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Chen, Y., Jackson, D. A., & Harvey, H. H. (1992). A comparison of von Bertalanffy and polynomial functions in modelling fish growth data (Vol. 49).
Zusammenfassung: We compared the von Bertalanffy growth function (VBGF) and five polynormial functions (PF) in modelling fish growth for 16 populations comprising six species of freshwater fishes. Ranked results of the variance explained by each growth function indicated that VBGF described growth data better than three- and four-parameter polynomial functions. Log-transforming length and age greatly improved the goodness-of-fit of the three-parameter polynomial function. Statistical comparison of growth between populations or sexes was done using a general linear model for polynomial functions. The VBGF proved to be the best growth model for all 16 populations.
Schlüsselwörter: Fischerei, wachstum, methode, theorie, modell, statistik
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English, K. K., & Bocking, R. C. (1992). A Robust Procedure for Estimating Salmon Escapement based on the Area-Under-the-Curve Method (Vol. 49).
Schlüsselwörter: Fischerei, population, wachstum, methode, mathematik, theorie
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Gramann, P. (1992). Anreicherung von polychlorierten Biphenylen in Fischen der Bornhöveder Seenkette. Kiel: Christian-Alberts-Universität.
Schlüsselwörter: Fisch, Toxikologie, Belastung
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Weckert, R. P. (1992). Auf Teamwork programmiert – Object Linking and Embedding.
Schlüsselwörter: Windows, ole, dde, zusammenfassung
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Ricker, W. E. (1992). Back-Calculation of Fish Lengths Based on Proportionality between Scale and Length Increments (Vol. 49).
Schlüsselwörter: Fischerei, statistik, methode, wachstum
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Heinzel, G. (1992). Beliebig genau.
Schlüsselwörter: C, mathematik, methode, listing
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Dehus, P. (1992). Bestandsgröße und Nahrungsbeziehungen von Cypriniden und Barschen in kleinen, eutrophen Seen (Vol. 55).
Schlüsselwörter: Fisch, Perca fluviatilis, Rutilus rutilus, Abramis brama, Nahrung, Wachstum, Alter
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Terceiro, M., Fournier, D. A., & Sibert, J. R. (1992). Comparative Performance of MULTIFAN and Shepherd_s Length Composition Analysis (SRLCA) on Simulated Length-Frequency Distributions (Vol. 121).
Zusammenfassung: The authors simulated length-frequency distributions for 3-, 7-, and 13-age-class exploited populations (Peprilus triacanthus, Gadus morhua, Paralichthys dentatus, Pomatomus saltatrix ) to compare the performance of Shepherd's length composition analysis (SRLCA) and MULTIFAN in resolving the distributions to age frequencies. The length distributions were characterized by von Bertalanffy growth, variable recruitment, variable mortality, partial selectivity of fishing gear for the youngest age-groups, and a length-dependent trend in the standard deviation in length at age. Comparative performance of SRLCA and MULTIFAN was assessed quantitatively by using the Kolmogorov-Smirnov cumulative distribution test to compare calculated proportions at age with the simulated values. Shepherd's analysis provided a good return for the amount of computational resources invested, with limited subjective user input. In contrast, MULTIFAN offered a much more complex but powerful estimation technique, and performed consistently better than SRLCA in matching the simulated proportions at age.
Schlüsselwörter: Statistik, modell, lÄngenfrequenz, wachstum
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Spratte, S., & Hartmann, U. (1992). Daten zur limnischen Fauna im Eidergebiet. Kiel: Ministerium für Ernährung, Landwirtschaft, Forsten und Fischerei des Landes Schleswig-Holstein.
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Patzner, R., & Riehl, R. (1992). Die Eier heimischer Fische: 1. Rutte, Lota lota L. (1758), Gadidae (Vol. 45).
Schlüsselwörter: Fisch, Ei, Rutte, Trüsche, Quappe, Lota lota, Fortpflanzung
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