Barry, J. P., & Tegner, M. J. (1989). Inferring Demographic Processes from Size-Frequency Distribution: Simple Models Indicate Patterns of Growth and Mortality (Vol. 88).
Schlüsselwörter: Wachstum, statistik, methode, theorie
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Damm, U., & Herrmann, C. (1986). Estimation of Z/K and L infinity from a length distribution when L infinity is assumed to vary between individuals.
Schlüsselwörter: Wachstum, statistik, methode, basic, listing, mathematik, fisch
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Yamagishi, H., Ishioka, K., & Matsumoto, T. (1988). Simulation Study on the Growth Variation of Fish with Special reference to the Exponential and Aymptotic Growth.
Zusammenfassung: Computer simulation of fish growth was conducted in order to clarify the mechanism of individual variation in terms of coefficient of variation (CV) and skewness of frequency distribution (sk). Normal distributions of initial body length, specific growth rate (growth coefficient) and asymptotic value were supposed. In exponential growth accompanied by the changes of distribution of body length from normal to lognormal, both CV and sk continuously increased.
Schlüsselwörter: Wachstum, simulation, sex, methode, theorie, mathematik, statistik
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Yamagishi, H., & Ishioka, K. (1991). Silumation Study on the Growth Variation of Fish with Special Reference to the Mortality by Cannibalism.
Zusammenfassung: In respect to the higher initial mortality in fish by cannibalism, computer simulation of individual growth variation was made in terms of coefficient of variation(CV) and skewness(sk) of frequency distribution. CV of the cannibalistic groups changed similarly to the control groups, but converged on smaller values than the asymptotic CV of the control groups. Sk of the cannibalistic groups finally converged on similar values to those of the control groups after irregular changes in positive values except N-N correspondent type.
Schlüsselwörter: Wachstum, mortalitÄt, simulation, methode, theorie, statistik
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Cloern, J. E., & Nichols, F. H. (1978). A von Bertalanffy Growth Model with a Seasonally Varying Coefficient (Vol. 35).
Schlüsselwörter: Wachstum, modell, theorie, fisch, statistik
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Akamine, T. (1986). Expansion of growth curves using a periodic function and BASIC programs by Marquardt's method.
Zusammenfassung: The growth curves of von Bertalanffy, logistic and Gompertz models were expanded using a periodic function, f (t + 1) = f (t). Each model was expanded into l = l infinity (1-exph sub(1)), l = l infinity /(1 + exph sub(1)) and l = l infinity exp(-exph sub(1)) where h sub(1) = -K(F(t)-F(t sub(0))), F' = f, f = (1 + a)/2 + (1-a)/2 multiplied by cos 2 pi (t-t sub(1)) : a less than or equal to f less than or equal to 1. BASIC programs for each model were written by Marquardt's method. The following subjects were also considered : an expansion into another type, a parameter-error analysis, a comparison with the original model and with Walford's graphical method, and a calculation to determine the extreme points of the growth rate. This expansion of the growth curves is useful and the programs are easily applied to other curves.
Schlüsselwörter: Wachstum, modell, methode, listing, basic, fischerei, statistik, algorithmus
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Haukioja, E., & Hakala, T. (1979). Asymptotic equations in growth studies – an analysis based on Anodonta piscinalis (Mollusca, Unionidae) (Vol. 16).
Schlüsselwörter: Wachstum, methode, vergleich, statistik, muscheln
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Kaufmann, K. W. (1981). Fitting and Using Growth Curves (Vol. 49).
Schlüsselwörter: Wachstum, methode, vergleich, statistik, modell
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Moreau, J., & Moreau, I. (1987). Fitting of von Bertalanffy growth function (VBGF) with two growth checks per year (Vol. 3).
Schlüsselwörter: Wachstum, methode, fisch, statistik, theorie, listing, basic
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Schmieds, U. J. (1981). Ökologische Studien an Fischen des Schlierenseebaches – einem norddeutschen Seeausfluß – III. Das Wachstum der häufigsten Fischarten (Vol. 51).
Schlüsselwörter: Wachstum, Flussbarsch, Flussbarsch, Perca fluviatilis, Rotauge, Rutilus rutilus, Ukelei, Alburnus alburnus, Blicke, Güster, Blicca björkna, Fisch
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