Distribución de los pterópodos (Gastropoda: Thecosomata y Pseudothecosomata) del Golfo de México y zonas adyacentes
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Autores
Suárez M., Eduardo
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Universidad de Costa Rica
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Una lista de 51 especies y formas subespecíficas de moluscos pterópodos se ha compilado a partir de los antecedentes en la literatura y de observaciones de campo en el Golfo de México, la Corriente de Florida y el Mar Caribe. Se presenta la distribución batimétrica, la afinidad biogeográfica y ecológica y los registros zoogeográficos de cada especie. La fauna regional de pterópodos es predominantemente de tipo tropical, superficial y con elementos comunes en aguas neríticas y oceánicas. Al considerar todas las especies registradas en el Atlántico Noroccidental, solamente el 62% se han encontrado en el sur del Golfo de México, 10 que evidencia la falta de estudios sobre este grupo en esta zona y un posible submuestreo de este grupo en estratos inferiores a los 200m de profundidad.
A checklist of 51 pteropod species and lower taxa has been compiled from the literature about pteropod moUuscs throughout the Gulf of Mexico, the Florida Current and the Caribbean Sea, and from field observations. Bathymetric distribution, biogeographic and ecologic affinities and zoogeographic records are presented for each species. The pteropod fauna of the Gulf of Mexico -Caribbean Sea area is mainly tropical, inhabits surface waters and has elements Gommon to both neritic and oceanic zones. Considering all the species reported in the Northwestern Tropical Atlantic, only 62% have been coUected from the southern Gulf of Mexico, which reflects the paucity of studies in this zone and a possible undersampling of the group in subsurface strata, below 2 00m.
A checklist of 51 pteropod species and lower taxa has been compiled from the literature about pteropod moUuscs throughout the Gulf of Mexico, the Florida Current and the Caribbean Sea, and from field observations. Bathymetric distribution, biogeographic and ecologic affinities and zoogeographic records are presented for each species. The pteropod fauna of the Gulf of Mexico -Caribbean Sea area is mainly tropical, inhabits surface waters and has elements Gommon to both neritic and oceanic zones. Considering all the species reported in the Northwestern Tropical Atlantic, only 62% have been coUected from the southern Gulf of Mexico, which reflects the paucity of studies in this zone and a possible undersampling of the group in subsurface strata, below 2 00m.
Palabras clave
zooplankton, gastropoda, pteropoda, gulf of Mexico, distribution, biogeography