Relación largo-peso y largo-edad de primera madurez sexual de la merluza
Estimations were made on the basis of a subsample of 6,734 individuals of Merluccius hubbsi from the Argentine Sea south of 41°S. Length-weight relation potential regression parameters were a=0.00950863, 0.01093448 and 0.01096117b=2.90831652, 2.86558431 and 2.86583191 for males, females and total individuals, respectively. The Newton algorithm was used to minimize the residuals. Maturity ogives were estimated with the logistic model adjusted by no lineal minimum quadratic ordinates. Length at first maturity at 50 was 33.79 cm for males and 35.38 cm for females. Age at first maturity estimated with the same model adjusted to the time elapsed from birth to catching was 2.61 and 2.67 years for males and females, respectively. Good fitting in all regressions was obtained.
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Format: | Journal Contribution biblioteca |
Language: | Spanish / Castilian |
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Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero
2003
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Subjects: | Sexual maturity, Length-weight relationships, Age at recruitment, |
Online Access: | http://hdl.handle.net/1834/2422 |
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dig-aquadocs-1834-24222021-05-19T06:23:18Z Relación largo-peso y largo-edad de primera madurez sexual de la merluza Length-weight relation of hake at first sexual maturity Simonazzi, M. Sexual maturity Length-weight relationships Sexual maturity Age at recruitment Estimations were made on the basis of a subsample of 6,734 individuals of Merluccius hubbsi from the Argentine Sea south of 41°S. Length-weight relation potential regression parameters were a=0.00950863, 0.01093448 and 0.01096117b=2.90831652, 2.86558431 and 2.86583191 for males, females and total individuals, respectively. The Newton algorithm was used to minimize the residuals. Maturity ogives were estimated with the logistic model adjusted by no lineal minimum quadratic ordinates. Length at first maturity at 50 was 33.79 cm for males and 35.38 cm for females. Age at first maturity estimated with the same model adjusted to the time elapsed from birth to catching was 2.61 and 2.67 years for males and females, respectively. Good fitting in all regressions was obtained. En: Tringali, L.S.; Bezzi, S.I.; eds.Aportes para la evaluación del recurso merluza (Merluccius hubbsi) al sur de los 41°S. Año 1999. Published Merlucciidae, Merluccius hubbsi, merluza 2008-05-31T13:27:24Z 2008-05-31T13:27:24Z 2003 Journal Contribution INIDEP informe técnico, 51. p. 11-26 0327-9642 http://hdl.handle.net/1834/2422 es Argentina, Patagonia Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero |
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Sexual maturity Length-weight relationships Sexual maturity Age at recruitment Sexual maturity Length-weight relationships Sexual maturity Age at recruitment |
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Sexual maturity Length-weight relationships Sexual maturity Age at recruitment Sexual maturity Length-weight relationships Sexual maturity Age at recruitment Simonazzi, M. Relación largo-peso y largo-edad de primera madurez sexual de la merluza |
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Estimations were made on the basis of a subsample of 6,734 individuals of Merluccius hubbsi from the Argentine Sea south of 41°S. Length-weight relation potential regression parameters were a=0.00950863, 0.01093448 and 0.01096117b=2.90831652, 2.86558431 and 2.86583191 for males, females and total individuals, respectively. The Newton algorithm was used to minimize the residuals. Maturity ogives were estimated with the logistic model adjusted by no lineal minimum quadratic ordinates. Length at first maturity at 50 was 33.79 cm for males and 35.38 cm for females. Age at first maturity estimated with the same model adjusted to the time elapsed from birth to catching was 2.61 and 2.67 years for males and females, respectively. Good fitting in all regressions was obtained. |
format |
Journal Contribution |
topic_facet |
Sexual maturity Length-weight relationships Sexual maturity Age at recruitment |
author |
Simonazzi, M. |
author_facet |
Simonazzi, M. |
author_sort |
Simonazzi, M. |
title |
Relación largo-peso y largo-edad de primera madurez sexual de la merluza |
title_short |
Relación largo-peso y largo-edad de primera madurez sexual de la merluza |
title_full |
Relación largo-peso y largo-edad de primera madurez sexual de la merluza |
title_fullStr |
Relación largo-peso y largo-edad de primera madurez sexual de la merluza |
title_full_unstemmed |
Relación largo-peso y largo-edad de primera madurez sexual de la merluza |
title_sort |
relación largo-peso y largo-edad de primera madurez sexual de la merluza |
publisher |
Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero |
publishDate |
2003 |
url |
http://hdl.handle.net/1834/2422 |
work_keys_str_mv |
AT simonazzim relacionlargopesoylargoedaddeprimeramadurezsexualdelamerluza AT simonazzim lengthweightrelationofhakeatfirstsexualmaturity |
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1756075397702746112 |