Species composition and bathymetric distribution of gorgonians (Anthozoa: Octocorallia) on the Southern Mexican Pacific coast
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad de Costa Rica
2013
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| _version_ | 1876446422952312832 |
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| author | Rosalinda Abeytia |
| author_facet | Rosalinda Abeytia |
| contents | Species composition and bathymetric distribution of gorgonians (Anthozoa: Octocorallia) on the Southern Mexican Pacific coast Rosalinda Abeytia Héctor M. Guzmán Odalisca Breedy Biología Abundance diversity Mexican Pacific gorgonians assemblages bathymetrical distribution Gorgonians are important components of coastal ecosystems, as they provide niches, natural compounds with medical applications and are used as bioindicators. Species composition and assemblage structure of gorgonians (Anthozoa: Octocorallia) were studied along a bathymetric profile in the Southern Mexican Pacific coast. Species composition was based on specimens collected within a depth range of 0-70m in 15 sites. The relative abundance of species was determined in six sites at four depths (5, 10, 20 and 25m) using three 10m 2 transects at each depth level. Twenty-seven species of gorgonians belonging to six genera and three families were registered. The species composition varied with depth: 11 species were distrib - uted between 0-25m depth, while 17 species were found between 40-70m depth interval. The shallow zone is characterized by a relatively large abundance of gorgonians, dominated by colonies of Leptogorgia cuspidata and L. ena. In contrast, the deepest zone was characterized by relatively low abundance of gorgonians, domi - nated by L. alba, the only species observed in both depth intervals. The similarity analysis showed differences in the composition and abundance of species by depth and site, suggesting that the main factor in determining the assemblage structure is depth. Results of this study suggest that the highest richness of gorgonian species in the study area may be located at depths of 40-70m, whereas the highest abundances are found between 5 and 10m depth. This study represents a contribution to the poorly known eastern Pacific gorgonian biota. Rev. Biol. Trop. 61 (3): 1157-1166. Epub 2013 September 01. 2013 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44930116013 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.3 Vol.61 |
| format | Artículo científico |
| id | redalyc_44930116013 |
| institution | Redalyc |
| language | en |
| publishDate | 2013 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Species composition and bathymetric distribution of gorgonians (Anthozoa: Octocorallia) on the Southern Mexican Pacific coast Rosalinda Abeytia Biología Abundance diversity Mexican Pacific gorgonians assemblages bathymetrical distribution Species composition and bathymetric distribution of gorgonians (Anthozoa: Octocorallia) on the Southern Mexican Pacific coast Rosalinda Abeytia Héctor M. Guzmán Odalisca Breedy Biología Abundance diversity Mexican Pacific gorgonians assemblages bathymetrical distribution Gorgonians are important components of coastal ecosystems, as they provide niches, natural compounds with medical applications and are used as bioindicators. Species composition and assemblage structure of gorgonians (Anthozoa: Octocorallia) were studied along a bathymetric profile in the Southern Mexican Pacific coast. Species composition was based on specimens collected within a depth range of 0-70m in 15 sites. The relative abundance of species was determined in six sites at four depths (5, 10, 20 and 25m) using three 10m 2 transects at each depth level. Twenty-seven species of gorgonians belonging to six genera and three families were registered. The species composition varied with depth: 11 species were distrib - uted between 0-25m depth, while 17 species were found between 40-70m depth interval. The shallow zone is characterized by a relatively large abundance of gorgonians, dominated by colonies of Leptogorgia cuspidata and L. ena. In contrast, the deepest zone was characterized by relatively low abundance of gorgonians, domi - nated by L. alba, the only species observed in both depth intervals. The similarity analysis showed differences in the composition and abundance of species by depth and site, suggesting that the main factor in determining the assemblage structure is depth. Results of this study suggest that the highest richness of gorgonian species in the study area may be located at depths of 40-70m, whereas the highest abundances are found between 5 and 10m depth. This study represents a contribution to the poorly known eastern Pacific gorgonian biota. Rev. Biol. Trop. 61 (3): 1157-1166. Epub 2013 September 01. 2013 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44930116013 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.3 Vol.61 |
| title | Species composition and bathymetric distribution of gorgonians (Anthozoa: Octocorallia) on the Southern Mexican Pacific coast |
| topic | Biología Abundance diversity Mexican Pacific gorgonians assemblages bathymetrical distribution |
| url | https://www.redalyc.org/articulo.oa?id=44930116013 |