Dominance patterns in macroalgal and phytoplankton biomass under different nutrient loads in subtropical coastal lagoons of the SE Gulf of California.
Mar Pollut Bull
; 77(1-2): 274-81, 2013 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-24139642
Nine macroalgal blooms were studied in five coastal lagoons of the SE Gulf of California. The nutrient loads from point and diffuse sources were estimated in the proximity of the macroalgal blooms. Chlorophyll a and macroalgal biomass were measured during the dry, rainy and cold seasons. Shrimp farms were the main point source of nitrogen and phosphorus loads for the lagoons. High biomasses were found during the dry season for phytoplankton at site 6 (791.7±34.6 mg m(-2)) and during the rainy season for macroalgae at site 4 (296.0±82.4 g m(-2)). Depending on the season, the phytoplankton biomass ranged between 40.0 and 791.7 mg m(-2) and the macroalgal biomass between 1 and 296.0 g m(-2). The bulk biomass (phytoplankton+macroalgal) displayed the same tendency as the nutrient loads entering the coastal lagoons. Phytoplankton and macroalgal biomass presented a significant correlation with the atomic N:P ratio.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fitoplâncton
/
Alga Marinha
/
Poluentes Químicos da Água
País/Região como assunto:
Mexico
Idioma:
En
Revista:
Mar Pollut Bull
Ano de publicação:
2013
Tipo de documento:
Article
País de publicação:
Reino Unido