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Misra, R. K. (1980). Statistical Comparisons of Several Growth Curves of the von Bertalanffy Type (Vol. 37).
Schlüsselwörter: Wachstum, theorie, vergleich, mathematik, statistik, modell
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Misra, R. K., & Uthe, J. F. (1987). Methods of Time Trends Analysis Applied to Contaminant Levels in Canadian Atlantic Cod (Gadus morhua) (Vol. 44).
Schlüsselwörter: Trend, anova, methode, fischerei, umweltverschmutzung
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Schweigert, J. F. (1991). Multivariate Description of Pacipic Herring (clupea Harengus p.) Stocks from Size and Age Information (Vol. 48).
Schlüsselwörter: Fischerei, statistik, multivariat, genetik, morphologie, methode
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France, R., Holmes, J., & Lynch, A. (1991). Use of size-frequency data to estimate the age composition of crayfish populations (Vol. 48).
Zusammenfassung: Age-classes in crayfish populations can be determined from size-frequency data provided 4 tents are adhered to only crayfish collected from areas of rock substrate are used; trapping are excluded; species do not have longevities exceeding about 4 yr; and most importantly, sample sizes are greater than about 200. Studies that have failed to follow these guidelines have met with limited success in dissecting mixed frequency distributions. Further, 3 validation procedures must be undertaken: temporal replication within molting events to measure the precision of both data collection and size-frequency analysis; corroboration with known-age crayfish from either field recaptures or laboratory molt increments; and concordance with independent analysis of the mean size at onset of sexual maturity. When these checks support the size-frequency results, population age composition and analyses of rates of growth or mortality can be considered reliable.
Schlüsselwörter: Krebs, lÄngenfrequenz, methode, statistik, population
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Rose, G. A. (1992). Indices of Total Stock Biomass in the “Nothern” and Gulf of St. Lawrence Atlantic Cod (Gadus morhua) Stocks Derived from Time Series Analyses of Fixed Gear (Trap) Catches (Vol. 49).
Schlüsselwörter: Fischerei, zeitreihe, statistik, population
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Koslow, J. A. (1992). Fecundity and the Stock-Recruitment Relationship (Vol. 49).
Schlüsselwörter: Fischerei, population, modell, statistik, sr
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Arnason, A. N., Papst, M. H., & Hopky, G. E. (1992). Modelling the Increase in Variance of Fish Weight (Vol. 49).
Schlüsselwörter: Fischerei, statistik, wachstum, modell
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Jensen, A. L. (1986). Functional Regression and Correlation Analysis (Vol. 43).
Schlüsselwörter: Fischerei, statistik, regression, modell
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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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Nemec, A. F. L., & Brinkhurst, R. O. (1988). Using the Bootstrap to Assess Statistical Significance in the Cluster Analysis of Species Abundance Data (Vol. 45).
Schlüsselwörter: Fischerei, statistik, cluster, methode, modell
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