Rocky reef fish assemblage structure in coastal islands of southern Brazil

ABSTRACT Within the Brazilian province, rocky reefs and submerged outcrops are among the most important habitats for reef fishes, providing suitable habitats for the development of reef fish communities and consequently sheltering a high ecological diversity. Rocky reef fish assemblages were sampled...

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Autores principales:	Daros,Felippe A., Bueno,Leonardo S., Soeth,Marcelo, Bertoncini,Áthila A., Hostim-Silva,Mauricio, Spach,Henry L.
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2018
Materias:	rocky reef fish taxonomic distinctness trophic category geographical distribution
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000100197
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spelling	oai:scielo:S0718-560X20180001001972018-04-17Rocky reef fish assemblage structure in coastal islands of southern BrazilDaros,Felippe A.Bueno,Leonardo S.Soeth,MarceloBertoncini,Áthila A.Hostim-Silva,MauricioSpach,Henry L. rocky reef fish taxonomic distinctness trophic category geographical distribution ABSTRACT Within the Brazilian province, rocky reefs and submerged outcrops are among the most important habitats for reef fishes, providing suitable habitats for the development of reef fish communities and consequently sheltering a high ecological diversity. Rocky reef fish assemblages were sampled in seven coastal islands in South Brazil by strip transects of 40 m2 by the underwater visual census to obtain density (fish 40 m-2) and biomass (g 40 m-2). Fish species were also categorized according to trophic category and geographical distribution. In total, 526 strip transects were performed, covering an area of 21,040 m2, providing 19,377 fish, distributed among 73 species of 34 families. Itacolomis Island presented the highest density, followed by Veado Island. Regarding biomass, Itacolomis Island and Pedra da Baleia were the most representative rocky reefs. Mobile invertebrate predator was the trophic category with the highest density and biomass. A total of 60% of the species occur in the Western Atlantic, 20% are Transatlantic and 9.6% are endemic to the Brazilian Province. Our results indicate that despite the similarity in the taxonomic composition among islands, the observed differences in densities and biomass, highlight singular assemblage structures, whether by environmental and/or anthropogenic factors, and dominated by few species, both in density and biomass.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.46 n.1 20182018-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000100197en10.3856/vol46-issue1-fulltext-19
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	rocky reef fish taxonomic distinctness trophic category geographical distribution
spellingShingle	rocky reef fish taxonomic distinctness trophic category geographical distribution Daros,Felippe A. Bueno,Leonardo S. Soeth,Marcelo Bertoncini,Áthila A. Hostim-Silva,Mauricio Spach,Henry L. Rocky reef fish assemblage structure in coastal islands of southern Brazil
description	ABSTRACT Within the Brazilian province, rocky reefs and submerged outcrops are among the most important habitats for reef fishes, providing suitable habitats for the development of reef fish communities and consequently sheltering a high ecological diversity. Rocky reef fish assemblages were sampled in seven coastal islands in South Brazil by strip transects of 40 m2 by the underwater visual census to obtain density (fish 40 m-2) and biomass (g 40 m-2). Fish species were also categorized according to trophic category and geographical distribution. In total, 526 strip transects were performed, covering an area of 21,040 m2, providing 19,377 fish, distributed among 73 species of 34 families. Itacolomis Island presented the highest density, followed by Veado Island. Regarding biomass, Itacolomis Island and Pedra da Baleia were the most representative rocky reefs. Mobile invertebrate predator was the trophic category with the highest density and biomass. A total of 60% of the species occur in the Western Atlantic, 20% are Transatlantic and 9.6% are endemic to the Brazilian Province. Our results indicate that despite the similarity in the taxonomic composition among islands, the observed differences in densities and biomass, highlight singular assemblage structures, whether by environmental and/or anthropogenic factors, and dominated by few species, both in density and biomass.
author	Daros,Felippe A. Bueno,Leonardo S. Soeth,Marcelo Bertoncini,Áthila A. Hostim-Silva,Mauricio Spach,Henry L.
author_facet	Daros,Felippe A. Bueno,Leonardo S. Soeth,Marcelo Bertoncini,Áthila A. Hostim-Silva,Mauricio Spach,Henry L.
author_sort	Daros,Felippe A.
title	Rocky reef fish assemblage structure in coastal islands of southern Brazil
title_short	Rocky reef fish assemblage structure in coastal islands of southern Brazil
title_full	Rocky reef fish assemblage structure in coastal islands of southern Brazil
title_fullStr	Rocky reef fish assemblage structure in coastal islands of southern Brazil
title_full_unstemmed	Rocky reef fish assemblage structure in coastal islands of southern Brazil
title_sort	rocky reef fish assemblage structure in coastal islands of southern brazil
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000100197
work_keys_str_mv	AT darosfelippea rockyreeffishassemblagestructureincoastalislandsofsouthernbrazil AT buenoleonardos rockyreeffishassemblagestructureincoastalislandsofsouthernbrazil AT soethmarcelo rockyreeffishassemblagestructureincoastalislandsofsouthernbrazil AT bertonciniathilaa rockyreeffishassemblagestructureincoastalislandsofsouthernbrazil AT hostimsilvamauricio rockyreeffishassemblagestructureincoastalislandsofsouthernbrazil AT spachhenryl rockyreeffishassemblagestructureincoastalislandsofsouthernbrazil
_version_	1714205196208308224

Rocky reef fish assemblage structure in coastal islands of southern Brazil

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