Summer phytoplankton composition in the neurotic waters of the sea of Marmara [Turkey]
2004
Balkis, N. | Ergor, B. (Istanbul Univ. (Turkey). Dept. of Biology) | Giresunlu, M.
Summer phytoplankton species were investigated in the Sea of Marmara between 1993-1995. The samples were collected in the months of June-Aug. from the subsurface (0.5 m) with a 55 mum net at 52 stations. A total of 102 phytoplankton species were identified. Of these, 19 species two of them at the generic level, are new to the region. Diatoms and dinoflagellates were present throughout the sampling period and diatoms represented the majority of the population (46.08%), followed by dinoflagellates (44.12%). The others formed only 9.8% of the whole population. The genera Protoperidinium, Ceratium and Chaetoceros were dominant in terms of diversity. Primary hydrographical observations like salinity, temperature and dissolved oxygen were recorded on each sampling occasion. The species number of phytoplankton was negatively correlated to salinity (r = -0.33, p less than 0.05). The other parameters did not appear to play any role with the species number. Salinity was positively correlated to temperature (r = 0.64, p less than 0.05) and negatively to dissolved oxygen (r = -0.42, p less than 0.05). Furthermore, dissolved oxygen was negatively correlated to temperature (r = -0.30, p less than 0.05).
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