Ebel, G. (2000). Habitatansprüche und Verhaltensmuster der Äsche Thymallus thymallus (Linnaeus 1758). Halle (Saale).
Schlüsselwörter: Fisch, Äsche, Thymallus thymallus, Biologie, Habitat, Verhalten, Fortpflanzung
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Ebel, G. (2000). Habitatansprüche und Verhaltensmuster der Äsche Thymallus thymallus (Linneaus, 1758). Halle.
Schlüsselwörter: Fisch, Äsche, Thymallus thymallus, Habitat, Wanderung, Fortpflanzung, Wachstum
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Pelz, G. R., & Brenner, T. (2000). Fische und Fischerei in Rheinland-Pfalz. Mainz: Ministerium für Umwelt und Forsten Rheinland-Pfalz.
Schlüsselwörter: Fische, Fischerei
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Gröger, J. (2001). Biometrische Analysen zur Optimierung spezieller populationsdynamischer Kenngrößen in der Fischereibiologie. Hamburg: Bundesforschungsanstalt für Fischerei.
Schlüsselwörter: Fisch, Biometrie, Population, Methode
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Gerstmeier, R. (1990). Fischbiologie des Königssees: Nahrungsangebot und Nahrungswahl ; 2. Band: Die quantitative Erfassung benthaler Chironomiden (Diptera) des Königssees ; nahrungsökologische Untersuchungen an Fischen im Nationalpark Berchtesgaden. Berchtesgaden: Nationalparkverwaltung Berchtesgaden.
Schlüsselwörter: Fisch, Nahrung
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Bohl, E., Peter, A. J., Kindle, T., & Haidvogl, G. (2001). Fisch- und Krebsatlas Liechtensteins. Vaduz: Amt für Umweltschutz.
Schlüsselwörter: Fisch, Krebs, Vorkommen, Liechtenstein
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Cadigan, N. G., & Shelton, P. A. (1993). SAS programs for fitting a seal population dynamics model.37.
Zusammenfassung: This technical report presents a description of two SAS programs (MAKED.SAS and SEAL.SAS) that fit a population dynamics model to seal (Phocidae) data. The programs have been constructed in such a manner that special knowledge of SAS is not required to run them. The population dynamics model is transformed to a standard nonlinear regression model and parameters are estimated using SAS's PROC NLIN. Output from the programs includes estimates of intrinsic mortality, pup numbers over time and total population numbers over time. The code for the programs is presented along with two examples.
Schlüsselwörter: SAS, population, saison, mortalität, modell
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Millar, R. B. (1990). A versatile computer program for mixed stock fishery composition estimation. Department of Fisheries and Oceans, St. John's, Nfld. (Canada).
Zusammenfassung: This technical report describes a FORTRAN program (HISEA.FOR) to be used in the study of mixed stock fishery composition estimation. Program HISEA is a versatile research tool capable of performing analyses. The simplest use of HISEA is to perform a composition analysis. The program can then be run in bootstrap mode to provide a non-parametric estimate of the reliability of the estimated compositions. In simulation mode, HISEA can quantify the effect of changing sample sizes; of adding or removing variables; and of adding or removing stocks. Simulation also identifies potential problems (such as high bias and variance in the composition estimators) that may arise due to different stocks being too alike.
Schlüsselwörter: check-lists; approximation-; computer-programmes; stock-assessment
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Hoenig, J. M., Prager, M. H., & Payton, N. B. (1989). Computer programs for investigating the effects of environmental events on a time series of recruitment. Department of Fisheries and Oceans, St. John's, Nfld. (Canada). Science Branch.
Zusammenfassung: Prager and Hoenig (in press) used a randomization procedure to test the significance of discrete environmental events, such as el Nino-Southern Oscillation events, on a time series of recruitment. Their procedure implicitly accounted for autocorrelation and other problems frequently encountered when trying to use a parametric testing procedure. In a follow up paper, Prager and Hoenig (in prep.) investigated the power of several randomization tests and compared them to parametric alternatives. This report presents the two Fortran computer programs used in these studies.
Schlüsselwörter: recruitment-; environmental-effects; computer-programmes; time-series; fishery-management
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Mittertreiner, A., & Schnute, J. (1985). Simplex: A manual and software package for easy nonlinear parameter estimation and interpretation in fishery research.
Schlüsselwörter: Statistik, Nichtlinear, Fischerei, Methode
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