Abundancia y diversidad de la comunidad Fito planctónica, en relación con factores ambientales de la bahía de Acapulco, guerrero. México

Abstract

Phytoplankton community species composition and abundance over time in Acapulco Bay, Mexico, were quantified from September 2009- April 2010, JanuaryApril and September 2011 to April-July and October and November 2012. Phytoplankton was taken at 2 stations, morro San Lorenzo and casa Díaz Ordaz. A total of 99 species were identified: 50 dinoflagellates, 40 diatoms, 4 cyanobacterias, 2 silicoflagellates, 2 chlorophytas and 1 charophyta. The dinoflagellate dominated during the rainy season and the diatoms dominated during the dry season. At least 7 potentially toxic dinoflagellate species were recorded which could generate harmful algal blooms (HABs) if bay environmental conditions are altered. In April 2012 an AB of Neoceratium balechii nontoxic species was recorded. The phytoplankton community proved to be a good indicator of environmental change in the Bay of Acapulco and its continuous monitoring is recommended as a way to detect changes in environmental quality of the bay