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(1988). Freshwater Crayfish in Britain & Ireland.
Schlüsselwörter: Krebs, Bestimmung
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(1988). Cameo.
Schlüsselwörter: Methode, Ökosystem, population, geographie, software
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Akamine, T. (1988). Estimation of parameter for Richards model.
Zusammenfassung: Akamine's (1986) BASIC program by Marquardt's method was rewritten for Richards model and its expanded model by the periodic function. For 0.9 similar to 1.1 the “LOG” function is corrected by Taylor series. Data estimated to be negative are cut off. AIC judges the effect of adding n to the parameters. Richards model is not so important in practice but it is important theoretically.
Schlüsselwörter: Wachstum, theorie, methode, statistik, listing, basic, modell
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Akamine, T. (1988). Evaluation of Error Caused by Histogram on Estimation of Parameters for a Mixture of Normal Distributions.
Zusammenfassung: When histograms are used instead of raw data to estimate parameters by the maximum likelihood method, data has an error distributed according to a regular distribution among the width of the histogram. This influence on the estimation of parameters is evaluated by the linearized error propagation rule. Covariance is in proportion to the width squared and in inverse proportion to the number of data. Even if the number of data is large, the precision is low for small normal distributions. In practice, an adequate width will be given by the shapes of the histograms.
Schlüsselwörter: Normalverteilung, basic, listing, methode, algorithmus, poly-verteilung
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Barthelmes, D. (1988). Neue Gesichtspunkte zur Entwicklung und Bewirtschaftung von Zanderbeständen (Stizostedion lucioperca) – Teil I (Vol. 35).
Schlüsselwörter: Entwicklung, Fisch, Fischerei, Bewirtschaftung, Zander, Stizostedion lucioperca
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Barthelmes, D. (1988). Neue Gesichtspunkte zur Entwicklung und Bewirtschaftung von Zanderbeständen (Stizostedion lucioperca) – Teil II (Vol. 35).
Schlüsselwörter: Entwicklung, Fisch, Fischerei, Bewirtschaftung, Zander, Stizostedion lucioperca
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Bauer, J., Lehmann, R., Hamm, A., Auerswald, K., Böhm, A., Fischer-Scherl, T., et al. (1988). Gewässerversauerung im nord- und nordostbayerischen Grundgebirge. München: Bayerische Landesanstalt für Wasserforschung.
Schlüsselwörter: Fisch, Versauerung, Makroinvertebraten, pH-Wert
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Bayley, P. B., & Illyes, R. F. (1988). Measuring Fish and Recording Data in the Field and Laboratory: A Microcomputer Application (Vol. 13).
Schlüsselwörter: Hardware, methode, theorie, fischerei
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Becker, M. (1988). Freilandökologische Untersuchungen an planktivoren Fischen des Überlinger Sees mit Schwerpunkt einer differenzierten Nahrungsanalyse. Diploma thesis, Universität, Konstanz.
Schlüsselwörter: Fisch, Plankton, Nahrung, Bodensee, See
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Berg, R. (1988). Der Aal im Bodensee. Gaimersheim: Verlag Josef Margraf.
Schlüsselwörter: Anguilla anguilla, Fisch, Gesamtwerk, Aal, Biologie, Nahrung, Wachstum, Alter, Wanderung
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