Spatial patterns of fishing fleets on the Southeastern Brazilian Bight

ABSTRACT. This study aimed to determine the different usage strategies of the marine environment by fishing fleets landing in São Paulo based on an analysis of the spatial distribution patterns indicated in 337,482 trips between 2010 and 2013. The sea region off the Brazilian coast between 23°00...

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Autores principales: Imoto,Ricardo Dias, Carneiro,Marcus Henrique, Ávila-da-Silva,Antônio O
Lenguaje:English
Publicado: Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2016
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000500012
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spelling oai:scielo:S0718-560X20160005000122016-12-15Spatial patterns of fishing fleets on the Southeastern Brazilian BightImoto,Ricardo DiasCarneiro,Marcus HenriqueÁvila-da-Silva,Antônio O spatial distribution fishing fleet fishing effort socio-economics ABSTRACT. This study aimed to determine the different usage strategies of the marine environment by fishing fleets landing in São Paulo based on an analysis of the spatial distribution patterns indicated in 337,482 trips between 2010 and 2013. The sea region off the Brazilian coast between 23°00'S and 28°00'S (Southeastern Brazilian Bight) was divided into six depth strata. For each stratum, the number of trips, effective fishing days, catch and number of jobs were estimated. The stratum from 0 to 20 m depth had the highest frequency of trips and importance for the low-mobility fleets from which 33% of the total catch landed in the state was extracted. The higher mobility fleets were more represented starting at depths of 20 m. The stratum from 20-50 m had the largest catches, 52% of the total landings. The activity of the São Paulo fishing fleets, with low or high fishing power, was concentrated on the inner shelf. The region of the outer shelf and the continental shelf break are also frequently exploited by the higher mobility fleets, where the largest catches of demersal fish occur. The demersal and pelagic environments beyond the continental shelf break are rarely exploited and require the use of specific fishing gear.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.44 n.5 20162016-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000500012en10.3856/vol44-issue5-fulltext-12
institution Scielo Chile
collection Scielo Chile
language English
topic spatial distribution
fishing fleet
fishing effort
socio-economics
spellingShingle spatial distribution
fishing fleet
fishing effort
socio-economics
Imoto,Ricardo Dias
Carneiro,Marcus Henrique
Ávila-da-Silva,Antônio O
Spatial patterns of fishing fleets on the Southeastern Brazilian Bight
description ABSTRACT. This study aimed to determine the different usage strategies of the marine environment by fishing fleets landing in São Paulo based on an analysis of the spatial distribution patterns indicated in 337,482 trips between 2010 and 2013. The sea region off the Brazilian coast between 23°00'S and 28°00'S (Southeastern Brazilian Bight) was divided into six depth strata. For each stratum, the number of trips, effective fishing days, catch and number of jobs were estimated. The stratum from 0 to 20 m depth had the highest frequency of trips and importance for the low-mobility fleets from which 33% of the total catch landed in the state was extracted. The higher mobility fleets were more represented starting at depths of 20 m. The stratum from 20-50 m had the largest catches, 52% of the total landings. The activity of the São Paulo fishing fleets, with low or high fishing power, was concentrated on the inner shelf. The region of the outer shelf and the continental shelf break are also frequently exploited by the higher mobility fleets, where the largest catches of demersal fish occur. The demersal and pelagic environments beyond the continental shelf break are rarely exploited and require the use of specific fishing gear.
author Imoto,Ricardo Dias
Carneiro,Marcus Henrique
Ávila-da-Silva,Antônio O
author_facet Imoto,Ricardo Dias
Carneiro,Marcus Henrique
Ávila-da-Silva,Antônio O
author_sort Imoto,Ricardo Dias
title Spatial patterns of fishing fleets on the Southeastern Brazilian Bight
title_short Spatial patterns of fishing fleets on the Southeastern Brazilian Bight
title_full Spatial patterns of fishing fleets on the Southeastern Brazilian Bight
title_fullStr Spatial patterns of fishing fleets on the Southeastern Brazilian Bight
title_full_unstemmed Spatial patterns of fishing fleets on the Southeastern Brazilian Bight
title_sort spatial patterns of fishing fleets on the southeastern brazilian bight
publisher Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate 2016
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000500012
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AT carneiromarcushenrique spatialpatternsoffishingfleetsonthesoutheasternbrazilianbight
AT aviladasilvaantonioo spatialpatternsoffishingfleetsonthesoutheasternbrazilianbight
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