 2014]

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