Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/2444 |
Resumo: | The spatial distribution, abundance and habitat of a population of a shallow-water octopus, Octopus insularis, subject to some fishery pressure,was studied in the Fernando de Noronha Archipelago, a marine protected area off northeastern Brazil. Three techniqueswere used: visual censuses in fixed quadrants and in roving-diver and catch per unit of effort (CPUE) of the commercial fishery.We had two hypotheses, that the species had a nonrandom distribution, related to substrate and body size, and that relative abundance outside the national parkwould be lower than within, possibly due to fishery pressure.We found a patchy distribution over all, with octopuses almost confined to substrates with a large proportion of hard surfaces. Therewere seasonal and depth effects on distribution of the very small octopuses found mainly in shallow water (intertidal to 5m depth) during the dry season. Abundance was similar inside and outside of the national park, which suggests that the octopus fishery is not a threat to the abundance of O. insularis at this present level. |
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Leite, Tatiana SilvaHaimovici, ManuelMather, JenniferOliveira, Jorge Eduardo Lins2012-08-25T15:48:55Z2012-08-25T15:48:55Z2009LEITE, Tatiana Silva et al. Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area. Fisheries Research, v. 98, p. 85-91, 2009. Disponível em: <http://www.demersais.furg.br/Files/2009.Leite.habitat.distribution.abundance.O.insularis.Fish.Res.pdf>. Acesso em: 30 jun. 2012.0165-7836http://repositorio.furg.br/handle/1/2444The spatial distribution, abundance and habitat of a population of a shallow-water octopus, Octopus insularis, subject to some fishery pressure,was studied in the Fernando de Noronha Archipelago, a marine protected area off northeastern Brazil. Three techniqueswere used: visual censuses in fixed quadrants and in roving-diver and catch per unit of effort (CPUE) of the commercial fishery.We had two hypotheses, that the species had a nonrandom distribution, related to substrate and body size, and that relative abundance outside the national parkwould be lower than within, possibly due to fishery pressure.We found a patchy distribution over all, with octopuses almost confined to substrates with a large proportion of hard surfaces. Therewere seasonal and depth effects on distribution of the very small octopuses found mainly in shallow water (intertidal to 5m depth) during the dry season. Abundance was similar inside and outside of the national park, which suggests that the octopus fishery is not a threat to the abundance of O. insularis at this present level.engOctopusMarine protected areaHabitatAbundanceFishery managementDistributionHabitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected areainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGORIGINALHabitat, distribution, and abundance of the commercial octopus (Octopus insularis) in a tropical oceanic island, Brazil-.pdfHabitat, distribution, and abundance of the commercial octopus (Octopus insularis) in a tropical oceanic island, Brazil-.pdfapplication/pdf439987https://repositorio.furg.br/bitstream/1/2444/1/Habitat%2c%20distribution%2c%20and%20abundance%20of%20the%20commercial%20octopus%20%28Octopus%20insularis%29%20in%20a%20tropical%20oceanic%20island%2c%20Brazil-.pdf5e89448261c726155b8d546246f749e3MD51open accessLICENSElicense.txtlicense.txttext/plain; charset=utf-81678https://repositorio.furg.br/bitstream/1/2444/2/license.txtd3be63d3b3eee02729709361dac69efeMD52open access1/24442012-08-25 12:48:55.985open accessoai:repositorio.furg.br:1/244477+9IG5lY2Vzc++/vXJpbyBjb25jb3JkYXIgY29tIGEgbGljZW7vv71hIGRlIGRpc3RyaWJ1ae+/ve+/vW8gbu+/vW8tZXhjbHVzaXZhLAphbnRlcyBxdWUgbyBkb2N1bWVudG8gcG9zc2EgYXBhcmVjZXIgbm8gUmVwb3NpdO+/vXJpby4gUG9yIGZhdm9yLCBsZWlhIGEKbGljZW7vv71hIGF0ZW50YW1lbnRlLiBDYXNvIG5lY2Vzc2l0ZSBkZSBhbGd1bSBlc2NsYXJlY2ltZW50byBlbnRyZSBlbQpjb250YXRvIGF0cmF277+9cyBkZTogcmVwb3NpdG9yaW9AZnVyZy5iciBvdSAweHggNTMgMzIzMy02NzA2LgoKTElDRU7vv71BIERFIERJU1RSSUJVSe+/ve+/vU8gTu+/vU8tRVhDTFVTSVZBCgpBbyBhc3NpbmFyIGUgZW50cmVnYXIgZXN0YSBsaWNlbu+/vWEsIG8vYSBTci4vU3JhLiAoYXV0b3Igb3UgZGV0ZW50b3IgZG9zIGRpcmVpdG9zIGRlIGF1dG9yKToKCmEpIENvbmNlZGUg77+9IFVuaXZlcnNpZGFkZSBGZWRlcmFsIGRlIFJpbyBHcmFuZGUgLSAgRlVSRyBvIGRpcmVpdG8gbu+/vW8tZXhjbHVzaXZvIGRlIHJlcHJvZHV6aXIsIGNvbnZlcnRlciAoY29tbyBkZWZpbmlkbyBhYmFpeG8pLCBjb211bmljYXIgZS9vdSBkaXN0cmlidWlyIG8gZG9jdW1lbnRvIGVudHJlZ3VlIChpbmNsdWluZG8gbyByZXN1bW8vYWJzdHJhY3QpIGVtCmZvcm1hdG8gZGlnaXRhbCBvdSBpbXByZXNzbyBlIGVtIHF1YWxxdWVyIG1laW8uCgpiKSBEZWNsYXJhIHF1ZSBvIGRvY3VtZW50byBlbnRyZWd1ZSDvv70gc2V1IHRyYWJhbGhvIG9yaWdpbmFsLCBlIHF1ZQpkZXTvv71tIG8gZGlyZWl0byBkZSBjb25jZWRlciBvcyBkaXJlaXRvcyBjb250aWRvcyBuZXN0YSBsaWNlbu+/vWEuIERlY2xhcmEgdGFtYu+/vW0gcXVlIGEgZW50cmVnYSBkbyBkb2N1bWVudG8gbu+/vW8gaW5mcmluZ2UsIHRhbnRvIHF1YW50byBsaGUg77+9IHBvc3Pvv712ZWwgc2FiZXIsIG9zIGRpcmVpdG9zIGRlIHF1YWxxdWVyIG91dHJhIHBlc3NvYSBvdSBlbnRpZGFkZS4KCmMpIFNlIG8gZG9jdW1lbnRvIGVudHJlZ3VlIGNvbnTvv71tIG1hdGVyaWFsIGRvIHF1YWwgbu+/vW8gZGV077+9bSBvcwpkaXJlaXRvcyBkZSBhdXRvciwgZGVjbGFyYSBxdWUgb2J0ZXZlIGF1dG9yaXph77+977+9byBkbyBkZXRlbnRvciBkb3MKZGlyZWl0b3MgZGUgYXV0b3IgcGFyYSBjb25jZWRlciDvv70gRlVSRyBvcyBkaXJlaXRvcyByZXF1ZXJpZG9zIHBvciBlc3RhIGxpY2Vu77+9YSwgZSBxdWUgZXNzZSBtYXRlcmlhbCBjdWpvcyBkaXJlaXRvcyBz77+9byBkZSB0ZXJjZWlyb3MgZXN077+9IGNsYXJhbWVudGUgaWRlbnRpZmljYWRvIGUgcmVjb25oZWNpZG8gbm8gdGV4dG8gb3UgY29udGXvv71kbyBkbyBkb2N1bWVudG8gZW50cmVndWUuCgpTZSBvIGRvY3VtZW50byBlbnRyZWd1ZSDvv70gYmFzZWFkbyBlbSB0cmFiYWxobyBmaW5hbmNpYWRvIG91IGFwb2lhZG8KcG9yIG91dHJhIGluc3RpdHVp77+977+9byBxdWUgbu+/vW8gYSBGVVJHLCBkZWNsYXJhIHF1ZSBjdW1wcml1IHF1YWlzcXVlciBvYnJpZ2Hvv73vv71lcyBleGlnaWRhcyBwZWxvIHJlc3BlY3Rpdm8gY29udHJhdG8gb3UgYWNvcmRvLgoKQSBGVVJHIGlkZW50aWZpY2Fy77+9IGNsYXJhbWVudGUgbyhzKSBzZXUgKHMpIG5vbWUgKHMpIGNvbW8gbyAocykgYXV0b3IgKGVzKSBvdSBkZXRlbnRvciAoZXMpIGRvcyBkaXJlaXRvcyBkbyBkb2N1bWVudG8gZW50cmVndWUsIGUgbu+/vW8gZmFy77+9IHF1YWxxdWVyIGFsdGVyYe+/ve+/vW8sIHBhcmEgYWzvv71tIGRhcyBwZXJtaXRpZGFzIHBvciBlc3RhIGxpY2Vu77+9YS4KRepositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2012-08-25T15:48:55Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.pt_BR.fl_str_mv |
Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area |
title |
Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area |
spellingShingle |
Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area Leite, Tatiana Silva Octopus Marine protected area Habitat Abundance Fishery management Distribution |
title_short |
Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area |
title_full |
Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area |
title_fullStr |
Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area |
title_full_unstemmed |
Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area |
title_sort |
Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area |
author |
Leite, Tatiana Silva |
author_facet |
Leite, Tatiana Silva Haimovici, Manuel Mather, Jennifer Oliveira, Jorge Eduardo Lins |
author_role |
author |
author2 |
Haimovici, Manuel Mather, Jennifer Oliveira, Jorge Eduardo Lins |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Leite, Tatiana Silva Haimovici, Manuel Mather, Jennifer Oliveira, Jorge Eduardo Lins |
dc.subject.por.fl_str_mv |
Octopus Marine protected area Habitat Abundance Fishery management Distribution |
topic |
Octopus Marine protected area Habitat Abundance Fishery management Distribution |
description |
The spatial distribution, abundance and habitat of a population of a shallow-water octopus, Octopus insularis, subject to some fishery pressure,was studied in the Fernando de Noronha Archipelago, a marine protected area off northeastern Brazil. Three techniqueswere used: visual censuses in fixed quadrants and in roving-diver and catch per unit of effort (CPUE) of the commercial fishery.We had two hypotheses, that the species had a nonrandom distribution, related to substrate and body size, and that relative abundance outside the national parkwould be lower than within, possibly due to fishery pressure.We found a patchy distribution over all, with octopuses almost confined to substrates with a large proportion of hard surfaces. Therewere seasonal and depth effects on distribution of the very small octopuses found mainly in shallow water (intertidal to 5m depth) during the dry season. Abundance was similar inside and outside of the national park, which suggests that the octopus fishery is not a threat to the abundance of O. insularis at this present level. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009 |
dc.date.accessioned.fl_str_mv |
2012-08-25T15:48:55Z |
dc.date.available.fl_str_mv |
2012-08-25T15:48:55Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
LEITE, Tatiana Silva et al. Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area. Fisheries Research, v. 98, p. 85-91, 2009. Disponível em: <http://www.demersais.furg.br/Files/2009.Leite.habitat.distribution.abundance.O.insularis.Fish.Res.pdf>. Acesso em: 30 jun. 2012. |
dc.identifier.uri.fl_str_mv |
http://repositorio.furg.br/handle/1/2444 |
dc.identifier.issn.none.fl_str_mv |
0165-7836 |
identifier_str_mv |
LEITE, Tatiana Silva et al. Habitat, distribution, and abundance of the commercial octopus (octopus insularis) in a tropical oceanic island, Brazil: Information for management of an artisanal fishery inside a marine protected area. Fisheries Research, v. 98, p. 85-91, 2009. Disponível em: <http://www.demersais.furg.br/Files/2009.Leite.habitat.distribution.abundance.O.insularis.Fish.Res.pdf>. Acesso em: 30 jun. 2012. 0165-7836 |
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http://repositorio.furg.br/handle/1/2444 |
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