TY - JOUR
T1 - Dominance patterns in macroalgal and phytoplankton biomass under different nutrient loads in subtropical coastal lagoons of the SE Gulf of California
AU - Páez-Osuna, F.
AU - Piñón-Gimate, A.
AU - Ochoa-Izaguirre, M. J.
AU - Ruiz-Fernández, A. C.
AU - Ramírez-Reséndiz, G.
AU - Alonso-Rodríguez, R.
N1 - Funding Information:
We thank H. Bojórquez-Leyva and L.K. López-Aguiar for your support in the chemical analysis, M.C. Ramírez-Jauregui for bibliographic research. We also thank C. Suarez for preparing the maps. This work was supported by the CONACYT-SEMARNAT Project 2002-C01-0161 and the project CONACYT-UNAM 204818 (Fondo I0015). Thanks for the logistical help from the Instituto de Ciencias del Mar y Limnología, UNAM.
PY - 2013
Y1 - 2013
N2 - 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±34.6mgm-2) and during the rainy season for macroalgae at site 4 (296.0±82.4gm-2). Depending on the season, the phytoplankton biomass ranged between 40.0 and 791.7mgm-2 and the macroalgal biomass between 1 and 296.0gm-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.
AB - 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±34.6mgm-2) and during the rainy season for macroalgae at site 4 (296.0±82.4gm-2). Depending on the season, the phytoplankton biomass ranged between 40.0 and 791.7mgm-2 and the macroalgal biomass between 1 and 296.0gm-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.
KW - Coastal lagoon
KW - Gulf of California
KW - Limiting nutrient
KW - Macroalgal blooms
KW - Nutrient loads
UR - http://www.scopus.com/inward/record.url?scp=84888433141&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2013.09.048
DO - 10.1016/j.marpolbul.2013.09.048
M3 - Artículo
C2 - 24139642
SN - 0025-326X
VL - 77
SP - 274
EP - 281
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
IS - 1-2
ER -