Occurrence of a subsurface anticyclonic eddy, fronts, and Trichodesmium spp.

Occurrence of a subsurface anticyclonic eddy, fronts, and Trichodesmium spp.

Eddies and fronts created by geostrophic balance between counter-rotating currents are hydrodynamic processes that concentrate or dilute plankton and suspended material by physical processes of accumulation, retention, or dispersion. Over Campeche Canyon, in the southern Gulf of Mexico, observations...

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Autores principales: Aldeco-Ramírez, J, Monreal-Gómez, MA, Signoret, M, Salas-de-León, DA, Hernández-Becerril, DU
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2009
Materias:
anticyclonic eddy
fronts
Trichodesmium
Campeche Canyon
Gulf of Mexico
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1551
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spelling repositorioinstitucional-20.500.12930-74242023-05-09T14:30:48Z Occurrence of a subsurface anticyclonic eddy, fronts, and Trichodesmium spp. Ocurrencia de un giro anticiclónico, frentes y Trichodesmium spp.sobre la región del Cañón de Campeche, Golfo de México Aldeco-Ramírez, J Monreal-Gómez, MA Signoret, M Salas-de-León, DA Hernández-Becerril, DU anticyclonic eddy fronts Trichodesmium Campeche Canyon Gulf of Mexico Eddies and fronts created by geostrophic balance between counter-rotating currents are hydrodynamic processes that concentrate or dilute plankton and suspended material by physical processes of accumulation, retention, or dispersion. Over Campeche Canyon, in the southern Gulf of Mexico, observations revealed an anticyclonic eddy, a cyclonic current off the continental shelf, and an associated thermal front in their common boundary. Along this front there was high Trichodesmium spp. occurrence. Three water masses were found in the upper 120 m layer: Caribbean Tropical Surface Water (CTSW), Caribbean Subtropical Underwater (CSUW), and Gulf Common Water (GCW). The frontal zone between the warm core and cyclonic circulation was observed below the hot summertime mixed layer. The presence of Trichodesmium spp. was associated with the front, indicating its influence on the distribution of this diazotrophic cyanobacterium that enters the Campeche Canyon region via modified CTSW. The associated phytoplankton was dominated by tropical oceanic species of diatoms and dinoflagellates, especially species of Ceratium.  Los giros y frentes creados por balance geostrófico entre corrientes que rotan en sentido contrario son procesos hidrodinámicos que concentran o diluyen plancton y material en suspensión mediante procesos físicos de acumulación, retención o dispersión. Sobre la región del Cañón de Campeche, en el sur del Golfo de México, se ha observado un giro anticiclónico, una corriente ciclónica frente a la plataforma continental y un frente térmico asociado que se presenta en la frontera común. A lo largo de este frente hay gran abundancia de Trichodesmium spp. En la capa superior de 120 m se identificó la presencia de tres masas de agua: Agua Tropical Superficial del Caribe (CTSW), Agua Subtropical Subsuperficial del Caribe (CSUW) y Agua Común del Golfo (GCW). La zona frontal entre el núcleo cálido y la circulación ciclónica se observó por debajo de la cálida capa de mezcla de verano. La mayor abundancia de Trichodesmium spp. estuvo asociada al frente que mostró su influencia sobre la distribución de esta cianobacteria diazotrófica que llega a la región del Cañón de Campeche como parte del CTSW modificada. El fitoplancton asociado estuvo dominado por especies oceánicas tropicales de diatomeas y dinoflagelados, particularmente especies del género Ceratium. 2009-12-08 2021-06-03T03:55:16Z 2021-06-03T03:55:16Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1551 10.7773/cm.v35i4.1551 https://hdl.handle.net/20.500.12930/7424 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1551/1781 application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 35 No. 4 (2009); 333-344 Ciencias Marinas; Vol. 35 Núm. 4 (2009); 333-344 2395-9053 0185-3880
institution Repositorio Institucional
collection DSpace
language eng
topic anticyclonic eddy
fronts
Trichodesmium
Campeche Canyon
Gulf of Mexico
spellingShingle anticyclonic eddy
fronts
Trichodesmium
Campeche Canyon
Gulf of Mexico
Aldeco-Ramírez, J
Monreal-Gómez, MA
Signoret, M
Salas-de-León, DA
Hernández-Becerril, DU
Occurrence of a subsurface anticyclonic eddy, fronts, and Trichodesmium spp.
description Eddies and fronts created by geostrophic balance between counter-rotating currents are hydrodynamic processes that concentrate or dilute plankton and suspended material by physical processes of accumulation, retention, or dispersion. Over Campeche Canyon, in the southern Gulf of Mexico, observations revealed an anticyclonic eddy, a cyclonic current off the continental shelf, and an associated thermal front in their common boundary. Along this front there was high Trichodesmium spp. occurrence. Three water masses were found in the upper 120 m layer: Caribbean Tropical Surface Water (CTSW), Caribbean Subtropical Underwater (CSUW), and Gulf Common Water (GCW). The frontal zone between the warm core and cyclonic circulation was observed below the hot summertime mixed layer. The presence of Trichodesmium spp. was associated with the front, indicating its influence on the distribution of this diazotrophic cyanobacterium that enters the Campeche Canyon region via modified CTSW. The associated phytoplankton was dominated by tropical oceanic species of diatoms and dinoflagellates, especially species of Ceratium. 
format info:eu-repo/semantics/article
author Aldeco-Ramírez, J
Monreal-Gómez, MA
Signoret, M
Salas-de-León, DA
Hernández-Becerril, DU
author_facet Aldeco-Ramírez, J
Monreal-Gómez, MA
Signoret, M
Salas-de-León, DA
Hernández-Becerril, DU
author_sort Aldeco-Ramírez, J
title Occurrence of a subsurface anticyclonic eddy, fronts, and Trichodesmium spp.
title_short Occurrence of a subsurface anticyclonic eddy, fronts, and Trichodesmium spp.
title_full Occurrence of a subsurface anticyclonic eddy, fronts, and Trichodesmium spp.
title_fullStr Occurrence of a subsurface anticyclonic eddy, fronts, and Trichodesmium spp.
title_full_unstemmed Occurrence of a subsurface anticyclonic eddy, fronts, and Trichodesmium spp.
title_sort occurrence of a subsurface anticyclonic eddy, fronts, and trichodesmium spp.
publisher Iniversidad Autónoma de Baja California
publishDate 2009
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1551
_version_ 1792609598598807552

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