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Planktonic copepods of Bahía de la Ascensión, Caribbean Coast of México: a seasonal survey

Por: Suárez Morales, Eduardo. Doctor [autor/a].
Gasca, Rebeca [autor/a].
Tipo de material: Artículo impreso(a) Artículo impreso(a) Tema(s): Copépodos | Composición de la población | ZoogeografíaDescriptor(es) geográficos: Bahía de la Ascensión, Felipe Carrillo Puerto (Quintana Roo, México) Clasificación: AR/595.34 / S9 / 3 Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Crustaceana. volumen 69, número 2 (1996), páginas 161-174Número de sistema: 19629Resumen:
Inglés

The composition, abundance, and distribution of planktonic copepods collected at Bahia de la Ascension, on the east coast of the Yucatan Peninsula, were analyzed during all three climatic periods of a year cycle (August, 1990-July, 1991). Highest mean copepod abundance was observed during the "nortes" period (524 org. 100 m-3), lowest values occurred during the dry season (91 org. 100 m-3). A total of 35 copepod species were identified, the most abundant were Acartia lilljeborgii, A. spinata, Labidocera scotti and L. mirabilis. Salinity gradients were weak and were not considered a relevant factor of the local copepod distribution. Spatial distribution of copepod densities throughout the year seemed to be related to different climatic regimes. From cluster analysis (Canberra Index), three facies could be identified: a bay facies, a neritic facies, and a mixed or semi-neritic facies. Copepod distribution during the three seasons was variable and showed the seasonal intensity of the marine influence in the system and the effect of the winds regime in the local copepod community.
Lista(s) en las que aparece este ítem: Producción Rebeca Gasca
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The composition, abundance, and distribution of planktonic copepods collected at Bahia de la Ascension, on the east coast of the Yucatan Peninsula, were analyzed during all three climatic periods of a year cycle (August, 1990-July, 1991). Highest mean copepod abundance was observed during the "nortes" period (524 org. 100 m-3), lowest values occurred during the dry season (91 org. 100 m-3). A total of 35 copepod species were identified, the most abundant were Acartia lilljeborgii, A. spinata, Labidocera scotti and L. mirabilis. Salinity gradients were weak and were not considered a relevant factor of the local copepod distribution. Spatial distribution of copepod densities throughout the year seemed to be related to different climatic regimes. From cluster analysis (Canberra Index), three facies could be identified: a bay facies, a neritic facies, and a mixed or semi-neritic facies. Copepod distribution during the three seasons was variable and showed the seasonal intensity of the marine influence in the system and the effect of the winds regime in the local copepod community. eng

La composition, l'abondance et la distribution de copepodes planctoniques recueillis dans la baie d'Ascension, sur la cete est de la peninsule du Yucatan, ont ete analysees au cours des trois periodes climatiques d'un cycle annuel (aoet 1990-juillet 1991). L'abondance moyenne la plus elevee a ete observ?e durant la periode enortese (524 org. 100 m~3), les valeurs les plus basses pendant la saison seche (91 org. 100 m~3). Au total, 35 especes de copepodes ont ete identifiees, dont les plus abondantes etaient: A. lilljeborgii, A. spinata, Labidocera scotti et L. mirabilis. Les gradients de salinite etaient faibles et n'ont pas ete consideres comme un facteur significatif de la distribution des copepodes. La distribution spatiale des densites de copepodes sur l'annee a paru liee aux differents regimes climatiques. D'apres l'analyse de groupe (Indice Canberra), trois facies ont pu etre identifies: un facies de baie, un facies neritique et un facies mixte ou semi-neritique. La distribution des copepodes durant les trois saisons a ete variable et a montre l'intensite saisonniere de l'influence marine dans le systeme, ainsi que l'effet du regime des vents sur la communaute locale de copepodes. deu

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