|
Anonymus. (1987). Die Fischfauna der unteren Iller.
Schlüsselwörter: Fisch, Vorkommen, Donau
|
|
|
Arnason, A. N., & Mills, K. H. (1987). Detection of handling mortality and its effects on Jolly-Seber estimates for mark-recapture experiments (Vol. 44).
Zusammenfassung: Handling mortality occurs in mark-recapture experiments if animals handled and released in a given sample have a higher mortality rate than animals that were alive but not sampled. This violates the assumption of equal survival required for forming the Jolly-Seber estimates of population abundance, survival, and recruitment. The authors show that handling mortality can produce very large biases in these estimates, and we develop a test to detect it. They investigate the power of this test and find that quite large biases can be produced at handling mortality rates that are too low to be detected. They also recommend methods to prevent handling mortality from occurring in fish sampling experiments and methods to reduce bias in the estimates. The test and the bias corrections are applied to mark-recapture data for a lake whitefish (Coregonus clupeaformis ) population and to data from simulated mark-recapture experiment.
Schlüsselwörter: Fischerei, Statistik, Mathematik, Modell, Mortalität, Jolly-Seber
|
|
|
Ward, G., & Fitzgerald, G. J. (1987). Male aggression and female mate choice in the threespine stickleback, Gsterosteus aculeatus L..
Zusammenfassung: A laboratory study of female G. aculeatus revealed no conclusive evicence of active female mate choice on the basis of male aggression levels. However, highly aggressive males failed in 95% of all choice tests. The less aggressive ´chosen´ males where generally successful again in subsequent trials with the same female, and certain males were consistently successful with different females. Females exhibited an increased readiness to spawn at the end of the reproductive season, although the same males were usually selected again.
Schlüsselwörter: Sex, Fisch, Verhalten, Saison
|
|
|
Reger, K. H. (1987). Über die Flußperlmuschel.
Schlüsselwörter: muscheln, artenschutz
|
|
|
Schüle, W. (1987). Flußdiagramm zur Bestimmung eines adäquaten statistischen Prüfverfahrens im Bereich der parametrischen und nichtparametrischen Grundlagenstatistik (S. Siegel, Ed.). Eschborn: Fachbuchhandlung für Psychologie ^.
Schlüsselwörter: statistik, methode, Grundlage
|
|
|
Misra, R. K. (1987). A Program to Compare Statistically the Generalized von Bertalanffy Growth Curves and their Parameters (Vol. 1439).
Schlüsselwörter: Wachstum, fisch, statistik, modell, fortran, listing
|
|
|
Helland, I. S. (1987). On the Interpretation and Use of R2 in Regression Analysis (Vol. 43).
Schlüsselwörter: Statistik, Grundlage, regression
|
|
|
Taggart, C. T., & Leggett, W. C. (1987). Wind-Forced Hydrodynamics and Their Interaction with Larval Fish and Plankton Abundance: A Time-Series Analysis of Physical-Biological Data (Vol. 44).
Schlüsselwörter: Fischerei, statistik, zeitreihe, methode, modell
|
|
|
Green, P. E. J., & Macdonald, P. D. M. (1987). Analysis of Mark-Recapture Data from Hatchery-Raised Salmon Using Log-Linear Models (Vol. 44).
Schlüsselwörter: Capt-recapt, fischerei, methode, statistik, modell
|
|
|
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
|
|