The evolution of the industrial trawl fishery footprint off southeastern and southern Brazil

This study established the spatial footprint of the industrial trawl fishing fleet operating off southeastern and southern Brazil between 2003 and 2011. It also provides estimates of the area swept by this fleet and the correspondent Utilization Index (swept area/available area) as measures of impac...

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Autores principales:	Port,Dagoberto, Alvarez Perez,José Angel, Menezes,João Thadeu de
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2016
Materias:	spatial footprint swept area trawling southeast and south of Brazil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000500004
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spelling	oai:scielo:S0718-560X20160005000042016-12-15The evolution of the industrial trawl fishery footprint off southeastern and southern BrazilPort,DagobertoAlvarez Perez,José AngelMenezes,João Thadeu de spatial footprint swept area trawling southeast and south of Brazil This study established the spatial footprint of the industrial trawl fishing fleet operating off southeastern and southern Brazil between 2003 and 2011. It also provides estimates of the area swept by this fleet and the correspondent Utilization Index (swept area/available area) as measures of impact over the benthic ecosystem. Lastly, costs/benefits of trawling were addressed by the cumulative biomass landed during the study period expressed as a proportion of the cumulative swept area (Biomass-Swept Area Index). These variables were mapped and their patterns of spatial-temporal variability were associated with fishing strategies (shrimp trawling, slope trawling and pair trawling), latitudinal strata, depth strata, and substrate types. The trawl fishery footprint during the study period comprised 502,190 km². The total area swept by trawling operations was 680,697.5 km², 1.4 times the available area. Trawling impacts on the substrate were primarily produced by the dominant shrimp trawling strategy. In comparison with other strategies, these vessels used the most extensive shelf area, and disturbed more sand/mud habitat surface to obtain less landed biomass. Delimiting the trawl fishery footprint off southeastern and southern Brazil and its main core areas comprised a first step towards in evaluating impact on such areas, providing preliminary information for future ecosystem-based fisheries management and marine spatial planning strategies.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=S0718-560X2016000500004en10.3856/vol44-issue5-fulltext-4
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	spatial footprint swept area trawling southeast and south of Brazil
spellingShingle	spatial footprint swept area trawling southeast and south of Brazil Port,Dagoberto Alvarez Perez,José Angel Menezes,João Thadeu de The evolution of the industrial trawl fishery footprint off southeastern and southern Brazil
description	This study established the spatial footprint of the industrial trawl fishing fleet operating off southeastern and southern Brazil between 2003 and 2011. It also provides estimates of the area swept by this fleet and the correspondent Utilization Index (swept area/available area) as measures of impact over the benthic ecosystem. Lastly, costs/benefits of trawling were addressed by the cumulative biomass landed during the study period expressed as a proportion of the cumulative swept area (Biomass-Swept Area Index). These variables were mapped and their patterns of spatial-temporal variability were associated with fishing strategies (shrimp trawling, slope trawling and pair trawling), latitudinal strata, depth strata, and substrate types. The trawl fishery footprint during the study period comprised 502,190 km². The total area swept by trawling operations was 680,697.5 km², 1.4 times the available area. Trawling impacts on the substrate were primarily produced by the dominant shrimp trawling strategy. In comparison with other strategies, these vessels used the most extensive shelf area, and disturbed more sand/mud habitat surface to obtain less landed biomass. Delimiting the trawl fishery footprint off southeastern and southern Brazil and its main core areas comprised a first step towards in evaluating impact on such areas, providing preliminary information for future ecosystem-based fisheries management and marine spatial planning strategies.
author	Port,Dagoberto Alvarez Perez,José Angel Menezes,João Thadeu de
author_facet	Port,Dagoberto Alvarez Perez,José Angel Menezes,João Thadeu de
author_sort	Port,Dagoberto
title	The evolution of the industrial trawl fishery footprint off southeastern and southern Brazil
title_short	The evolution of the industrial trawl fishery footprint off southeastern and southern Brazil
title_full	The evolution of the industrial trawl fishery footprint off southeastern and southern Brazil
title_fullStr	The evolution of the industrial trawl fishery footprint off southeastern and southern Brazil
title_full_unstemmed	The evolution of the industrial trawl fishery footprint off southeastern and southern Brazil
title_sort	evolution of the industrial trawl fishery footprint off southeastern and southern brazil
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=S0718-560X2016000500004
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The evolution of the industrial trawl fishery footprint off southeastern and southern Brazil

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