Bibliographic Detail

Gárate-Lizárraga, I., Muñetón-Gómez, M.S., Pérez-Cruz, B. & Díaz-Ortíz, J.A., 2014

Gárate-Lizárraga, I., Muñetón-Gómez, M.S., Pérez-Cruz, B. & Díaz-Ortíz, J.A. (2014). Bloom of Gonyaulax spinifera (Dinophyceae: Gonyaulacales) in Ensenada de La Paz Lagoon, Gulf of California. CICIMAR Oceanides 29(1): 11-18.

During a sampling on 24 September 2012 in the coastal lagoon, Ensenada de La Paz, a small bloom of the dinoflagellate Gonyaulax spinifera was detected. Its abundance varied from 401 to 1342 × 103 cells L1. Cells of G. spinifera ranged from 34 to 50 m in length and 22 to 35 m in width (n = 30). Seawater temperature and salinity were 29 °C and 35.5, respectively. The species composition of the bloom was recorded. The phytoplankton community had high species richness, resulting from a mix of benthic and pelagic diatoms and dinoflagellates, as well as cyanobacteria that occurred with low frequency. This brief proliferation lasted around three hours and may have been caused by tidal water accumulation along the shore. Although G. spinifera is a producer of yessotoxin, no fish or invertebrates were apparently killed by this bloom, which was rapidly dispersed by tides and wind-forcing.


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