Daily changes in winter phytoplankton density of Southern Black Sea (Sinop Bay)

In this study, short time series (daily) distribution of phytoplankton density was carried out at only one station of the Sinop Bay (South of Black Sea) between 21 January and 04 February 2005. Temperature and salinity were also measured in this study. During the research period, temperature and salinity in the Sinop Bay varied between 8.9-9.4 degrees C and 17.50-17.53 ppt, respectively. The cell densities of Dinophyceae and Bacillariphyceae varied between 00E+00-8.80E+04 cell L-1 and 8.80E+04-1.41E+05 cell L-1, respectively. The cell densities of other taxonomic groups (Cyanophyceae, Prymnesiophyceae, Dictyochophyceae ve Euglenophyceae) varied between 00E+00 and 3.30E+04 cell L-1. Contribution levels of Dinophyceae (% 9.13) and Bacillariphyceae (% 89.16) to total phytoplankton cell density were higher than those of the other taxonomic groups (% 1.71).