Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons

Autores
Betti, Paola; Brown, Daniel Roberto; Temperoni, Brenda; Machinandiarena, Laura; Ehrlich, Martín David
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Argentine hake (Merluccius hubbsi) represents the most abundant fish resource in the Southwest Atlantic Ocean. Larval age, daily growth, and temporal distribution of birthdates of individuals collected throughout two reproductive seasons (2004–2005 and 2009) were studied by analyzing daily growth increments in their sagittae otoliths. Samples were obtained in the Northern Patagonian shelf, which constitutes the main spawning area reported for this species. A total of 365 hake larvae sampled with different types of gears was used in this study. Back-calculated hatching periods extended from mid November to the end of March and several larval cohorts were identified. Length-at-age relationships were best described by exponential models: TL = 2.227 exp(0.032t) and TL = 2.581 exp(0.035t) (for 2004–2005 and 2009, respectively). Growth rates obtained by deriving the models ranged from 0.07 to 0.48 mm day−1 in 2004–2005, and from 0.09 to 0.74 mm day−1 in 2009. Differences in larval growth were detected between both periods and within them; differential growth would not be attributed to thermal effect since temperature values were quite similar along both seasons. Prey availability could explain the growth variation detected within the 2009 season.
Fil: Betti, Paola. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Brown, Daniel Roberto. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Temperoni, Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
Fil: Machinandiarena, Laura. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Ehrlich, Martín David. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Materia
Age
Growth
Hake Larvae
Merluccius Hubbsi
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/25636
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/25636
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network_name_str CONICET Digital (CONICET)
spelling Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasonsBetti, PaolaBrown, Daniel RobertoTemperoni, BrendaMachinandiarena, LauraEhrlich, Martín DavidAgeGrowthHake LarvaeMerluccius Hubbsihttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1https://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4The Argentine hake (Merluccius hubbsi) represents the most abundant fish resource in the Southwest Atlantic Ocean. Larval age, daily growth, and temporal distribution of birthdates of individuals collected throughout two reproductive seasons (2004–2005 and 2009) were studied by analyzing daily growth increments in their sagittae otoliths. Samples were obtained in the Northern Patagonian shelf, which constitutes the main spawning area reported for this species. A total of 365 hake larvae sampled with different types of gears was used in this study. Back-calculated hatching periods extended from mid November to the end of March and several larval cohorts were identified. Length-at-age relationships were best described by exponential models: TL = 2.227 exp(0.032t) and TL = 2.581 exp(0.035t) (for 2004–2005 and 2009, respectively). Growth rates obtained by deriving the models ranged from 0.07 to 0.48 mm day−1 in 2004–2005, and from 0.09 to 0.74 mm day−1 in 2009. Differences in larval growth were detected between both periods and within them; differential growth would not be attributed to thermal effect since temperature values were quite similar along both seasons. Prey availability could explain the growth variation detected within the 2009 season.Fil: Betti, Paola. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Brown, Daniel Roberto. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Temperoni, Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; ArgentinaFil: Machinandiarena, Laura. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Ehrlich, Martín David. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaElsevier Science2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/25636Betti, Paola; Brown, Daniel Roberto; Temperoni, Brenda; Machinandiarena, Laura; Ehrlich, Martín David; Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons; Elsevier Science; Fisheries Research; 160; 2-2014; 69-760165-7836CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0165783614000587info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fishres.2014.02.018info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:00:11Zoai:ri.conicet.gov.ar:11336/25636instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:00:11.292CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons
title Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons
spellingShingle Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons
Betti, Paola
Age
Growth
Hake Larvae
Merluccius Hubbsi
title_short Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons
title_full Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons
title_fullStr Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons
title_full_unstemmed Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons
title_sort Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons
dc.creator.none.fl_str_mv Betti, Paola
Brown, Daniel Roberto
Temperoni, Brenda
Machinandiarena, Laura
Ehrlich, Martín David
author Betti, Paola
author_facet Betti, Paola
Brown, Daniel Roberto
Temperoni, Brenda
Machinandiarena, Laura
Ehrlich, Martín David
author_role author
author2 Brown, Daniel Roberto
Temperoni, Brenda
Machinandiarena, Laura
Ehrlich, Martín David
author2_role author
author
author
author
dc.subject.none.fl_str_mv Age
Growth
Hake Larvae
Merluccius Hubbsi
topic Age
Growth
Hake Larvae
Merluccius Hubbsi
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv The Argentine hake (Merluccius hubbsi) represents the most abundant fish resource in the Southwest Atlantic Ocean. Larval age, daily growth, and temporal distribution of birthdates of individuals collected throughout two reproductive seasons (2004–2005 and 2009) were studied by analyzing daily growth increments in their sagittae otoliths. Samples were obtained in the Northern Patagonian shelf, which constitutes the main spawning area reported for this species. A total of 365 hake larvae sampled with different types of gears was used in this study. Back-calculated hatching periods extended from mid November to the end of March and several larval cohorts were identified. Length-at-age relationships were best described by exponential models: TL = 2.227 exp(0.032t) and TL = 2.581 exp(0.035t) (for 2004–2005 and 2009, respectively). Growth rates obtained by deriving the models ranged from 0.07 to 0.48 mm day−1 in 2004–2005, and from 0.09 to 0.74 mm day−1 in 2009. Differences in larval growth were detected between both periods and within them; differential growth would not be attributed to thermal effect since temperature values were quite similar along both seasons. Prey availability could explain the growth variation detected within the 2009 season.
Fil: Betti, Paola. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Brown, Daniel Roberto. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Temperoni, Brenda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Subsede Instituto Nacional de Investigación y Desarrollo Pesquero; Argentina
Fil: Machinandiarena, Laura. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Ehrlich, Martín David. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
description The Argentine hake (Merluccius hubbsi) represents the most abundant fish resource in the Southwest Atlantic Ocean. Larval age, daily growth, and temporal distribution of birthdates of individuals collected throughout two reproductive seasons (2004–2005 and 2009) were studied by analyzing daily growth increments in their sagittae otoliths. Samples were obtained in the Northern Patagonian shelf, which constitutes the main spawning area reported for this species. A total of 365 hake larvae sampled with different types of gears was used in this study. Back-calculated hatching periods extended from mid November to the end of March and several larval cohorts were identified. Length-at-age relationships were best described by exponential models: TL = 2.227 exp(0.032t) and TL = 2.581 exp(0.035t) (for 2004–2005 and 2009, respectively). Growth rates obtained by deriving the models ranged from 0.07 to 0.48 mm day−1 in 2004–2005, and from 0.09 to 0.74 mm day−1 in 2009. Differences in larval growth were detected between both periods and within them; differential growth would not be attributed to thermal effect since temperature values were quite similar along both seasons. Prey availability could explain the growth variation detected within the 2009 season.
publishDate 2014
dc.date.none.fl_str_mv 2014-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/25636
Betti, Paola; Brown, Daniel Roberto; Temperoni, Brenda; Machinandiarena, Laura; Ehrlich, Martín David; Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons; Elsevier Science; Fisheries Research; 160; 2-2014; 69-76
0165-7836
CONICET Digital
CONICET
url http://hdl.handle.net/11336/25636
identifier_str_mv Betti, Paola; Brown, Daniel Roberto; Temperoni, Brenda; Machinandiarena, Laura; Ehrlich, Martín David; Larval growth of hake (Merluccius hubbsi) in the Patagonian shelf: Analysis of two reproductive seasons; Elsevier Science; Fisheries Research; 160; 2-2014; 69-76
0165-7836
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0165783614000587
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fishres.2014.02.018
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269624164417536
score 13.13397

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