Overlap of the reproductive cycle and recruitment of the four main species caught by the purse seine fleet in Brazil

The purse seine fleet in southeastern and southern Brazil has the Brazilian sardine Sardinella brasiliensis as the target species, and fishery management is based solely on its life cycle. This study aimed to analyze a possible overlap of the reproductive cycle and recruitment of the main species ca...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Petermann,Angélica, Schwingel,Paulo Ricardo
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2016
Materias:	reproduction recruitment Brazilian sardine purse seine fishery fishery management Brazil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000500017
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-560X2016000500017
record_format	dspace
spelling	oai:scielo:S0718-560X20160005000172016-12-15Overlap of the reproductive cycle and recruitment of the four main species caught by the purse seine fleet in BrazilPetermann,AngélicaSchwingel,Paulo Ricardo reproduction recruitment Brazilian sardine purse seine fishery fishery management Brazil The purse seine fleet in southeastern and southern Brazil has the Brazilian sardine Sardinella brasiliensis as the target species, and fishery management is based solely on its life cycle. This study aimed to analyze a possible overlap of the reproductive cycle and recruitment of the main species caught by seine fleet. During the daily program of industrial fishing monitoring in the ports of Itajaí and Navegantes (Santa Catarina) biometrics were performed twice a month at landings between 2000 and 2013 for posterior analysis in laboratory abroad. The samples analyzed did not include part of the reproductive period and the recruitment due to the closed seasons. The size at first maturity (L50) was obtained by adjusting the proportion of adult females to a logistic model. The reproductive period was determined by analyzing gonadosomatic index and proportion of the maturation stages. Recruitment was determined from the length distribution and the ratio of immature throughout the year. L50 determined was 18.60 cm for S. brasiliensis, 19.58 cm for Opisthonema oglinum, 18.48 cm for Chloroscombrus chryssurus and 21.22 cm for Scomber japonicus. The analyzed species overlapped spawning period between November and April and recruitment in June and July. In the case of directing fishing effort to these non-target species, the possibility of inclusion of these species in closed seasons of target species could ensure a better management and consequently the sustainability of this activity.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=S0718-560X2016000500017en10.3856/vol44-issue5-fulltext-17
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	reproduction recruitment Brazilian sardine purse seine fishery fishery management Brazil
spellingShingle	reproduction recruitment Brazilian sardine purse seine fishery fishery management Brazil Petermann,Angélica Schwingel,Paulo Ricardo Overlap of the reproductive cycle and recruitment of the four main species caught by the purse seine fleet in Brazil
description	The purse seine fleet in southeastern and southern Brazil has the Brazilian sardine Sardinella brasiliensis as the target species, and fishery management is based solely on its life cycle. This study aimed to analyze a possible overlap of the reproductive cycle and recruitment of the main species caught by seine fleet. During the daily program of industrial fishing monitoring in the ports of Itajaí and Navegantes (Santa Catarina) biometrics were performed twice a month at landings between 2000 and 2013 for posterior analysis in laboratory abroad. The samples analyzed did not include part of the reproductive period and the recruitment due to the closed seasons. The size at first maturity (L50) was obtained by adjusting the proportion of adult females to a logistic model. The reproductive period was determined by analyzing gonadosomatic index and proportion of the maturation stages. Recruitment was determined from the length distribution and the ratio of immature throughout the year. L50 determined was 18.60 cm for S. brasiliensis, 19.58 cm for Opisthonema oglinum, 18.48 cm for Chloroscombrus chryssurus and 21.22 cm for Scomber japonicus. The analyzed species overlapped spawning period between November and April and recruitment in June and July. In the case of directing fishing effort to these non-target species, the possibility of inclusion of these species in closed seasons of target species could ensure a better management and consequently the sustainability of this activity.
author	Petermann,Angélica Schwingel,Paulo Ricardo
author_facet	Petermann,Angélica Schwingel,Paulo Ricardo
author_sort	Petermann,Angélica
title	Overlap of the reproductive cycle and recruitment of the four main species caught by the purse seine fleet in Brazil
title_short	Overlap of the reproductive cycle and recruitment of the four main species caught by the purse seine fleet in Brazil
title_full	Overlap of the reproductive cycle and recruitment of the four main species caught by the purse seine fleet in Brazil
title_fullStr	Overlap of the reproductive cycle and recruitment of the four main species caught by the purse seine fleet in Brazil
title_full_unstemmed	Overlap of the reproductive cycle and recruitment of the four main species caught by the purse seine fleet in Brazil
title_sort	overlap of the reproductive cycle and recruitment of the four main species caught by the purse seine fleet in 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=S0718-560X2016000500017
work_keys_str_mv	AT petermannangelica overlapofthereproductivecycleandrecruitmentofthefourmainspeciescaughtbythepurseseinefleetinbrazil AT schwingelpauloricardo overlapofthereproductivecycleandrecruitmentofthefourmainspeciescaughtbythepurseseinefleetinbrazil
_version_	1714205173670215680

Overlap of the reproductive cycle and recruitment of the four main species caught by the purse seine fleet in Brazil

Ejemplares similares