TY - JOUR
T1 - Physicochemical factors related to Peridinium quadridentatum (F. Stein) Hansen (Dinophyceae) blooms and their effect on phytoplankton in Veracruz, Mexico
AU - Rodríguez-Gómez, Carlos F.
AU - Vázquez, Gabriela
AU - Aké-Castillo, José A.
AU - Band-Schmidt, Christine J.
AU - Moreno-Casasola, Patricia
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/12/15
Y1 - 2019/12/15
N2 - In order to identify the factors that promote harmful algal blooms (HABs) of Peridinium quadridentatum and their effects on the environment and the phytoplankton community in coasts of Veracruz, we conducted monthly monitoring from March 2016 to February 2017. Blooms of P. quadridentatum occurred during the rainy season, characterized by high surface temperatures and reduced salinity, associated with nutrient increase. The DIN/DIP ratio during P. quadridentatum blooms and the rest of the year indicated that the system is phosphorus limited. Regarding DIN, the high ammonia levels suggest that P. quadridentatum assimilates ammonia preferentially over nitrates. Higher chlorophyll-a concentrations and lower DO were related to P. quadridentatum HABs, in addition to lower species richness and diversity. Peridinium quadridentatum is a local resident species, and as a result of the hypoxic environmental conditions caused by the HABs, it represents a mortality risk for fish in the area.
AB - In order to identify the factors that promote harmful algal blooms (HABs) of Peridinium quadridentatum and their effects on the environment and the phytoplankton community in coasts of Veracruz, we conducted monthly monitoring from March 2016 to February 2017. Blooms of P. quadridentatum occurred during the rainy season, characterized by high surface temperatures and reduced salinity, associated with nutrient increase. The DIN/DIP ratio during P. quadridentatum blooms and the rest of the year indicated that the system is phosphorus limited. Regarding DIN, the high ammonia levels suggest that P. quadridentatum assimilates ammonia preferentially over nitrates. Higher chlorophyll-a concentrations and lower DO were related to P. quadridentatum HABs, in addition to lower species richness and diversity. Peridinium quadridentatum is a local resident species, and as a result of the hypoxic environmental conditions caused by the HABs, it represents a mortality risk for fish in the area.
KW - Algal blooms
KW - Dinoflagellates
KW - Environmental factors
KW - Littoral zone
KW - Marine ecology
KW - Mexico
KW - Phytoplankton
KW - Veracruz
KW - Veracruz reef system
UR - http://www.scopus.com/inward/record.url?scp=85074081235&partnerID=8YFLogxK
U2 - 10.1016/j.ecss.2019.106412
DO - 10.1016/j.ecss.2019.106412
M3 - Artículo
SN - 0272-7714
VL - 230
JO - Estuarine, Coastal and Shelf Science
JF - Estuarine, Coastal and Shelf Science
M1 - 106412
ER -
