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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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Angermeier, P. L., & Smogor, R. A. (1995). Estimating number of species and relative abundances in stream-fish communities: Effects of sampling effort and discontinuous spatial distributions (Vol. 52).
Zusammenfassung: The authors sampled fishes and measured microhabitat in series of contiguous habitat units (riffles, runs, pools) in three Virginia streams. Monte Carlo simulations were used to construct hypothetical series of habitat units, then examined how number of species, similarity in relative abundances, and number of microhabitats accumulated with increasing number of habitat units (i.e., sampling effort). The curves indicated that 90% of the species present were usually found by sampling 5 to 14 habitat units (stream length of 22-67 stream widths). Estimates of species relative abundances required less sampling effort for a given accuracy than estimates of number of species. Rates of species accumulation (with effort) varied among streams and reflected discontinuity in species distributions among habitat units. Most discontinuity seemed to be due to low population density rather than to habitat selectivity. Results from an Illinois stream corroborated our findings from Virginia, and suggested that greater sampling effort is needed to characterize fish community structure in more homogeneous stream reaches.
Schlüsselwörter: Fisch, Fließgewässer, Habitat, Verbreitung
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Schnute, J. (1987). A General Fishery Model for a Size-Struktured Fish Population (Vol. 44).
Schlüsselwörter: LÄngenfrequenz, population, methode, theorie, mathematik, statistik, fisch
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Sterba, G. (1990). Süßwasserfische der Welt. Leipzig: Urania Verlagsgesellschaft.
Schlüsselwörter: Fisch, Bestimmungswerk
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McGarvey, R. (1994). An age-structured open-access fishery model (Vol. 51).
Zusammenfassung: A dynamic model for open-access fisheries is presented. In addition to density dependence in recruitment and fishing effort changing in proportion to the level of profit fishermen earn which characterizes previous open-access models, it incorporates full age structure for the fish stock, lognormal environmental recruitment variability, and gear selectivity. The predator-prey cycling solution of the original Schaefer dynamic model, and subsequent open-access models, persists for these model extensions. Density dependence in recruitment induces greater global stability. Environmental recruitment variability, common in marine populations, is destabilizing in the neighborhood of the open-access equilibrium. Approximating model steady states of effort and catch by the corresponding averages from data time series underlies a new algorithm of parameter evaluation, applied here to an open-access model of the Georges Bank sea scallop (Placopecten magellanicus) fishery.
Schlüsselwörter: modell, statistik, population, dynamik, algorithmus
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Riffel, M., & Schreiber, A. (1998). Morphometric differentiation in populations of the Central European sculpin Cottus gobio L., a fish with deeply divergent genetic lineages (Vol. 76).
Schlüsselwörter: Fisch, Population, Genetik, Groppe, Mühlkoppe, Cottus gobio, Verbreitung
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Wood, C. C., McKinnell, S., Mulligan, T. J., & Fournier, D. A. (1987). Stock Identification with the Maximum-Likelihood Mixture Model: Sensitivity Analysis and Application to Complex Problems (Vol. 44).
Schlüsselwörter: Simulation, fischerei, methode, mathematik, statistik, modell, theorie, fisch
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Illies, J. (1958). Die Barbenregion mitteleuropäischer Fließgewässer. Verh. internat. Ver. Limnol., 13, 834?844.
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Albuquerque, C. Q., & Muelbert, J. H. (2004). The use of haematoxylin stain to improve contrast of growth increments in otoliths of larval whitemouth croaker. Journal of Fish Biology, 64, 794?797.
Schlüsselwörter: Fisch, Otolith, Wachstum, Alter, Bestimmung
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Tesch, F. W., & Albrecht, M. - L. (1961). Über den Einfluß verschiedener Umweltfaktoren auf Wachstum und Bestand der Bachforelle (Salmo trutta fario L.) in Mittelgebirgsgewässern (Vol. XIV).
Schlüsselwörter: Fisch, Bachforelle, Salmo trutta fario, Wachstum, Bestand, Nahrung, Habitat
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