Sterba, G. (1957). Die Schmerlenartigen (0thVol. Band III).
Schlüsselwörter: Fischerei, Anatomie, Biologie, Grundlagen, Cobitidae, Schmerle
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Mohn, R. (1991). Length-Based Virtual Population Analysis; A Review and Swordfish Example.
Zusammenfassung: Length-based population analyses have had a fairly long but not too successful history. These methods are required over a range of situations from when aging is impossible to when it is difficult or prohibitively expensive. There have been 3 sorts of approaches: 1) modal analysis to convert length frequencies to ages 2) age-length key enhancement and 3) imbedded growth models. The last group is what is generally known as length-based methods and the focus of this review. At the 1991 ICES Methods Working Group, 5 techniques were compared and these results are summarized. Two of these techniques, cohort slicing and length-based ADAPT, are applied to swordfish (Xiphias gladius ) data. The imbedded growth model for the former technique is the mean size at age while the latter uses the distribution of size at age. A new method is also presented which begins with cohort slicing then estimates numbers at age and enhances an inferred age-length key at each step of an iterative process.
Schlüsselwörter: Fischerei, population, cpue, lÄngenfrequenz, wachstum, modell, statistik
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Geldhauser, F. (1992). Die kontrollierte Vermehrung des Schlammpeitzgers (Misgurnus fosssilis L.) (Vol. 43).
Zusammenfassung: (Dbo).
Schlüsselwörter: Fischerei, Reife, Wachstum, Methode, Misgurnus fossilis, Schlammpeitzger, Fisch
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Dégerine, S. (1990). Canonical Partial Autocorrelation Function of a Multivariate Time Series (Vol. 18).
Schlüsselwörter: Zeitreihe, mathematik, theorie, trend, statistik
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Mittnik, S. (1990). Computation of Theoretical Autocovariance Matrices of Multivariate Autoregressive Moving Average Time Series (Vol. 52).
Schlüsselwörter: Mathematik, zeitreihe, modell, theorie, statistik
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Shorrock, G. (1990). Improved Confidence Intervals for a Normal Variance (Vol. 18).
Schlüsselwörter: Mathematik, statistik, theorie, modell, Grundlage
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Eckmann, R., Gaedke, U., & Wetzlar, H. J. (1988). Effects of Climatic and Density-Dependent Factors on Year-Class Strength of Coregonus lavaretus in Lake Constance (Vol. 45).
Zusammenfassung: The influences of density-dependent and density-independent factors on year-class strength (YCS) of Corogonus lavaretus in Lake Constance were studied by multiple linear regression analyses for the period from 1962 to 1982. Meteorological conditions that lead to early thermal stratification of the lake in April are of prime importance for YCS and account for 41% of the total YCS variance. Zooplankton concentration during spring has no significant influence on YCS. The extensive stocking program on the lake (50-200 million larvae stocked per year) significantly supports YCS, but this relationship becomes apparent only after the influence of meteorological conditions are removed from the data.
Schlüsselwörter: Fischerei, zeitreihe, modell, statistik
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van Deventer, J. S., & Platts, W. S. (1989). Microcomputer Software System for Generating Population Statistics from Electrofishing Data – User's Guide for MicroFish 3.0 (Vol. 254).
Schlüsselwörter: Population, fischerei, software, dokumentation
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Bax, N. J., Mehl, S., Godo, O. R., & Sunnana, K. (1991). Transparent multispecies analysis: an exploration of fisheries ans survey data off the Norwegian coast and Barents Sea (Vol. 193).
Schlüsselwörter: Fischerei, population, modell, Ökosystem, interaktion, statistik
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Krivan, V., & Seda, J. (1989). Application of a guaranteed regression model to trophic interaction in an aquatic system (Vol. 49).
Zusammenfassung: The method of guaranteed estimation is used to estimate the unknown parameters of two nonlinear regression models. The first describes the relations between the body size structure of zooplankton and the biomass of planktivorous fish. The second estimates time-lag between the dynamics of cladoceran egg production and dynamics of phytoplankton.
Schlüsselwörter: Ökosystem, modell, interaktion, trend, fisch, statistik
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