Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico.

Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico.

 Four surveys (October 2001, and January, April and June 2002) were conducted at nine sites around the Espíritu Santo Archipelago, Baja California Sur, Mexico, to identify spatiotemporal variation patterns in the structure of the rocky, shallowbottom macroinvertebrate community. The abundan...

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Autores principales: González-Medina, FJ, Holguín-Quiñonez, OE, De la cruz-Agüero, G
Formato: Online
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2006
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/67
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spelling oai:cienciasmarinas.com.mx:article-672019-04-08T21:11:15Z Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico. Variación espaciotemporal de algunos macroinvertebrados (Gastropoda, Bivalvia y Echinodermata) de fondos someros del Archipiélago Espíritu Santo, Baja California Sur, México González-Medina, FJ Holguín-Quiñonez, OE De la cruz-Agüero, G structure community molluscs echinoderms archipelago estructura comunidad moluscos equinodermos archipiélago  Four surveys (October 2001, and January, April and June 2002) were conducted at nine sites around the Espíritu Santo Archipelago, Baja California Sur, Mexico, to identify spatiotemporal variation patterns in the structure of the rocky, shallowbottom macroinvertebrate community. The abundance of the conspicuous macrobenthos (gastropods, bivalves and echinoderms) was estimated visually by free diving at 4–6 m depth along two band-transects parallel to the coastline. Each transect was 5 m wide and 50 m long, covering an area of 500 m2 per site. Sea surface temperature, wave exposure, type of substrate and slope were also recorded. Thirty-two species were identified. The echinoderms were the best represented group, with 18 species from 13 families, followed by the molluscs, with 14 species from 13 families. The highest mean abundance and density values were recorded for Tripneustes depressus (140.25 ± 64.21 ind and 0.28 ind m–2, respectively). There were no significant differences indiversity, equitability and species richness among sampling months, though differences were found among sites (P < 0.05). A spatial diversity pattern was identified, with low values (0.4 bits ind–1) for exposed shores and high values (2.0 bits ind–1) for semi-protected areas. Se realizaron cuatro muestreos (octubre de 2001 y enero, abril y junio de 2002), en nueve localidades alrededor del Archipiélago Espíritu Santo, Baja California Sur, México, con el objetivo de identificar patrones de variación espaciotemporal en la estructura de la comunidad de macroinvertebrados de fondos someros, preferentemente rocosos. La abundancia del macrobentos conspicuo (gasterópodos, bivalvos y equinodermos) se estimó visualmente mediante buceo libre a una profundidadentre 4 y 6 m a lo largo de dos transectos en banda paralelos a la línea de costa. Cada transecto fue de 5 m de ancho y 50 m de largo, con una superficie total de 500 m2 por localidad. Asimismo, se registró la temperatura superficial del mar, la exposición al oleaje, la pendiente y el tipo de sustrato. Se identificaron 32 especies; el grupo mejor representado fue el de los equinodermos con 18 especies de 13 familias, seguido de los moluscos con 14 especies de 13 familias. La especie con mayores abundancia media y densidad fue Tripneustes depressus (140.25 ± 64.21 ind y 0.28 ind m–2, respectivamente). No se encontraron diferencias significativas en la diversidad, equidad y riqueza de especies entre los meses; sólo hubo diferencias entre las localidades (P < 0.05). Se identificó un patrón espacial en el archipiélago con niveles bajos (0.4 bits ind–1) de diversidad media en el litoral expuesto y altos (2.0 bits ind–1) en el semiprotegido. Iniversidad Autónoma de Baja California 2006-02-01 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/67 10.7773/cm.v32i1.67 Ciencias Marinas; Vol. 32 No. 1 (2006); 33-44 Ciencias Marinas; Vol. 32 Núm. 1 (2006); 33-44 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/67/49
institution Ciencias Marinas
collection OJS
language eng
format Online
author González-Medina, FJ
Holguín-Quiñonez, OE
De la cruz-Agüero, G
spellingShingle González-Medina, FJ
Holguín-Quiñonez, OE
De la cruz-Agüero, G
Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico.
author_facet González-Medina, FJ
Holguín-Quiñonez, OE
De la cruz-Agüero, G
author_sort González-Medina, FJ
title Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico.
title_short Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico.
title_full Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico.
title_fullStr Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico.
title_full_unstemmed Spatiotemporal variability of some shallow-bottom macroinvertebrates (Gastropoda, Bivalvia and Echinodermata) from Espritu Santo Archipelago, Baja California Sur, Mexico.
title_sort spatiotemporal variability of some shallow-bottom macroinvertebrates (gastropoda, bivalvia and echinodermata) from espritu santo archipelago, baja california sur, mexico.
description  Four surveys (October 2001, and January, April and June 2002) were conducted at nine sites around the Espíritu Santo Archipelago, Baja California Sur, Mexico, to identify spatiotemporal variation patterns in the structure of the rocky, shallowbottom macroinvertebrate community. The abundance of the conspicuous macrobenthos (gastropods, bivalves and echinoderms) was estimated visually by free diving at 4–6 m depth along two band-transects parallel to the coastline. Each transect was 5 m wide and 50 m long, covering an area of 500 m2 per site. Sea surface temperature, wave exposure, type of substrate and slope were also recorded. Thirty-two species were identified. The echinoderms were the best represented group, with 18 species from 13 families, followed by the molluscs, with 14 species from 13 families. The highest mean abundance and density values were recorded for Tripneustes depressus (140.25 ± 64.21 ind and 0.28 ind m–2, respectively). There were no significant differences indiversity, equitability and species richness among sampling months, though differences were found among sites (P < 0.05). A spatial diversity pattern was identified, with low values (0.4 bits ind–1) for exposed shores and high values (2.0 bits ind–1) for semi-protected areas.
publisher Iniversidad Autónoma de Baja California
publishDate 2006
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/67
_version_ 1715723930570850304

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