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Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP) >
2. INIDEP Informe Técnico >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1834/2422
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| Title: | Relación largo-peso y largo-edad de primera madurez sexual de la merluza |
| Other Titles: | Length-weight relation of hake at first sexual maturity |
| Authors: | Simonazzi, M. |
| ASFA Terms: | Length-weight relationships
Sexual maturity
Age at recruitment |
| Issue Date: | 2003 |
| Publisher: | Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero |
| Citation: | INIDEP informe técnico, 51. p. 11-26 |
| Abstract: | 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. |
| URI: | http://hdl.handle.net/1834/2422 |
| ISSN: | 0327-9642 |
| Appears in Collections: | 2. INIDEP Informe Técnico
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