Gillnet selectivity for whitemouth croaker (Micropogonias furnieri) from southeastern and southern Brazil

The whitemouth croaker is one of the most important demersal resources of southeast and southern Brazil, and it is caught mostly by bottom gillnets. This fishing system has the advantage of a unimodal distribution of size selectivity, where the optimum length corresponds to the mode of the distribut...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Queirolo,Dante, Pio,Vanessa Mafra, Pezzuto,Paulo Ricardo, Ávila-da-Silva,Antônio O, Haimovici,Manuel, Cardoso,Luis Gustavo
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2016
Materias:	Micropogonias furnieri fisheries gillnet selectivity Brazil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000500010
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-560X2016000500010
record_format	dspace
spelling	oai:scielo:S0718-560X20160005000102016-12-15Gillnet selectivity for whitemouth croaker (Micropogonias furnieri) from southeastern and southern BrazilQueirolo,DantePio,Vanessa MafraPezzuto,Paulo RicardoÁvila-da-Silva,Antônio OHaimovici,ManuelCardoso,Luis Gustavo Micropogonias furnieri fisheries gillnet selectivity Brazil The whitemouth croaker is one of the most important demersal resources of southeast and southern Brazil, and it is caught mostly by bottom gillnets. This fishing system has the advantage of a unimodal distribution of size selectivity, where the optimum length corresponds to the mode of the distribution. This study is aimed to calculate the selection factor of gillnets from fishery studies and monitoring programs, and to estimate a generic curve that represents the retention size probability of the most commonly used mesh sizes for catching whitemouth croaker. Data on capture frequencies using 70, 90, 100, 110, 120, and 130 mm mesh were obtained from the states of São Paulo, Santa Catarina and Rio Grande do Sul between 1998 and 2012. The selection factor calculated corresponds to 3.73. Based on the general equation of retention size, we estimated a modal length of 261 mm for the 70 mm mesh, 336 mm for the 90 mm mesh, 373 mm for the 100 mm mesh, 411 mm for the 110 mm mesh, 448 mm for the 120 mm mesh and 485 mm for the 130 mm mesh. The modal lengths estimated in this study were consistent with previous estimations obtained by experimental approach. We discuss the appropriate mesh sizes with respect to the biology of the species, along with the possibility of considering gillnet selectivity to improve fishery catch.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=S0718-560X2016000500010en10.3856/vol44-issue5-fulltext-10
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Micropogonias furnieri fisheries gillnet selectivity Brazil
spellingShingle	Micropogonias furnieri fisheries gillnet selectivity Brazil Queirolo,Dante Pio,Vanessa Mafra Pezzuto,Paulo Ricardo Ávila-da-Silva,Antônio O Haimovici,Manuel Cardoso,Luis Gustavo Gillnet selectivity for whitemouth croaker (Micropogonias furnieri) from southeastern and southern Brazil
description	The whitemouth croaker is one of the most important demersal resources of southeast and southern Brazil, and it is caught mostly by bottom gillnets. This fishing system has the advantage of a unimodal distribution of size selectivity, where the optimum length corresponds to the mode of the distribution. This study is aimed to calculate the selection factor of gillnets from fishery studies and monitoring programs, and to estimate a generic curve that represents the retention size probability of the most commonly used mesh sizes for catching whitemouth croaker. Data on capture frequencies using 70, 90, 100, 110, 120, and 130 mm mesh were obtained from the states of São Paulo, Santa Catarina and Rio Grande do Sul between 1998 and 2012. The selection factor calculated corresponds to 3.73. Based on the general equation of retention size, we estimated a modal length of 261 mm for the 70 mm mesh, 336 mm for the 90 mm mesh, 373 mm for the 100 mm mesh, 411 mm for the 110 mm mesh, 448 mm for the 120 mm mesh and 485 mm for the 130 mm mesh. The modal lengths estimated in this study were consistent with previous estimations obtained by experimental approach. We discuss the appropriate mesh sizes with respect to the biology of the species, along with the possibility of considering gillnet selectivity to improve fishery catch.
author	Queirolo,Dante Pio,Vanessa Mafra Pezzuto,Paulo Ricardo Ávila-da-Silva,Antônio O Haimovici,Manuel Cardoso,Luis Gustavo
author_facet	Queirolo,Dante Pio,Vanessa Mafra Pezzuto,Paulo Ricardo Ávila-da-Silva,Antônio O Haimovici,Manuel Cardoso,Luis Gustavo
author_sort	Queirolo,Dante
title	Gillnet selectivity for whitemouth croaker (Micropogonias furnieri) from southeastern and southern Brazil
title_short	Gillnet selectivity for whitemouth croaker (Micropogonias furnieri) from southeastern and southern Brazil
title_full	Gillnet selectivity for whitemouth croaker (Micropogonias furnieri) from southeastern and southern Brazil
title_fullStr	Gillnet selectivity for whitemouth croaker (Micropogonias furnieri) from southeastern and southern Brazil
title_full_unstemmed	Gillnet selectivity for whitemouth croaker (Micropogonias furnieri) from southeastern and southern Brazil
title_sort	gillnet selectivity for whitemouth croaker (micropogonias furnieri) from 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=S0718-560X2016000500010
work_keys_str_mv	AT queirolodante gillnetselectivityforwhitemouthcroakermicropogoniasfurnierifromsoutheasternandsouthernbrazil AT piovanessamafra gillnetselectivityforwhitemouthcroakermicropogoniasfurnierifromsoutheasternandsouthernbrazil AT pezzutopauloricardo gillnetselectivityforwhitemouthcroakermicropogoniasfurnierifromsoutheasternandsouthernbrazil AT aviladasilvaantonioo gillnetselectivityforwhitemouthcroakermicropogoniasfurnierifromsoutheasternandsouthernbrazil AT haimovicimanuel gillnetselectivityforwhitemouthcroakermicropogoniasfurnierifromsoutheasternandsouthernbrazil AT cardosoluisgustavo gillnetselectivityforwhitemouthcroakermicropogoniasfurnierifromsoutheasternandsouthernbrazil
_version_	1714205172524122112

Gillnet selectivity for whitemouth croaker (Micropogonias furnieri) from southeastern and southern Brazil

Ejemplares similares