EFECTO DE LA ZONA DEL MINIMO DE OXIGENO EN EL SEGUNDO MAXIMO DE CLOROFILA EN EL PACIFICO ORIENTAL TROPICAL MEXICANO
Field data collected during June 2005 were used to determine the relationship between the second fluorescence maximum (FMax), the top of the oxygen minimum zone (OMZ), and physical processes (coastal currents, eddies, and upwelling) in the northern region of the Eastern Tropical Pacific off Mexico (...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | México |
| Institución: | Universidad Autónoma de Nayarit |
| Repositorio: | Repositorio Institucional Aramara de la UAN |
| Idioma: | español |
| OAI Identifier: | oai:dspace.uan.mx:123456789/1725 |
| Acceso en línea: | http://dspace.uan.mx:8080/jspui/handle/123456789/1725 |
| Access Level: | acceso abierto |
| Palabra clave: | fluorescencia de clorofila zona del mínimo de oxígeno Pacífico nororiental tropical Corriente CosteraMexicana remolinos zona eufótica chlorophyll fluorescence oxygen minimum zone Eastern Tropical North Pacific Mexican Coastal Current eddies euphotic zon CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA [6] |
| Sumario: | Field data collected during June 2005 were used to determine the relationship between the second fluorescence maximum (FMax), the top of the oxygen minimum zone (OMZ), and physical processes (coastal currents, eddies, and upwelling) in the northern region of the Eastern Tropical Pacific off Mexico (ETPM). A recurrent second FMax was observed in the ETPM, which was formed only when the upper limit of the OMZ (9.0 µmol L–1) overlapped with the 1% downwelling blue irradiance depth (E d490). The presence of the second FMax increased the total integrated water column chlorophyll from 20% to 40%. The second FMax was absent from areas where oxygenated California Current Water (CCW) deepened the upper limit of the OMZ below 1% E d490. The poleward Mexican Coastal Current carried less oxygenated Subtropical Subsurface Water into the area, and enabled the formation of the second FMax. The variability of the second FMax driven by mesoscale physical processes was related to coastal upwelling and cyclonic eddies only in areas not influenced by CCW. |
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