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Título del libro: Deep-Sea Pycnogonids And Crustaceans Of The Americas
Título del capítulo: Deep-Sea Megacrustacean Biodiversity (Crustacea, Decapoda) in the South Gulf of Mexico

Autores UNAM:
ANA ROSA VAZQUEZ BADER;
Autores externos:

Idioma:

Año de publicación:
2021
Palabras clave:

Bathymetric ranges; Distribution; Diversity; Megacrustacean


Resumen:

One hundred sixty-eight crustacean species were identified in a study of the deep-sea benthic megafauna conducted along the upper continental slope (300-1200 m depth) of the Mexican Gulf of Mexico. A total of 18 cruises were conducted on board the R/V Justo Sierra of the Universidad Nacional Autonoma de Mexico from off Tamaulipas to Yucatan. Samples were obtained with a commercial shrimp trawl net (18 m mouth aperture, 4.5 cm stretched mesh, 1.5 cm stretched mesh cod-end). The Decapoda were the dominant taxa and comprised 46 families, 94 genera, and 162 species. Three species of Lophogastrida and two genera with one species each of Stomatopoda were also encountered. The records of the only genus and species of Isopoda, Bathynomus giganteus, extended its geographical range. Comparing families, Munidopsidae was the most speciose (20), followed by the Pandalidae (11), Acanthephyridae (9), Munididae (9), Oplophoridae (7), and Paguridae (7). The rest of the families were only presented a low number of species (< 5). The south-southwest sector of the Gulf of Mexico exhibited the highest richness and abundance. For several species extensions of their bathymetrical and geographical ranges were recorded. The faunal composition in the southern Gulf of Mexico showed differences compared to northern region. © Springer Nature Switzerland AG 2020. All rights reserved.


Entidades citadas de la UNAM: