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No. de sistema: 000059846

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040 _ _ a| ECO
c| ECO
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100 1 _ a| Hernández Avila, Iván
e| autor
245 1 0 a| Testing marine regional-scale hypotheses along the Yucatan continental shelf using soft-bottom macrofauna
506 _ _ a| Acceso en línea sin restricciones
520 1 _ a| Different hypotheses related to the regional-scale configuration of the Yucatan Continental Shelf (YCS) between the Gulf of Mexico (GoM) and the Caribbean Sea have been proposed. Hypotheses regarding its regional boundaries include: (i) an ecoregional boundary at Catoche Cape, dividing the Western Caribbean and the Southern GoMecoregions; and (ii) a boundary within the Southern GoM ecoregion at 89ºW, separating the West and Mid-Yucatan areas. We tested the hypothesis of no variation in benthic macrofaunal assemblages between regions delimited by the former boundaries using the species and functional traits of soft-bottom macrofauna. We considered that the depth and temporal environmental dynamics might interact with regional variations, generating complex benthic community patterns. The data were collected over fiveyears (2010–2012, 2015–2016) at 86 stations (N=1,017 samples, 10–270 m depth), comprising 1,327 species with 45 combinations of functional traits. The variation inspecies composition and functional trait assemblages were both consistent with the occurrence of three separate regions in the Yucatan Peninsula (West Yucatan, Mid-Yucatan and Western Caribbean). This regional configuration was consistent with changes in assemblage structure and depth zonation as well as temporal variation. Along with spatial and temporal variation, diversity diminished with depth and different regions exhibited contrasting patterns in this regard. Our results suggest that the spatialand temporal variation of soft-bottom macrofauna at YCS demonstrate the complex organization of a carbonate shelf encompassing different regions, which may represent transitional regions between the Caribbean and the GoM.
533 _ _ a| Reproducción electrónica en formato PDF
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Fauna marina
650 _ 4 a| Bentos
650 _ 4 a| Variación espacial
650 _ 4 a| Variación temporal
650 _ 4 a| Plataforma continental
651 _ 4 a| Yucatán (Península) (México)
651 _ 4 a| Golfo de México
651 _ 4 a| Caribe
700 1 _ a| Ocaña Borrego, Frank Alberto
e| autor
700 1 _ a| Pech Pool, Daniel Guadalupe
e| autor
773 0 _
t| PeerJ
g| No. 8:e8227 (2020), p. 1-28
x| 2167-8359
856 4 1 u| https://peerj.com/articles/8227/
z| Artículo electrónico
902 _ _ a| BG / MM
904 _ _ a| Febrero 2020
905 _ _ a| Artecosur
905 _ _ a| Biblioelectrónica
LNG eng
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Testing marine regional-scale hypotheses along the Yucatan continental shelf using soft-bottom macrofauna
Hernández Avila, Iván (autor)
Ocaña Borrego, Frank Alberto (autor)
Pech Pool, Daniel Guadalupe (autor)
Nota: Acceso en línea sin restricciones
Contenido en: PeerJ. No. 8:e8227 (2020), p. 1-28. ISSN: 2167-8359
No. de sistema: 59846
Tipo: Artículo
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Inglés

"Different hypotheses related to the regional-scale configuration of the Yucatan Continental Shelf (YCS) between the Gulf of Mexico (GoM) and the Caribbean Sea have been proposed. Hypotheses regarding its regional boundaries include: (i) an ecoregional boundary at Catoche Cape, dividing the Western Caribbean and the Southern GoMecoregions; and (ii) a boundary within the Southern GoM ecoregion at 89ºW, separating the West and Mid-Yucatan areas. We tested the hypothesis of no variation in benthic macrofaunal assemblages between regions delimited by the former boundaries using the species and functional traits of soft-bottom macrofauna. We considered that the depth and temporal environmental dynamics might interact with regional variations, generating complex benthic community patterns. The data were collected over fiveyears (2010–2012, 2015–2016) at 86 stations (N=1,017 samples, 10–270 m depth), comprising 1,327 species with 45 combinations of functional traits. The variation inspecies composition and functional trait assemblages were both consistent with the occurrence of three separate regions in the Yucatan Peninsula (West Yucatan, Mid-Yucatan and Western Caribbean). This regional configuration was consistent with changes in assemblage structure and depth zonation as well as temporal variation. Along with spatial and temporal variation, diversity diminished with depth and different regions exhibited contrasting patterns in this regard. Our results suggest that the spatialand temporal variation of soft-bottom macrofauna at YCS demonstrate the complex organization of a carbonate shelf encompassing different regions, which may represent transitional regions between the Caribbean and the GoM."


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