Relationship between dinoflagellate Alexandrium minutum (Halim) and environmental factors in Homa Lagoon (İzmir Bay)

Relationship between dinoflagellate Alexandrium minutum (Halim) and environmental factors in Homa Lagoon (İzmir Bay)

Dinçer Başdemir

Department of Hydrobiology, Faculty of Fisheries, Ege University, 35100, Bornova, İzmir, TURKEY

Abstract

Monthly water sampling was conducted in Homa Lagoon situated in Izmir Bay, Turkey, between December 2013 and November 2014 aiming to understand how Alexandrium minutum concentration changes due to Chlorophyll-a, nutrients such as nitrite, nitrate, ammonium, silicate, phosphate, and physical parameters like temperature, salinity, dissolved oxygen and pH. A. minutum concentration was highest in July at Station 4 and it was related to nitrate and phosphate concentrations mostly. No bloom of  A. minutum was observed during the study.

Keywords: Alexandrium minutum, nutrients, lagoon, nitrate, phosphate