Distribution of recent calcareous nannofossils in bottom sediments from gokceada-bozcaaa-dardanelles triangle

Abstract EN

Twenty-nine species of 12 calcareous nannoplankton genera have been recognized in an investigation of 100 surface samples from Gokceada-Bozcaada-Dardanelles triangle in the northeastern Aegean Sea.

Emiliana huxleyi (Lohmann) is the dominant species; the diversity of nannofossils increases proportionally with water depth, salinity, and temperature from the Dardanelles to the Aegean Sea.

In the studied area, subtropical-warm species exceed those of the subtropical-cool regime.

Coccolithus pelagicus (Wallich) and Gephyrocapsa caribbeanica Boudreaux and Hay, which represent the subtropical-cool waters, display an increase in abundances at the exit of Dardanelles.

In contrast, Gephyrocapsa oceanica Kamptner and Syracosphaerapulchra Lohmann, which represent the subtropical-warm waters, display an increase in abundance away from the exit of Dardanelles to the Aegean Sea