Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia

Autores
Lopez Cazorla, Andrea Cecilia; Sidorkewicj, Nora Silvia
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Age, growth and reproductive characteristics of creole perch, Percichthys trucha, were investigated in the Negro River, southern Argentina from samples collected seasonally, December 1994-December 1995. Age was estimated via scale and whole otolith reading methods. Total length (n=413) ranged from 103 to 432mm, and weight from 12 to 1042g. Significant differences between the length-weight relationships of males and females were detected (P<0.05). Isometric growth was observed in juveniles and males, whereas total population and females exhibited positive allometric growth. The marking pattern in scales and otoliths followed an annual rhythm, with the formation of only one annulus in scales and only one hyaline band in otoliths during autumn-winter. The oldest males were 5years old whereas maximum age in females was 12years from scales and 15years from otoliths. Because scales were found to underestimate age in individuals older than 4years, otoliths were considered to be the best structures for creole perch age determination. Gompertz growth parameters based on otolith data were L∞: 428.0mm, k=0.46 and t0=0.43 for total population (r=0.90), L∞: 410.7mm, k= 0.42 and t0=0.46 for males (r=0.91), and L∞: 434.1mm, and k=0.49 and t0=0.43 for females (r=0.91). Lengths at first maturity (TL50) were 260 and 241mm in males and females, respectively, both of which corresponded to ages between 1 and 2years. Macroscopic gonad inspection and the high percentage of juveniles captured during summer indicated that spawning begins at the end of spring. © 2010 Blackwell Verlag, Berlin.
Fil: Lopez Cazorla, Andrea Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Sidorkewicj, Nora Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Materia
Percichthys Trucha
Creole Perch
South American Perch
Scales
Otoliths
Age
Growth
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:11336/66930
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/66930
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean PatagoniaLopez Cazorla, Andrea CeciliaSidorkewicj, Nora SilviaPercichthys TruchaCreole PerchSouth American PerchScalesOtolithsAgeGrowthhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Age, growth and reproductive characteristics of creole perch, Percichthys trucha, were investigated in the Negro River, southern Argentina from samples collected seasonally, December 1994-December 1995. Age was estimated via scale and whole otolith reading methods. Total length (n=413) ranged from 103 to 432mm, and weight from 12 to 1042g. Significant differences between the length-weight relationships of males and females were detected (P<0.05). Isometric growth was observed in juveniles and males, whereas total population and females exhibited positive allometric growth. The marking pattern in scales and otoliths followed an annual rhythm, with the formation of only one annulus in scales and only one hyaline band in otoliths during autumn-winter. The oldest males were 5years old whereas maximum age in females was 12years from scales and 15years from otoliths. Because scales were found to underestimate age in individuals older than 4years, otoliths were considered to be the best structures for creole perch age determination. Gompertz growth parameters based on otolith data were L∞: 428.0mm, k=0.46 and t0=0.43 for total population (r=0.90), L∞: 410.7mm, k= 0.42 and t0=0.46 for males (r=0.91), and L∞: 434.1mm, and k=0.49 and t0=0.43 for females (r=0.91). Lengths at first maturity (TL50) were 260 and 241mm in males and females, respectively, both of which corresponded to ages between 1 and 2years. Macroscopic gonad inspection and the high percentage of juveniles captured during summer indicated that spawning begins at the end of spring. © 2010 Blackwell Verlag, Berlin.Fil: Lopez Cazorla, Andrea Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaFil: Sidorkewicj, Nora Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; ArgentinaWiley Blackwell Publishing, Inc2011-02info: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/11336/66930Lopez Cazorla, Andrea Cecilia; Sidorkewicj, Nora Silvia; Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia; Wiley Blackwell Publishing, Inc; Journal of Applied Ichthyology - Zeitschrift für Angewandte Ichthyologie; 27; 1; 2-2011; 30-380175-8659CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0426.2010.01574.xinfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/j.1439-0426.2010.01574.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:00:09Zoai:ri.conicet.gov.ar:11336/66930instacron: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 10:00:09.834CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia
title Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia
spellingShingle Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia
Lopez Cazorla, Andrea Cecilia
Percichthys Trucha
Creole Perch
South American Perch
Scales
Otoliths
Age
Growth
title_short Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia
title_full Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia
title_fullStr Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia
title_full_unstemmed Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia
title_sort Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia
dc.creator.none.fl_str_mv Lopez Cazorla, Andrea Cecilia
Sidorkewicj, Nora Silvia
author Lopez Cazorla, Andrea Cecilia
author_facet Lopez Cazorla, Andrea Cecilia
Sidorkewicj, Nora Silvia
author_role author
author2 Sidorkewicj, Nora Silvia
author2_role author
dc.subject.none.fl_str_mv Percichthys Trucha
Creole Perch
South American Perch
Scales
Otoliths
Age
Growth
topic Percichthys Trucha
Creole Perch
South American Perch
Scales
Otoliths
Age
Growth
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Age, growth and reproductive characteristics of creole perch, Percichthys trucha, were investigated in the Negro River, southern Argentina from samples collected seasonally, December 1994-December 1995. Age was estimated via scale and whole otolith reading methods. Total length (n=413) ranged from 103 to 432mm, and weight from 12 to 1042g. Significant differences between the length-weight relationships of males and females were detected (P<0.05). Isometric growth was observed in juveniles and males, whereas total population and females exhibited positive allometric growth. The marking pattern in scales and otoliths followed an annual rhythm, with the formation of only one annulus in scales and only one hyaline band in otoliths during autumn-winter. The oldest males were 5years old whereas maximum age in females was 12years from scales and 15years from otoliths. Because scales were found to underestimate age in individuals older than 4years, otoliths were considered to be the best structures for creole perch age determination. Gompertz growth parameters based on otolith data were L∞: 428.0mm, k=0.46 and t0=0.43 for total population (r=0.90), L∞: 410.7mm, k= 0.42 and t0=0.46 for males (r=0.91), and L∞: 434.1mm, and k=0.49 and t0=0.43 for females (r=0.91). Lengths at first maturity (TL50) were 260 and 241mm in males and females, respectively, both of which corresponded to ages between 1 and 2years. Macroscopic gonad inspection and the high percentage of juveniles captured during summer indicated that spawning begins at the end of spring. © 2010 Blackwell Verlag, Berlin.
Fil: Lopez Cazorla, Andrea Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
Fil: Sidorkewicj, Nora Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia; Argentina
description Age, growth and reproductive characteristics of creole perch, Percichthys trucha, were investigated in the Negro River, southern Argentina from samples collected seasonally, December 1994-December 1995. Age was estimated via scale and whole otolith reading methods. Total length (n=413) ranged from 103 to 432mm, and weight from 12 to 1042g. Significant differences between the length-weight relationships of males and females were detected (P<0.05). Isometric growth was observed in juveniles and males, whereas total population and females exhibited positive allometric growth. The marking pattern in scales and otoliths followed an annual rhythm, with the formation of only one annulus in scales and only one hyaline band in otoliths during autumn-winter. The oldest males were 5years old whereas maximum age in females was 12years from scales and 15years from otoliths. Because scales were found to underestimate age in individuals older than 4years, otoliths were considered to be the best structures for creole perch age determination. Gompertz growth parameters based on otolith data were L∞: 428.0mm, k=0.46 and t0=0.43 for total population (r=0.90), L∞: 410.7mm, k= 0.42 and t0=0.46 for males (r=0.91), and L∞: 434.1mm, and k=0.49 and t0=0.43 for females (r=0.91). Lengths at first maturity (TL50) were 260 and 241mm in males and females, respectively, both of which corresponded to ages between 1 and 2years. Macroscopic gonad inspection and the high percentage of juveniles captured during summer indicated that spawning begins at the end of spring. © 2010 Blackwell Verlag, Berlin.
publishDate 2011
dc.date.none.fl_str_mv 2011-02
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/11336/66930
Lopez Cazorla, Andrea Cecilia; Sidorkewicj, Nora Silvia; Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia; Wiley Blackwell Publishing, Inc; Journal of Applied Ichthyology - Zeitschrift für Angewandte Ichthyologie; 27; 1; 2-2011; 30-38
0175-8659
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66930
identifier_str_mv Lopez Cazorla, Andrea Cecilia; Sidorkewicj, Nora Silvia; Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia; Wiley Blackwell Publishing, Inc; Journal of Applied Ichthyology - Zeitschrift für Angewandte Ichthyologie; 27; 1; 2-2011; 30-38
0175-8659
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0426.2010.01574.x
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/j.1439-0426.2010.01574.x
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 Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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
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score 13.13397

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