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Synchronous blooms of the coccolithophore Emiliania huxleyi and three dinoflagellates in the Dardanelles (Turkish Straits System)

Published online by Cambridge University Press:  14 May 2008

Muhammet Turkoglu*
Affiliation:
Canakkale Onsekiz Mart University, Fisheries Faculty, Hydrobiology Department, Terzioglu Campus, 17100 Canakkale, Turkey
*
Correspondence should be addressed to: Muhammet TurkogluCanakkale Onsekiz Mart University Fisheries FacultyHydrobiology Department Terzioglu Campus 17100 CanakkaleTurkey email: mturkoglu@comu.edu.tr

Abstract

This study focuses on the synchronous blooms of the coccolithophore Emiliania huxleyi and three dinoflagellates Prorocentrum micans, Ceratium furca var. furca and Ceratium fusus var. seta observed between 7 June and 11 July 2003 in the Dardanelles. An analysis of the vertical distribution of the E. huxleyi population size with respect to various environmental parameters was discussed. Additionally, inorganic nutrients and phytoplankton interactions were investigated in relation to the bloom conditions and hydrography of the Dardanelles. The algal bloom started in nearby Izmit Bay (eastern end of the Sea of Marmara) in early June, then quickly spread through the Sea of Marmara and continued until mid-July. Thermal stratification was observed between different water masses at the time of sampling. During the bloom period, cell density of E. huxleyi ranged from 3.58 × 107 to 2.55 × 108 cells l−1 in the superficial layer. Prorocentrum micans was the second most-abundant species and the cell numbers ranged from 1.0 × 106 cells l−1 to 3.3 × 106 cells l−1. Other abundant species in this area included C. furca var. furca and C. fusus var. seta.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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