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Distribution and abundance of Hyperiid amphipods (Crustacea: peracarida) of the Mexican Caribbean sea, (August 1986)

Por: Gasca, Rebeca. Doctora [autor/a].
Suárez Morales, Eduardo [autor/a].
Tipo de material: Artículo impreso(a) Artículo impreso(a) Tema(s): Amphipoda | ZooplanctonDescriptor(es) geográficos: Quintana Roo (México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Caribbean Journal of Science. volumen 40, número 1 (2004), páginas 23-30. --ISSN: 0008-6452Número de sistema: 34301Resumen:
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Thirty four hyperiid amphipods were recorded from the analysis of epipelagic zooplankton samples (0-220 m) collected during an oceanographic cruise carried out in August, 1986 in the Mexican Caribbean Sea. Eight of these species (Scina stenopus, S. tullbergi, S. nana, S. wagleri atlantis, Phronimopsis spinifera, Phrosina semilunata, Primno brevidens, and P. latreillei), are new records in the Caribbean Sea. The most abundant species in the area were: Lestrigonus bengalensis (39.68% of total hyperiid numbers), Tetrathyrus forcipatus (14%), Eupronoe intermedia (7.14%), and Brachyscelus crusculum (3.56%). These are among the most common forms in the western Caribbean. The overall mean abundance of hyperiids (240 org./1000 m3) is low when compared with other western Atlantic areas like the Gulf of Mexico, but it is similar to values obtained in the oligotrophic waters of the western Caribbean. A Bray-Curtis similarity index analysis revealed three groups of stations that suggest a strong influence of the fully oceanic hyperiids even in areas relatively close to the coastline. This is attributed to the local current pattern and to the narrowness of the continental shelf along the Mexican Caribbean coast.
Lista(s) en las que aparece este ítem: Producción Rebeca Gasca
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Thirty four hyperiid amphipods were recorded from the analysis of epipelagic zooplankton samples (0-220 m) collected during an oceanographic cruise carried out in August, 1986 in the Mexican Caribbean Sea. Eight of these species (Scina stenopus, S. tullbergi, S. nana, S. wagleri atlantis, Phronimopsis spinifera, Phrosina semilunata, Primno brevidens, and P. latreillei), are new records in the Caribbean Sea. The most abundant species in the area were: Lestrigonus bengalensis (39.68% of total hyperiid numbers), Tetrathyrus forcipatus (14%), Eupronoe intermedia (7.14%), and Brachyscelus crusculum (3.56%). These are among the most common forms in the western Caribbean. The overall mean abundance of hyperiids (240 org./1000 m3) is low when compared with other western Atlantic areas like the Gulf of Mexico, but it is similar to values obtained in the oligotrophic waters of the western Caribbean. A Bray-Curtis similarity index analysis revealed three groups of stations that suggest a strong influence of the fully oceanic hyperiids even in areas relatively close to the coastline. This is attributed to the local current pattern and to the narrowness of the continental shelf along the Mexican Caribbean coast. eng

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