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Jahncke, G. (1989). Erfahrungen beim Erbrüten und Vorstrecken von Hecht, Zander und Maräne (Vol. 36).
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Bock, K. - H. (1989). Zur Fischfauna der Fließgewässer des Kreises Sonneberg (Vol. 4).
Schlüsselwörter: Fisch, Vorkommen
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Bohle, E., & Lehmann, R. (1989). Zur Bedeutung der Struktur von Fließgewässern für das Fischleben (Vol. 46). Arb. dt. Fischverband.
Schlüsselwörter: Struktur, Fisch
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Brenner, T. (1989). Fischereiwirtschaftliche Schäden durch Graureiher Ardea cinerea L. und Kormoran Phalacrocorax carbo (L.) (Vol. 1).
Schlüsselwörter: Fischerei, Schaden, Graureiher, Kormoran, Ardea cinerea, Phalacrocorax carbo
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Waterstraat, A. (1989). Eisfluss eines Gewässerausbaus auf eine Population des Bachneunauges Lampetra planeri (BLOCH, 1784) in einem Flachlandbach im Norden der DDR (Vol. 1).
Schlüsselwörter: Gewässerausbau, Population, Bachneunauge, Lampetra planeri, Flachlandbach, DDR
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Pelz, G. R., & Kästle, A. (1989). Ortsbewegungen der Barbe Barbus barbus (L.)-radiotelemetrische Standortbestimmungen in der Nidda (Frankfurt/Main) (Vol. 1).
Schlüsselwörter: Ortsbewegung, Barbe, Barbus barbus, Fisch, radiotelemetrisch, Nidda
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Lelek, A., & Köhler, C. (1989). Zustandsanalyse der Fischartengemeinschaften im Rhein (1987-1988) (Vol. 1).
Schlüsselwörter: Zustand, Analyse, Fisch, Fischart, Gemeinschaft, Rhein
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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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Landrum, J. L. (1989). Simplification methods for the World Vector Shoreline. Naval Ocean Research and Development Activity, NSTL Station, MS (USA).
Zusammenfassung: The fractal nature of the coastline makes it desirable to sample the World Vector Shoreline (WVS) data base in a manner related to the map scale at which it will be displayed. A survey of US Navy users has determined that several resolutions of the WVS are required. This report shows the relationship among vector data-base resolution, display device resolution, and map scale, then presents three simplification algorithms. These algorithms provide means of reducing the data-base resolution to that which is appropriate for a particular map scale and display device resolution. The discussion is supplemented with a series of maps illustrating the output of the simplification algorithms at several map scales.
Schlüsselwörter: mapping-; computer-programmes; data-processing; vectors-; automated-cartography; algorithms-
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(1989). Coregonid Bioenergetics.
Schlüsselwörter: Bioenergetik, wachstum, modell, theorie, mathematik
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