Diversity of soft-bottom macroinvertebrates from the continental shelf off Jalisco and Colima, Mexico

Diversity of soft-bottom macroinvertebrates from the continental shelf off Jalisco and Colima, Mexico

Three cruises (DEM I, II and III) were conducted along the coast of Jalisco and Colima (Mexico) during three hydroclimatic seasons, defined by the pattern of the surface currents. Trawl samples were taken at seven sites along the coastline and four bathymetric levels (20, 40, 60 and 80 m). During th...

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Autores principales: Godínez-Domínguez, E, González-Sansón, G
Formato: Online
Idioma:eng
Publicado: Iniversidad Autónoma de Baja California 1999
Acceso en liña:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/723
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spelling oai:cienciasmarinas.com.mx:article-7232019-05-16T19:45:04Z Diversity of soft-bottom macroinvertebrates from the continental shelf off Jalisco and Colima, Mexico Diversidad de macroinvertebrados de fondos blandos de la plataforma continental de Jalisco y Colima, México Godínez-Domínguez, E González-Sansón, G diversity index invertebrates benthos tropical Pacific índice de diversidad invertebrados bentos Pacífico tropical Three cruises (DEM I, II and III) were conducted along the coast of Jalisco and Colima (Mexico) during three hydroclimatic seasons, defined by the pattern of the surface currents. Trawl samples were taken at seven sites along the coastline and four bathymetric levels (20, 40, 60 and 80 m). During the three cruises, 170 invertebrate species were identified. The crab Portunus xantusii affinis was the most abundant species: 62.6% during DEM I, 26.8% during DEM II and 42% during DEM III. The diversity (H′) estimated was moderate to low, of 1.93, 2.62 and 2.39 for the three cruises, respectively. No significant differences in diversity were observed among the three cruises and the differences in diversity among depths were only significant during DEM I. The minimum sample sizes for diversity and richness indicate that at least 20,422 organisms are needed to estimate diversity and 34,476 for richness. Se realizaron tres cruceros (DEM I, II y III) durante las tres estaciones hidroclimáticas existentes en la costa sur de Jalisco y norte de Colima (México), determinadas de acuerdo con los patrones de circulación marina. Se seleccionaron siete sitios de muestreo a lo largo de la costa y cuatro estratos batimétricos (20, 40, 60 y 80 m). Las muestras se recolectaron con redes de arrastre tipo camaronero. Se identificaron durante los tres cruceros un total de 170 especies de invertebrados. La jaiba Portunus xantusii affinis fue la más abundante: 62.6% en DEM I, 26.8% en DEM II y 42% en DEM III. La diversidad media estimada (H′) se considera de moderada a baja, de 1.93, 2.62 y 2.39 para los tres cruceros, respectivamente. No se observaron diferencias significativas en la diversidad entre los cruceros y las diferencias de la diversidad entre profundidades sólo fueron significativas en el crucero DEM I. Los tamaños mínimos de muestra tanto para la diversidad como para la riqueza, a partir de la acumulación de muestras, indica que al menos se requiere 20,422 individuos en el caso de la diversidad y 34,476 para riqueza. Iniversidad Autónoma de Baja California 1999-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/723 10.7773/cm.v25i4.723 Ciencias Marinas; Vol. 25 No. 4 (1999); 609-627 Ciencias Marinas; Vol. 25 Núm. 4 (1999); 609-627 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/723/650
institution Ciencias Marinas
collection OJS
language eng
format Online
author Godínez-Domínguez, E
González-Sansón, G
spellingShingle Godínez-Domínguez, E
González-Sansón, G
Diversity of soft-bottom macroinvertebrates from the continental shelf off Jalisco and Colima, Mexico
author_facet Godínez-Domínguez, E
González-Sansón, G
author_sort Godínez-Domínguez, E
title Diversity of soft-bottom macroinvertebrates from the continental shelf off Jalisco and Colima, Mexico
title_short Diversity of soft-bottom macroinvertebrates from the continental shelf off Jalisco and Colima, Mexico
title_full Diversity of soft-bottom macroinvertebrates from the continental shelf off Jalisco and Colima, Mexico
title_fullStr Diversity of soft-bottom macroinvertebrates from the continental shelf off Jalisco and Colima, Mexico
title_full_unstemmed Diversity of soft-bottom macroinvertebrates from the continental shelf off Jalisco and Colima, Mexico
title_sort diversity of soft-bottom macroinvertebrates from the continental shelf off jalisco and colima, mexico
description Three cruises (DEM I, II and III) were conducted along the coast of Jalisco and Colima (Mexico) during three hydroclimatic seasons, defined by the pattern of the surface currents. Trawl samples were taken at seven sites along the coastline and four bathymetric levels (20, 40, 60 and 80 m). During the three cruises, 170 invertebrate species were identified. The crab Portunus xantusii affinis was the most abundant species: 62.6% during DEM I, 26.8% during DEM II and 42% during DEM III. The diversity (H′) estimated was moderate to low, of 1.93, 2.62 and 2.39 for the three cruises, respectively. No significant differences in diversity were observed among the three cruises and the differences in diversity among depths were only significant during DEM I. The minimum sample sizes for diversity and richness indicate that at least 20,422 organisms are needed to estimate diversity and 34,476 for richness.
publisher Iniversidad Autónoma de Baja California
publishDate 1999
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/723
_version_ 1715724002992848896

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