Brachyuran Crabs (Decapoda) Associated with Rhodolith Beds: Spatio-Temporal Variability at Gran Canaria Island

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)...

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Main Authors: Clara Sánchez-Latorre, Raül Triay-Portella, Marcial Cosme, Fernando Tuya, Francisco Otero-Ferrer
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/12/6/223
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author Clara Sánchez-Latorre
Raül Triay-Portella
Marcial Cosme
Fernando Tuya
Francisco Otero-Ferrer
author_facet Clara Sánchez-Latorre
Raül Triay-Portella
Marcial Cosme
Fernando Tuya
Francisco Otero-Ferrer
author_sort Clara Sánchez-Latorre
collection DOAJ
description 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, <i>Nanocassiope melanodactylus,</i> 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 <i>Pilmunus</i> <i>hirtellus</i> was restricted to 25 m. Nevertheless, <i>Pisa carinimana</i> and <i>Achaeus</i> <i>cranchii</i> did not show any spatio-temporal pattern. In summary, this study demonstrated that two conspicuous crabs, <i>N. melanodactylus</i> and <i>P. hirtellus</i>, associated with rhodolith beds are bathymetrically segregated.
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spelling doaj.art-fcaf55406b1f4c4cb85af398b93a49762023-11-20T02:48:41ZengMDPI AGDiversity1424-28182020-06-0112622310.3390/d12060223Brachyuran Crabs (Decapoda) Associated with Rhodolith Beds: Spatio-Temporal Variability at Gran Canaria IslandClara Sánchez-Latorre0Raül Triay-Portella1Marcial Cosme2Fernando Tuya3Francisco Otero-Ferrer4Grupo en Biodiversidad y Conservación, IU-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Marine Scientific and Technological Park, Crta. Taliarte s/n, 35214 Telde, SpainGrupo en Ecología Marina Aplicada y Pesquerías, I-UNAT, Universidad de Las Palmas de Gran Canaria, Edificio Polivalente I, Parque Científico Tecnológico Campus Universitario de Tafira, 35017 Las Palmas de Gran Canaria, SpainGrupo en Biodiversidad y Conservación, IU-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Marine Scientific and Technological Park, Crta. Taliarte s/n, 35214 Telde, SpainGrupo en Biodiversidad y Conservación, IU-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Marine Scientific and Technological Park, Crta. Taliarte s/n, 35214 Telde, SpainGrupo en Biodiversidad y Conservación, IU-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Marine Scientific and Technological Park, Crta. Taliarte s/n, 35214 Telde, SpainCrustaceans 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, <i>Nanocassiope melanodactylus,</i> 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 <i>Pilmunus</i> <i>hirtellus</i> was restricted to 25 m. Nevertheless, <i>Pisa carinimana</i> and <i>Achaeus</i> <i>cranchii</i> did not show any spatio-temporal pattern. In summary, this study demonstrated that two conspicuous crabs, <i>N. melanodactylus</i> and <i>P. hirtellus</i>, associated with rhodolith beds are bathymetrically segregated.https://www.mdpi.com/1424-2818/12/6/223spatio-temporal patterncrabsdiversitymaërlAtlantic OceanCanary Islands
spellingShingle Clara Sánchez-Latorre
Raül Triay-Portella
Marcial Cosme
Fernando Tuya
Francisco Otero-Ferrer
Brachyuran Crabs (Decapoda) Associated with Rhodolith Beds: Spatio-Temporal Variability at Gran Canaria Island
Diversity
spatio-temporal pattern
crabs
diversity
maërl
Atlantic Ocean
Canary Islands
title Brachyuran Crabs (Decapoda) Associated with Rhodolith Beds: Spatio-Temporal Variability at Gran Canaria Island
title_full Brachyuran Crabs (Decapoda) Associated with Rhodolith Beds: Spatio-Temporal Variability at Gran Canaria Island
title_fullStr Brachyuran Crabs (Decapoda) Associated with Rhodolith Beds: Spatio-Temporal Variability at Gran Canaria Island
title_full_unstemmed Brachyuran Crabs (Decapoda) Associated with Rhodolith Beds: Spatio-Temporal Variability at Gran Canaria Island
title_short Brachyuran Crabs (Decapoda) Associated with Rhodolith Beds: Spatio-Temporal Variability at Gran Canaria Island
title_sort brachyuran crabs decapoda associated with rhodolith beds spatio temporal variability at gran canaria island
topic spatio-temporal pattern
crabs
diversity
maërl
Atlantic Ocean
Canary Islands
url https://www.mdpi.com/1424-2818/12/6/223
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