Epibenthic megacrustaceans from the continental margin, slope and abyssal plain of the Southwestern Gulf of Mexico: Factors responsible for variability in species composition and diversity

Escobar, Elva; Gaytán-Caballero, Adriana; Legendre, Pierre

doi:10.1016/j.dsr2.2008.07.016

Cited by 24 publications

(9 citation statements)

References 41 publications

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“…Nematocarcinus exilis and Acanthephyra eximia Smith, 1884 were among the most abundant crustaceans on the middle-lower slope of the deep Catalan Sea (Cartes & Sardà 1992), while Benthesicymus spp. are frequently key components of the deep-sea Gulf of Mexico crustacean assemblage (Escobar-Briones et al 2008). Our results of ophiuroid prevalence on mid and lower slope depths confirmed previous local results (Frensel et al 2010) and a pattern already stated in several bathyal regions (Tyler 1980).…”

Section: Discussionsupporting

confidence: 91%

Megafaunal communities along a depth gradient on the tropical Brazilian continental margin

Costa

Braga

Martins

et al. 2015

Marine Biology Research

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The species composition, abundance and diversity patterns of the epibenthic megafauna and fish community from the tropical Brazilian continental margin were analysed based on 42 bottom trawls from the Campos Basin continental shelf and slope. Trawls were collected aboard R/V Gyre during autumn 2008 from depths of 13 to 2030 m. Overall, 452 species belonging to five main taxa were identified: teleosts (Actinopterygii) were represented by 196 species, crustaceans by 113 species and echinoderms by 108 species. These three groups contributed 92% to the 452 taxa. Several species (289) were recorded only once or twice, and the species accumulation curves showed no signs of being close to reaching asymptotic values. A tendency of increasing diversity and richness with depth was observed. Analysis of the trawls showed the existence of megafaunal assemblages significantly associated with depth and water mass. The shelf group (13-100 m) had subgroups associated with Coastal Water (CW) and South Atlantic Central Water (SACW). The upper-slope group (376-501 m) was found exclusively under the influence of SACW. The mid-and lower-slope group (978-2030 m) had two subgroups associated with the presence of Antarctic Intermediate Water and North Atlantic Deep Water. The 39 typifying species contributed 90% to the global similarity. Teleosts and squids greatly contributed to the within-group similarity over the shelf, while decapods, echinoids and galatheids contributed to the upper-slope assemblage. Deep-sea isopods and decapods mostly contributed to the mid-and lower-slope assemblages.

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Section: Discussionsupporting

confidence: 91%

Megafaunal communities along a depth gradient on the tropical Brazilian continental margin

Costa

Braga

Martins

et al. 2015

Marine Biology Research

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“…Los estudios que se ocupan de la macrofauna de fondos carbonatados son limitados y su enfoque principal es la diversidad asociada a los arrecifes de coral. Escobar-Briones et al (2008) realizaron un estudio en el banco de Campeche que identificó la familia de crustáceos perácaridos Cirolanidae y 8 familias de crustáceos decápodos (Galatheidae, Diogenidae, Paguridae, Calappidae, Leucosiidae, Parthenopidae, Goneplacidae y Xanthidae) en un intervalo de 48 a 156 m de profundidad. En zonas aledañas, como es el arrecife Alacranes, los estudios se han enfocado en peces (González y Arias, 2001), moluscos (Rice y Kornicker, 1962) y la langosta espinosa (Ríos et al, 2007).…”

Section: Introductionunclassified

Macrocrustáceos (Peracarida, Decapoda) de fondos carbonatados del sector occidental del banco de Campeche en el sur del golfo de México

Escobar-Briones¹,

Jiménez-Guadarrama²

2010

Rev.Mex.Biodiv.

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Resumen. Este estudio reconoce el número de familias, abundancia, diversidad biológica y distribución de las comunidades de macrocrustáceos asociadas a fondos carbonatados del sector occidental del banco de Campeche. Las muestras analizadas de fondos carbonatados provinieron de colectas realizadas a bordo del B/O Pelican de la Universidad de Louisiana con arrastres efectuados en un intervalo de 20 a 182 m de profundidad. Se identificaron 64 familias. El número de familias, la abundancia y diversidad biológica disminuyó con la profundidad. La distancia a los bancos y arrecifes determinan la variación en la riqueza de familias y la distribución de la asociación de macrocrustáceos. El banco de Campeche puede considerarse un hotspot de diversidad biológica marina para los macrocrustáceos asociados a fondos carbonatados.

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“…The analyses of the relation between environmental factors and benthic communities have been performed by means multivariate analysis; such statistical techniques indicate a wide tendency in the faunal composition and their association with the environmental factors (Soto et al 1999;Colloca et al 2003;De Léo and Pires-Vanin 2006;Lui et al 2007;Escobar-Briones et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Brachyuran soft-bottom assemblage from marine shallow waters in the southeastern Brazilian littoral

2010

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Epibenthic megacrustaceans from the continental margin, slope and abyssal plain of the Southwestern Gulf of Mexico: Factors responsible for variability in species composition and diversity

Cited by 24 publications

References 41 publications

Megafaunal communities along a depth gradient on the tropical Brazilian continental margin

Megafaunal communities along a depth gradient on the tropical Brazilian continental margin

Macrocrustáceos (Peracarida, Decapoda) de fondos carbonatados del sector occidental del banco de Campeche en el sur del golfo de México

Brachyuran soft-bottom assemblage from marine shallow waters in the southeastern Brazilian littoral

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