Influence of a shipwreck on a nearshore-reef fish assemblages off the coast of Rio de Janeiro, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da Produção Científica da Marinha do Brasil (RI-MB) |
Texto Completo: | http://www.redebim.dphdm.mar.mil.br/vinculos/00000f/00000f2a.pdf http://www.repositorio.mar.mil.br/handle/ripcmb/844054 |
Resumo: | The effect of the Orion shipwreck on fish assemblage distribution near the reef was studied to the northeast of Rio de Janeiro with six different fishing gears: gillnets, mid-water longlines, circular traps, rectangular traps, vertical longlines, and bottom trawling. The study consisted of a pre-monitoring survey four months before the shipwreck in the area (A) and in two control areas (B and C). After 36 months, a total of 56 species were caught in the Orion reef area, 49 in control area B and 59 in control area C. The similarity analysis, considering the number of fish caught during the nine surveys in the three study areas, clustered the pre-monitoring and first post-settlement surveys of the three sites. This occurred due to the low number of fish captured and the dominance of Trichiurus lepturus and Lagocephalus laevigatus . These results differed from all the other studies in the three areas due to the co-dominance of Ctenosciaena gracilicirrhus and Stephanolepis hispidus . Such spatial similarity shows the low influence of the Orion reef in the area after three years. Biomass values were 15% higher in the Orion reef area than in the control areas, representing an increase of up to 1.2 times in wet weight. The increment of fish communities is still insufficient for proposing sustainable fishery activity in the shipwreck area. The monitoring time (32 months) after the sinking of the Orion may be considered too short to assure that the wreck age had reached its maturity as an artificial reef, either as a fish attractor or producer. |
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Fagundes Netto, Eduardo Barros.Gaelzer, Luiz Ricardo.Coutinho, Ricardo.Zalmon, Ilana Rosental.Fagundes Netto, Eduardo BarrosGaelzer, Luiz RicardoCoutinho, RicardoZalmon, Ilana Rosental2019-09-10T16:41:02Z2019-09-10T16:41:02Z2011http://www.redebim.dphdm.mar.mil.br/vinculos/00000f/00000f2a.pdfhttp://www.repositorio.mar.mil.br/handle/ripcmb/844054The effect of the Orion shipwreck on fish assemblage distribution near the reef was studied to the northeast of Rio de Janeiro with six different fishing gears: gillnets, mid-water longlines, circular traps, rectangular traps, vertical longlines, and bottom trawling. The study consisted of a pre-monitoring survey four months before the shipwreck in the area (A) and in two control areas (B and C). After 36 months, a total of 56 species were caught in the Orion reef area, 49 in control area B and 59 in control area C. The similarity analysis, considering the number of fish caught during the nine surveys in the three study areas, clustered the pre-monitoring and first post-settlement surveys of the three sites. This occurred due to the low number of fish captured and the dominance of Trichiurus lepturus and Lagocephalus laevigatus . These results differed from all the other studies in the three areas due to the co-dominance of Ctenosciaena gracilicirrhus and Stephanolepis hispidus . Such spatial similarity shows the low influence of the Orion reef in the area after three years. Biomass values were 15% higher in the Orion reef area than in the control areas, representing an increase of up to 1.2 times in wet weight. The increment of fish communities is still insufficient for proposing sustainable fishery activity in the shipwreck area. The monitoring time (32 months) after the sinking of the Orion may be considered too short to assure that the wreck age had reached its maturity as an artificial reef, either as a fish attractor or producer.El efecto del buque sumergido Orión sobre la distribución de las comunidades de peces próximas al arrecife fue estudiado en el noreste de Rio de Janeiro utilizándose seis artes de pesca: red de enmalle, palangre pelágico, trampas circulares, trampas r ectangulares, palangres y red de arrastre de fondo. El estudio consistió en una investigación premonitoreo, cuatro meses antes del naufragio en el área (A) y en dos áreas control (B y C). Después de 36 meses, 56 especies fueron capturadas en el arrecife Orión , 49 en el área control B y 59 en el control C. Los análisis de similitud considerando el número de peces capturados durante las nueve campañas en las tres áreas de estudio, agr uparon las campañas de premonitoreo y la primera de pos- asentamiento, en las tres localidades, debido a la baja captura de individuos y a la dominancia de Trichiurus lepturus y Lagocephalus laevigatus . Estos resultados fueron distintos en todas las otras investigaciones en las tres localidades, debido a la codominancia de Ctenosciaena gracilicirrhus y Stephanolepis hispidus . Esta similitud espacial muestra la ba ja influencia del arrecife Orión en el área después de tres años. Los valores de biomasa fueron 15% mayores en la área del arrecife Orión que en las áreas control, representando un aumento de hasta 1,2 veces en peso húmedo. El aumento de las comunidades de peces en el área es todavía insuficiente para proponer la actividad pesquera sustentable en la región del naufragio. El periodo de monitoreo (32 meses), despues del asentamiento del Orión , puede ser considerado corto para asegurar que el naufragio, tenga legado a su madurez como arrecife artificial, como atractivo o productor de peces.porEcologia marinhaRecifes e ilhas de coral-Rio de Janeiro (Estado)Peixe espada-Rio de Janeiro (Estado)Baiacu-ará-Rio de Janeiro (Estado)Naufrágios-Rio de Janeiro (Estado)Influence of a shipwreck on a nearshore-reef fish assemblages off the coast of Rio de Janeiro, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da Produção Científica da Marinha do Brasil (RI-MB)instname:Marinha do Brasil (MB)instacron:MBTEXT00000f2a.pdf.txt00000f2a.pdf.txtExtracted texttext/plain51741https://www.repositorio.mar.mil.br/bitstream/ripcmb/844054/2/00000f2a.pdf.txt68bb95dd546162f44360d1379ef8ca1dMD52THUMBNAIL00000f2a.pdf.jpg00000f2a.pdf.jpgGenerated Thumbnailimage/jpeg1741https://www.repositorio.mar.mil.br/bitstream/ripcmb/844054/3/00000f2a.pdf.jpg5f560d45c9461356f71d94ff33f02852MD53ORIGINAL00000f2a.pdfapplication/pdf435678https://www.repositorio.mar.mil.br/bitstream/ripcmb/844054/1/00000f2a.pdf86584067b7b53ddbc840670cfe42bb7bMD51ripcmb/8440542022-09-23 16:50:44.628oai:www.repositorio.mar.mil.br:ripcmb/844054Repositório InstitucionalPUBhttps://www.repositorio.mar.mil.br/oai/requestdphdm.repositorio@marinha.mil.bropendoar:2022-09-23T19:50:44Repositório Institucional da Produção Científica da Marinha do Brasil (RI-MB) - Marinha do Brasil (MB)false |
dc.title.pt_BR.fl_str_mv |
Influence of a shipwreck on a nearshore-reef fish assemblages off the coast of Rio de Janeiro, Brazil |
title |
Influence of a shipwreck on a nearshore-reef fish assemblages off the coast of Rio de Janeiro, Brazil |
spellingShingle |
Influence of a shipwreck on a nearshore-reef fish assemblages off the coast of Rio de Janeiro, Brazil Fagundes Netto, Eduardo Barros Recifes e ilhas de coral-Rio de Janeiro (Estado) Peixe espada-Rio de Janeiro (Estado) Baiacu-ará-Rio de Janeiro (Estado) Naufrágios-Rio de Janeiro (Estado) Ecologia marinha |
title_short |
Influence of a shipwreck on a nearshore-reef fish assemblages off the coast of Rio de Janeiro, Brazil |
title_full |
Influence of a shipwreck on a nearshore-reef fish assemblages off the coast of Rio de Janeiro, Brazil |
title_fullStr |
Influence of a shipwreck on a nearshore-reef fish assemblages off the coast of Rio de Janeiro, Brazil |
title_full_unstemmed |
Influence of a shipwreck on a nearshore-reef fish assemblages off the coast of Rio de Janeiro, Brazil |
title_sort |
Influence of a shipwreck on a nearshore-reef fish assemblages off the coast of Rio de Janeiro, Brazil |
author |
Fagundes Netto, Eduardo Barros |
author_facet |
Fagundes Netto, Eduardo Barros Gaelzer, Luiz Ricardo Coutinho, Ricardo Zalmon, Ilana Rosental |
author_role |
author |
author2 |
Gaelzer, Luiz Ricardo Coutinho, Ricardo Zalmon, Ilana Rosental |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Fagundes Netto, Eduardo Barros. Gaelzer, Luiz Ricardo. Coutinho, Ricardo. Zalmon, Ilana Rosental. |
dc.contributor.author.fl_str_mv |
Fagundes Netto, Eduardo Barros Gaelzer, Luiz Ricardo Coutinho, Ricardo Zalmon, Ilana Rosental |
dc.subject.por.fl_str_mv |
Recifes e ilhas de coral-Rio de Janeiro (Estado) Peixe espada-Rio de Janeiro (Estado) Baiacu-ará-Rio de Janeiro (Estado) Naufrágios-Rio de Janeiro (Estado) |
topic |
Recifes e ilhas de coral-Rio de Janeiro (Estado) Peixe espada-Rio de Janeiro (Estado) Baiacu-ará-Rio de Janeiro (Estado) Naufrágios-Rio de Janeiro (Estado) Ecologia marinha |
dc.subject.dgpm.none.fl_str_mv |
Ecologia marinha |
description |
The effect of the Orion shipwreck on fish assemblage distribution near the reef was studied to the northeast of Rio de Janeiro with six different fishing gears: gillnets, mid-water longlines, circular traps, rectangular traps, vertical longlines, and bottom trawling. The study consisted of a pre-monitoring survey four months before the shipwreck in the area (A) and in two control areas (B and C). After 36 months, a total of 56 species were caught in the Orion reef area, 49 in control area B and 59 in control area C. The similarity analysis, considering the number of fish caught during the nine surveys in the three study areas, clustered the pre-monitoring and first post-settlement surveys of the three sites. This occurred due to the low number of fish captured and the dominance of Trichiurus lepturus and Lagocephalus laevigatus . These results differed from all the other studies in the three areas due to the co-dominance of Ctenosciaena gracilicirrhus and Stephanolepis hispidus . Such spatial similarity shows the low influence of the Orion reef in the area after three years. Biomass values were 15% higher in the Orion reef area than in the control areas, representing an increase of up to 1.2 times in wet weight. The increment of fish communities is still insufficient for proposing sustainable fishery activity in the shipwreck area. The monitoring time (32 months) after the sinking of the Orion may be considered too short to assure that the wreck age had reached its maturity as an artificial reef, either as a fish attractor or producer. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011 |
dc.date.accessioned.fl_str_mv |
2019-09-10T16:41:02Z |
dc.date.available.fl_str_mv |
2019-09-10T16:41:02Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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publishedVersion |
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