Records of bycatch of Hippocampus patagonicus (Pisces: Syngnathidae) in commercial fishing in southern Brazil

ABSTRACT Hippocampus patagonicus is classified as endangered in the vulnerable category by Brazilian law (MMA, 2014), and by IUCN (International Union for Conservation of Nature) criteria. Thirteen boats from the commercial fishing fleet of southern Brazil were monitored for 17 months to supplement...

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Autores principales: Silveira,Rosana Beatriz, Barcelos,Brenda Tusi, Machado,Rodrigo, Oliveira,Larissa, Santos-Silva,José Rodrigo
Lenguaje:English
Publicado: Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2018
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000400744
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spelling oai:scielo:S0718-560X20180004007442018-11-06Records of bycatch of Hippocampus patagonicus (Pisces: Syngnathidae) in commercial fishing in southern BrazilSilveira,Rosana BeatrizBarcelos,Brenda TusiMachado,RodrigoOliveira,LarissaSantos-Silva,José Rodrigo Hippocampus patagonicus seahorse endangered gillnet fishing trawling transboundary marine resources ABSTRACT Hippocampus patagonicus is classified as endangered in the vulnerable category by Brazilian law (MMA, 2014), and by IUCN (International Union for Conservation of Nature) criteria. Thirteen boats from the commercial fishing fleet of southern Brazil were monitored for 17 months to supplement data for the evaluation of this species. Three seahorse collection points were established, where the fish are landed: port of Imbé/Tramandaí and port of Passo de Torres (northern coast (NC) of Rio Grande do Sul) and the port of Rio Grande (southern coast (SC) of Rio Grande do Sul). The presence of H. patagonicus was recurrent, and the collected animals were between 22 and 130 mm in height. The species was captured from 11 to 57 m deep as bycatch of significant transboundary marine resources (Brazil, Uruguay, and Argentine). In bycatch of gillnet fishing (NC), estimated capture was 0.68 ± 0.97 seahorses/month/vessel, annually, an average of 89.76 seahorses would be removed from the sea by the 11 vessels involved. In trawling (SC), it was 49.66 ± 64.86 seahorses/month/double-rig trawl. It is estimated that 8,342 seahorses are removed annually as bycatch, only in this mode of fishing. The information obtained reinforces the need to apply ecosystem management to fisheries for the recovery of stocks that are over-exploited and accompanying fauna as well, especially small species with poorly known life histories such as H. patagonicus.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.4 20182018-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000400744en10.3856/vol46-issue4-fulltext-12
institution Scielo Chile
collection Scielo Chile
language English
topic Hippocampus patagonicus
seahorse
endangered
gillnet fishing
trawling
transboundary marine resources
spellingShingle Hippocampus patagonicus
seahorse
endangered
gillnet fishing
trawling
transboundary marine resources
Silveira,Rosana Beatriz
Barcelos,Brenda Tusi
Machado,Rodrigo
Oliveira,Larissa
Santos-Silva,José Rodrigo
Records of bycatch of Hippocampus patagonicus (Pisces: Syngnathidae) in commercial fishing in southern Brazil
description ABSTRACT Hippocampus patagonicus is classified as endangered in the vulnerable category by Brazilian law (MMA, 2014), and by IUCN (International Union for Conservation of Nature) criteria. Thirteen boats from the commercial fishing fleet of southern Brazil were monitored for 17 months to supplement data for the evaluation of this species. Three seahorse collection points were established, where the fish are landed: port of Imbé/Tramandaí and port of Passo de Torres (northern coast (NC) of Rio Grande do Sul) and the port of Rio Grande (southern coast (SC) of Rio Grande do Sul). The presence of H. patagonicus was recurrent, and the collected animals were between 22 and 130 mm in height. The species was captured from 11 to 57 m deep as bycatch of significant transboundary marine resources (Brazil, Uruguay, and Argentine). In bycatch of gillnet fishing (NC), estimated capture was 0.68 ± 0.97 seahorses/month/vessel, annually, an average of 89.76 seahorses would be removed from the sea by the 11 vessels involved. In trawling (SC), it was 49.66 ± 64.86 seahorses/month/double-rig trawl. It is estimated that 8,342 seahorses are removed annually as bycatch, only in this mode of fishing. The information obtained reinforces the need to apply ecosystem management to fisheries for the recovery of stocks that are over-exploited and accompanying fauna as well, especially small species with poorly known life histories such as H. patagonicus.
author Silveira,Rosana Beatriz
Barcelos,Brenda Tusi
Machado,Rodrigo
Oliveira,Larissa
Santos-Silva,José Rodrigo
author_facet Silveira,Rosana Beatriz
Barcelos,Brenda Tusi
Machado,Rodrigo
Oliveira,Larissa
Santos-Silva,José Rodrigo
author_sort Silveira,Rosana Beatriz
title Records of bycatch of Hippocampus patagonicus (Pisces: Syngnathidae) in commercial fishing in southern Brazil
title_short Records of bycatch of Hippocampus patagonicus (Pisces: Syngnathidae) in commercial fishing in southern Brazil
title_full Records of bycatch of Hippocampus patagonicus (Pisces: Syngnathidae) in commercial fishing in southern Brazil
title_fullStr Records of bycatch of Hippocampus patagonicus (Pisces: Syngnathidae) in commercial fishing in southern Brazil
title_full_unstemmed Records of bycatch of Hippocampus patagonicus (Pisces: Syngnathidae) in commercial fishing in southern Brazil
title_sort records of bycatch of hippocampus patagonicus (pisces: syngnathidae) in commercial fishing in 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=S0718-560X2018000400744
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