Relative efficiency of square-mesh codends in an artisanal fishery in southern Brazil

The relative efficiency of two square-mesh codend designs with the same circumference (~2 m) but different mesh sizes and materials (32 mm polyethylene-PE and 30 mm polyamide-PA) was tested in an artisanal shrimp trawl fishery in Paraná, southern Brazil. The two square-mesh codends were hauled alter...

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Autores principales:	Silva¹,Catarina N.S, Dias,José H, Cattani,André P, Spach,Henry L
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2012
Materias:	discards shrimp fishery bycatch reduction devices square-mesh size selection fisheries management southern Brazil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2012000100012
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spelling	oai:scielo:S0718-560X20120001000122012-05-16Relative efficiency of square-mesh codends in an artisanal fishery in southern BrazilSilva¹,Catarina N.SDias,José HCattani,André PSpach,Henry L discards shrimp fishery bycatch reduction devices square-mesh size selection fisheries management southern Brazil The relative efficiency of two square-mesh codend designs with the same circumference (~2 m) but different mesh sizes and materials (32 mm polyethylene-PE and 30 mm polyamide-PA) was tested in an artisanal shrimp trawl fishery in Paraná, southern Brazil. The two square-mesh codends were hauled alternately with a 26 mm diamond-shaped mesh codend (control) in a twin gear configuration. Although not significant, the mean numbers of total bycatch were reduced by 16.6 and 10.0% with the 32 and 30 mm square-mesh codends, respectively. The results indicate significant improvement in size selectivity for some species (Xiphopenaeus kroyeri and Stellifer rastrifer). The operational changes tested can be a suitable technical solution for reducing the capture of immature organisms in the shrimp trawl fishery in Paraná, Brazil.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.40 n.1 20122012-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2012000100012en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	discards shrimp fishery bycatch reduction devices square-mesh size selection fisheries management southern Brazil
spellingShingle	discards shrimp fishery bycatch reduction devices square-mesh size selection fisheries management southern Brazil Silva¹,Catarina N.S Dias,José H Cattani,André P Spach,Henry L Relative efficiency of square-mesh codends in an artisanal fishery in southern Brazil
description	The relative efficiency of two square-mesh codend designs with the same circumference (~2 m) but different mesh sizes and materials (32 mm polyethylene-PE and 30 mm polyamide-PA) was tested in an artisanal shrimp trawl fishery in Paraná, southern Brazil. The two square-mesh codends were hauled alternately with a 26 mm diamond-shaped mesh codend (control) in a twin gear configuration. Although not significant, the mean numbers of total bycatch were reduced by 16.6 and 10.0% with the 32 and 30 mm square-mesh codends, respectively. The results indicate significant improvement in size selectivity for some species (Xiphopenaeus kroyeri and Stellifer rastrifer). The operational changes tested can be a suitable technical solution for reducing the capture of immature organisms in the shrimp trawl fishery in Paraná, Brazil.
author	Silva¹,Catarina N.S Dias,José H Cattani,André P Spach,Henry L
author_facet	Silva¹,Catarina N.S Dias,José H Cattani,André P Spach,Henry L
author_sort	Silva¹,Catarina N.S
title	Relative efficiency of square-mesh codends in an artisanal fishery in southern Brazil
title_short	Relative efficiency of square-mesh codends in an artisanal fishery in southern Brazil
title_full	Relative efficiency of square-mesh codends in an artisanal fishery in southern Brazil
title_fullStr	Relative efficiency of square-mesh codends in an artisanal fishery in southern Brazil
title_full_unstemmed	Relative efficiency of square-mesh codends in an artisanal fishery in southern Brazil
title_sort	relative efficiency of square-mesh codends in an artisanal fishery in southern brazil
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2012000100012
work_keys_str_mv	AT silva1catarinans relativeefficiencyofsquaremeshcodendsinanartisanalfisheryinsouthernbrazil AT diasjoseh relativeefficiencyofsquaremeshcodendsinanartisanalfisheryinsouthernbrazil AT cattaniandrep relativeefficiencyofsquaremeshcodendsinanartisanalfisheryinsouthernbrazil AT spachhenryl relativeefficiencyofsquaremeshcodendsinanartisanalfisheryinsouthernbrazil
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Relative efficiency of square-mesh codends in an artisanal fishery in southern Brazil

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