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Autor  |
Wang, Y. G.; Thomas, M. R. |
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Titel |
Accounting for individual variability in the von Bertalanffy growth model |
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Jahr |
1995 |
Publikation |
Can. J. Fish. Aquat. Sci. J. Can. Sci. Halieut. Aquat |
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52 |
Ausgabe |
7 |
Seiten |
1368-1375 |
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Schlüsselwörter |
Fisch, Statistik, Methode, Vergleich, Wachstum, Bertalanffy, Faben |
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Zusammenfassung |
Estimation of von Bertalanffy growth parameters has received considerable attention in fisheries research. Since Sainsbury much of this research effort has centered on accounting for individual variability in the growth parameters. In this paper we demonstrate that, in analysis of tagging data, Sainsbury's method and its derivatives do not, in general, satisfactorily account for individual variability in growth, leading to inconsistent parameter estimates (the bias does not tend to zero as sample size increases to infinity). The bias arises because these methods do not use appropriate conditional expectations as a basis for estimation. |
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CSIRO IPP&P Biometrics Unit, CSIRO Div. Fish., Box 120, Cleveland, Queensland 4163, Australia |
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Rufnummer |
524 |
Signatur |
2323 |
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