Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/73659
Título: Brachyuran crabs (Decapoda) associated with rhodolith beds: Spatio-temporal variability at Gran Canaria Island
Autores/as: Sánchez-Latorre, Clara
Triay-Portella, Raül 
Cosme, Marcial
Tuya, Fernando 
Otero-Ferrer, Francisco 
Clasificación UNESCO: 310510 Dinámica de las poblaciones
240119 Zoología marina
Palabras clave: Atlantic Ocean
Canary Islands
Crabs
Diversity
Maërl, et al.
Fecha de publicación: 2020
Proyectos: Research And Technology To Enhance Excellence In Aquaculture Development Under An Ecosystem Approach 
Publicación seriada: Diversity 
Resumen: Crustaceans are a key component of the fauna living in rhodoliths, but patterns in their distribution and abundance remain largely unknown. This paper assessed spatio-temporal variability of Brachyura associated with rhodoliths. A seasonal study was conducted at three depth layers (18, 25, and 40 m), throughout two years (December 2015 to October 2017) at Gran Canaria Island (eastern Atlantic Ocean). A total of 765 crabs belonging to 10 species were collected. A larger abundance and richness of crabs at 25 m correlated with a larger biomass of epiphytic algae attached to rhodoliths. A seasonal pattern was also observed, where a higher richness of crabs occurred in the summer. The Xanthid crab, Nanocassiope melanodactylus, dominated the assemblage (83%); juveniles of this species were more abundant in deeper waters (40 m), while adults were more abundant on the shallower depth layers (18 m and 25 m). The species Pilmunus hirtellus was restricted to 25 m. Nevertheless, Pisa carinimana and Achaeus cranchii did not show any spatio-temporal pattern. In summary, this study demonstrated that two conspicuous crabs, N. melanodactylus and P. hirtellus, associated with rhodolith beds are bathymetrically segregated.
URI: http://hdl.handle.net/10553/73659
ISSN: 1424-2818
DOI: 10.3390/D12060223
Fuente: Diversity [EISSN 1424-2818], v. 12 (6), 223 (Junio 2020)
Colección:Artículos
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