Tracking the southern Brazilian schools of Mugil liza during reproductive migration using VMS of purse seiners

Brazilian mullet Mugil liza is a schooling fish that migrates in fall and winter, leaving estuaries and coastal lagoons to spawn in ocean waters. In order to understand the reproductive migration pattern of southern stock along Brazil's coast, we analyzed data collected through the Brazilian Sa...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lemos,Valéria M, Ávila Troca,Débora F, Castello,Jorge Pablo, Vieira,João Paes
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2016
Materias:	mullets PREPS Vessel Monitoring System (VMS) spawning temperature southern Brazil
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000200005
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-560X2016000200005
record_format	dspace
spelling	oai:scielo:S0718-560X20160002000052016-07-06Tracking the southern Brazilian schools of Mugil liza during reproductive migration using VMS of purse seinersLemos,Valéria MÁvila Troca,Débora FCastello,Jorge PabloVieira,João Paes mullets PREPS Vessel Monitoring System (VMS) spawning temperature southern Brazil Brazilian mullet Mugil liza is a schooling fish that migrates in fall and winter, leaving estuaries and coastal lagoons to spawn in ocean waters. In order to understand the reproductive migration pattern of southern stock along Brazil's coast, we analyzed data collected through the Brazilian Satellite Vessel Tracking Program (Programa Nacional de Rastreamento das Embarcações Pesqueiras por Satélite-PREPS) from 2008 to 2012. The migration period overlaps with the fishing season (May-July) when the licensed purse seine fleet fishes along the southern and southeastern coast of Brazil, motivated to capture mullet by the high value of the roe. During the five fishing seasons the average effort was of 51 active vessels. The average time per season that each vessel navigated in the Speed Compatible with Fishing Operation (SCFO) was 349.3 h, which represented an average of 17% of the total time at sea. From May to July the highest frequency (54%) of SCFO transmissions occurred in June (P < 0.05), and in 95% of the SCFO transmissions the vessels were at depths less than 50 m. The temporal and spatial displacement of the fleet in a south-north direction follows the progression of sea surface temperature SST of 19-21°C (P < 0.05). Most (60%) SCFO signals occurred in areas with this range of temperature, independent of the month and latitude. The south-north displacement of the fleets through the season was similar among the different years (P > 0.05).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.2 20162016-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2016000200005en10.3856/vol44-issue2-fulltext-5
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	mullets PREPS Vessel Monitoring System (VMS) spawning temperature southern Brazil
spellingShingle	mullets PREPS Vessel Monitoring System (VMS) spawning temperature southern Brazil Lemos,Valéria M Ávila Troca,Débora F Castello,Jorge Pablo Vieira,João Paes Tracking the southern Brazilian schools of Mugil liza during reproductive migration using VMS of purse seiners
description	Brazilian mullet Mugil liza is a schooling fish that migrates in fall and winter, leaving estuaries and coastal lagoons to spawn in ocean waters. In order to understand the reproductive migration pattern of southern stock along Brazil's coast, we analyzed data collected through the Brazilian Satellite Vessel Tracking Program (Programa Nacional de Rastreamento das Embarcações Pesqueiras por Satélite-PREPS) from 2008 to 2012. The migration period overlaps with the fishing season (May-July) when the licensed purse seine fleet fishes along the southern and southeastern coast of Brazil, motivated to capture mullet by the high value of the roe. During the five fishing seasons the average effort was of 51 active vessels. The average time per season that each vessel navigated in the Speed Compatible with Fishing Operation (SCFO) was 349.3 h, which represented an average of 17% of the total time at sea. From May to July the highest frequency (54%) of SCFO transmissions occurred in June (P < 0.05), and in 95% of the SCFO transmissions the vessels were at depths less than 50 m. The temporal and spatial displacement of the fleet in a south-north direction follows the progression of sea surface temperature SST of 19-21°C (P < 0.05). Most (60%) SCFO signals occurred in areas with this range of temperature, independent of the month and latitude. The south-north displacement of the fleets through the season was similar among the different years (P > 0.05).
author	Lemos,Valéria M Ávila Troca,Débora F Castello,Jorge Pablo Vieira,João Paes
author_facet	Lemos,Valéria M Ávila Troca,Débora F Castello,Jorge Pablo Vieira,João Paes
author_sort	Lemos,Valéria M
title	Tracking the southern Brazilian schools of Mugil liza during reproductive migration using VMS of purse seiners
title_short	Tracking the southern Brazilian schools of Mugil liza during reproductive migration using VMS of purse seiners
title_full	Tracking the southern Brazilian schools of Mugil liza during reproductive migration using VMS of purse seiners
title_fullStr	Tracking the southern Brazilian schools of Mugil liza during reproductive migration using VMS of purse seiners
title_full_unstemmed	Tracking the southern Brazilian schools of Mugil liza during reproductive migration using VMS of purse seiners
title_sort	tracking the southern brazilian schools of mugil liza during reproductive migration using vms of purse seiners
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=S0718-560X2016000200005
work_keys_str_mv	AT lemosvaleriam trackingthesouthernbrazilianschoolsofmugillizaduringreproductivemigrationusingvmsofpurseseiners AT avilatrocadeboraf trackingthesouthernbrazilianschoolsofmugillizaduringreproductivemigrationusingvmsofpurseseiners AT castellojorgepablo trackingthesouthernbrazilianschoolsofmugillizaduringreproductivemigrationusingvmsofpurseseiners AT vieirajoaopaes trackingthesouthernbrazilianschoolsofmugillizaduringreproductivemigrationusingvmsofpurseseiners
_version_	1714205159456768000

Tracking the southern Brazilian schools of Mugil liza during reproductive migration using VMS of purse seiners

Ejemplares similares