|Nutrient loading and occurrence of potentially harmful phytoplankton species in the North Lake of Tunis (Tunisia)|
Turki, S. (2008). Nutrient loading and occurrence of potentially harmful phytoplankton species in the North Lake of Tunis (Tunisia). Cah. Biol. Mar. 49(4): 311-321
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094
Potentially Harmful Phytoplankton, North Lake of Tunis
In the frame of a monitoring program, a systematic water sampling was carried out in different sites in the North Lake of Tunis. Sampling was performed twice a month from September 2005 to September 2006. The phytoplankton community was generally dominated by dinoflagellates or diatoms. During this annual cycle, the main results were: the detection of many potentially harmful species such as Pseudo-nitzschia spp., Dinophysis spp., Alexandrium spp., Prorocentrum spp. , Gyrodinium spp. and Coolia monotis. The presence o.f sorne of them, like Dinophysis sacculus and Gyrodinium spirale, was observed ali around the year,'