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Resumen del producto
Páez-Osuna, F., A., Piñón Gimate, M.J., Ochoa-Izaguirre, G., Ramírez-Reséndiz & R., Alonso-Rodríguez
(2013).
Dominance patterns in macroalgal and phytoplankton biomass under different nutrient loads in subtropical coastal lagoons from SE Gulf of California.
Marine Pollution Bulletin.
77(1-2): 274-281.
DOI: 10.1016/j.marpolbul.2013.09.048.
Dominance patterns in macroalgal and phytoplankton biomass under different nutrient loads in subtropical coastal lagoons from SE Gulf of California
Federico Páez-Osuna, Alejandra Piñón Gimate, M.J. Ochoa-Izaguirre, G. Ramírez-Reséndiz y R. Alonso-Rodríguez
Nine macroalgal blooms were studied in five coastal lagoons of the SE Gulf of California. The nutrientloads from point and diffuse sources were estimated in the proximity of the macroalgal blooms. Chlorophylla and macroalgal biomass were measured during the dry, rainy and cold seasons. Shrimp farmswere the main point source of nitrogen and phosphorus loads for the lagoons. High biomasses were foundduring the dry season for phytoplankton at site 6 (791.7 ± 34.6 mg m2) and during the rainy season formacroalgae at site 4 (296.0 ± 82.4 g m2). Depending on the season, the phytoplankton biomass rangedbetween 40.0 and 791.7 mg m2 and the macroalgal biomass between 1 and 296.0 g m2. The bulk biomass(phytoplankton + macroalgal) displayed the same tendency as the nutrient loads entering thecoastal lagoons. Phytoplankton and macroalgal biomass presented a significant correlation with theatomic N:P ratio.
Palabras clave: coastal lagoon; macroalgal blooms; Nutrient loads; Limiting nutrient; Gulf of California
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