1. Seasonality of the dinoflagellate Amphidinium cf. carterae (Dinophyceae: Amphidiniales) in Bahía de la Paz, Gulf of California.
- Author
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Gárate-Lizárraga I, González-Armas R, Verdugo-Díaz G, Okolodkov YB, Pérez-Cruz B, and Díaz-Ortíz JA
- Subjects
- Brazil, California, Diatoms, Eutrophication, Phytoplankton, Seasons, Temperature, Dinoflagellida
- Abstract
Monthly phytoplankton samples were collected from January 2013 to December 2015 at a fixed sampling site in Bahía de La Paz, Gulf of California. During this study 26 samplings were Amphidinium cf. carterae positive. The highest densities of A. cf. carterae (754.2 × 10
3 to 1022.4 × 103 cells L-1 ) were recorded during a bloom detected in January 2015 when water temperatures were 20-22 °C. This dinoflagellate showed a well-marked seasonal variation, being found mainly from November to April. Blooms of the species were linked to the upwelled water due to the northwesterly wind. Cysts surrounded by a mucilaginous membrane of A. cf. carterae were found. We also observed these hyaline cysts inside zooplankton fecal pellets. Other benthic/tychoplanktonic dinoflagellates and diatoms, including some potentially toxic species were also found. The occurrence of blooms of A. cf. carterae in Bahía de La Paz could represent a risk for aquaculture activities and human health., (Copyright © 2019. Published by Elsevier Ltd.)- Published
- 2019
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