Experimental evaluation of rhodoliths as living substrata for infauna at the Abrolhos Bank, Brazil
Over large areas of the Brazilian continental shelf, coralline algal rhodoliths provide habitats with high community diversity. In order to understand the role of rhodoliths in structuring the poorly studied infauna of these habitats, we determined seasonal patterns of their size and shape related t...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | México |
| Institución: | UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA |
| Repositorio: | Ciencias Marinas |
| Idioma: | inglés |
| OAI Identifier: | oai:cienciasmarinas.com.mx:article/1221 |
| Acceso en línea: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1221 |
| Access Level: | acceso abierto |
| Palabra clave: | Abrolhos Marine National Park infauna coralline algae living rhodoliths Parque Nacional Marino de Abrolhos algas coralinas rodolitos vivos |
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| dc.title.none.fl_str_mv |
Experimental evaluation of rhodoliths as living substrata for infauna at the Abrolhos Bank, Brazil Evaluación experimental de rodolitos como sustratos vivos para la infauna en el Banco de Abrolhos, Brasil |
| title |
Experimental evaluation of rhodoliths as living substrata for infauna at the Abrolhos Bank, Brazil |
| spellingShingle |
Experimental evaluation of rhodoliths as living substrata for infauna at the Abrolhos Bank, Brazil de O Figueiredo, MA Abrolhos Marine National Park infauna coralline algae living rhodoliths Parque Nacional Marino de Abrolhos infauna algas coralinas rodolitos vivos |
| title_short |
Experimental evaluation of rhodoliths as living substrata for infauna at the Abrolhos Bank, Brazil |
| title_full |
Experimental evaluation of rhodoliths as living substrata for infauna at the Abrolhos Bank, Brazil |
| title_fullStr |
Experimental evaluation of rhodoliths as living substrata for infauna at the Abrolhos Bank, Brazil |
| title_full_unstemmed |
Experimental evaluation of rhodoliths as living substrata for infauna at the Abrolhos Bank, Brazil |
| title_sort |
Experimental evaluation of rhodoliths as living substrata for infauna at the Abrolhos Bank, Brazil |
| dc.creator.none.fl_str_mv |
de O Figueiredo, MA Santos-de Menezes, K Costa-Paiva, EM Paiva, PC Ventura, CRR |
| author |
de O Figueiredo, MA |
| author_facet |
de O Figueiredo, MA Santos-de Menezes, K Costa-Paiva, EM Paiva, PC Ventura, CRR |
| author_role |
author |
| author2 |
Santos-de Menezes, K Costa-Paiva, EM Paiva, PC Ventura, CRR |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
Abrolhos Marine National Park infauna coralline algae living rhodoliths Parque Nacional Marino de Abrolhos infauna algas coralinas rodolitos vivos |
| topic |
Abrolhos Marine National Park infauna coralline algae living rhodoliths Parque Nacional Marino de Abrolhos infauna algas coralinas rodolitos vivos |
| description |
Over large areas of the Brazilian continental shelf, coralline algal rhodoliths provide habitats with high community diversity. In order to understand the role of rhodoliths in structuring the poorly studied infauna of these habitats, we determined seasonal patterns of their size and shape related to the associated biota, and experimentally tested the influence of living substrata in the Abrolhos Archipelago marine protected area. Samples (n = 20) were randomly collected from a rhodolith bed using cores (~1.7 L) during three seasons of the year. Subsamples were sorted by grain size, dry weight, degree of thallus branching, and associated invertebrate taxa. Live and dead rhodoliths with invertebrates removed and control samples with invertebrates present (n = 6) were transplanted inside baskets into the bed to test substrate associations. Transplanted samples were compared with natural ones directly collected from the rhodolith bed after nearly three months. The most common rhodolith-forming species was Mesophyllum erubescens. Polychaetes were usually the dominant taxon, making up 63% of the total infauna. The most common infaunal species was the polychaete Exogone dispar. There was a general seasonal trend of a reduction in invertebrate abundance from autumn/winter to spring. Amphipods were dominant in autumn (70% of sample) but half as abundant in winter and spring when their population density was similar to that of polychaetes (49%). Ophiuroids and molluscs were less abundant (up to 1% and 5% of the total sample). Polychaete abundance was significantly lower in live than in dead transplanted rhodoliths, whereas amphipods showed no difference. Variation in infaunal abundances was related to variability in habitat heterogeneity due to changes in rhodolith size and shape resulting from changes in water turbulence. The calcareous thalli of rhodoliths not only build complex calcareous gravels but also affect community diversity providing a refuge for infaunal groups. |
| publishDate |
2007 |
| dc.date.none.fl_str_mv |
2007-12-04 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1221 10.7773/cm.v33i4.1221 |
| url |
https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1221 |
| identifier_str_mv |
10.7773/cm.v33i4.1221 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1221/1056 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Iniversidad Autónoma de Baja California |
| publisher.none.fl_str_mv |
Iniversidad Autónoma de Baja California |
| dc.source.none.fl_str_mv |
Ciencias Marinas; Vol. 33 No. 4 (2007); 427-440 Ciencias Marinas; Vol. 33 Núm. 4 (2007); 427-440 2395-9053 0185-3880 reponame:Ciencias Marinas instname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA instacron:UABC |
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UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA |
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UABC |
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UABC |
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Ciencias Marinas |
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Ciencias Marinas |
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1858176808881487872 |
| spelling |
Experimental evaluation of rhodoliths as living substrata for infauna at the Abrolhos Bank, BrazilEvaluación experimental de rodolitos como sustratos vivos para la infauna en el Banco de Abrolhos, Brasilde O Figueiredo, MASantos-de Menezes, KCosta-Paiva, EMPaiva, PCVentura, CRRAbrolhos Marine National Parkinfaunacoralline algaeliving rhodolithsParque Nacional Marino de Abrolhosinfaunaalgas coralinasrodolitos vivosOver large areas of the Brazilian continental shelf, coralline algal rhodoliths provide habitats with high community diversity. In order to understand the role of rhodoliths in structuring the poorly studied infauna of these habitats, we determined seasonal patterns of their size and shape related to the associated biota, and experimentally tested the influence of living substrata in the Abrolhos Archipelago marine protected area. Samples (n = 20) were randomly collected from a rhodolith bed using cores (~1.7 L) during three seasons of the year. Subsamples were sorted by grain size, dry weight, degree of thallus branching, and associated invertebrate taxa. Live and dead rhodoliths with invertebrates removed and control samples with invertebrates present (n = 6) were transplanted inside baskets into the bed to test substrate associations. Transplanted samples were compared with natural ones directly collected from the rhodolith bed after nearly three months. The most common rhodolith-forming species was Mesophyllum erubescens. Polychaetes were usually the dominant taxon, making up 63% of the total infauna. The most common infaunal species was the polychaete Exogone dispar. There was a general seasonal trend of a reduction in invertebrate abundance from autumn/winter to spring. Amphipods were dominant in autumn (70% of sample) but half as abundant in winter and spring when their population density was similar to that of polychaetes (49%). Ophiuroids and molluscs were less abundant (up to 1% and 5% of the total sample). Polychaete abundance was significantly lower in live than in dead transplanted rhodoliths, whereas amphipods showed no difference. Variation in infaunal abundances was related to variability in habitat heterogeneity due to changes in rhodolith size and shape resulting from changes in water turbulence. The calcareous thalli of rhodoliths not only build complex calcareous gravels but also affect community diversity providing a refuge for infaunal groups. En grandes zonas de la plataforma continental brasileña, los rodolitos de algas coralinas proveen hábitats de gran diversidad. Para entender el papel de los rodolitos en la estructura de la infauna, poco estudiada en estos hábitats, se describen las diferencias estacionales de su tamaño y forma en relación con la biota asociada, y se determinó experimentalmente la influencia del sustrato vivo en el área protegida marina del Archipiélago Abrolhos. Se tomaron muestras aleatorias (~1.7 L) del manto de rodolitos en tres épocas del año (n = 20), de las que se ordenaron submuestras por tamaño de grano, peso seco, grado de ramificación del talo y taxones de invertebrados asociados. Se trasplantaron rodolitos vivos y muertos sin invertebrados y muestras de control con invertebrados (n = 6) en canastas dentro de los mantos a fin de probar asociaciones con el sustrato. Las muestras trasplantadas se compararon con muestras naturales recogidas directamente del manto de rodolitos casi tres meses después. La especie formadora de rodolitos más común fue Mesophyllum erubescens. En general los poliquetos fueron las especies dominantes, contribuyendo con hasta 63% de toda la infauna. La especie infaunal más común fue el poliqueto Exogone dispar. Se observó una tendencia estacional decreciente en la abundancia de invertebrados de otoño/invierno a primavera. Aunque los anfípodos dominaron en otoño (70% de muestra), su abundancia se redujo a la mitad en invierno y primavera cuando su densidad de población resultó similar a la de los poliquetos (49%). Los ofiuroideos y moluscos fueron menos abundantes (hasta 1% y 5% de toda la muestra). La abundancia de poliquetos fue significativamente menor en los rodolitos trasplantados vivos que en los muertos, mientras que los anfípodos no mostraron diferencias. La variación en las abundancias de la infauna estuvo relacionada con la variabilidad en la heterogeneidad del hábitat debida a los cambios en el tamaño y la forma de los rodolitos, como resultado de cambios en la turbulencia del agua. Los talos de los rodolitos no sólo construyen depósitos calcáreos complejos sino que también afectan la diversidad de la comunidad proporcionando refugio a los grupos de la infauna.Iniversidad Autónoma de Baja California2007-12-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Article Artículo Arbitradoapplication/pdfhttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/122110.7773/cm.v33i4.1221Ciencias Marinas; Vol. 33 No. 4 (2007); 427-440Ciencias Marinas; Vol. 33 Núm. 4 (2007); 427-4402395-90530185-3880reponame:Ciencias Marinasinstname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIAinstacron:UABCenghttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/1221/1056info:eu-repo/semantics/openAccessoai:cienciasmarinas.com.mx:article/12212024-08-22T17:01:38Z |
| score |
15,808905 |