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Arzbach, H. H. (1987). Fischereibiologische Untersuchungen im Tidebereich der Stör. Hamburg: Universität.
Schlüsselwörter: Fisch, Fischerei
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Müller, H., & Müller, P. (1987). Fische Europas. Leipzig, Radebeul: Neumann Verlag.
Schlüsselwörter: Fisch, Bestimmungswerk
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Sparre, P. (1987). A method for the estimation of growth, mortality and gear selection/recruitment parameters from length-frequency samples weighted by catch per effort (D. Pauly, & G. R. Morgan, Eds.) (Vol. 13). MAZZARA-DEL-VALLO,-ITALY.
Zusammenfassung: This paper describes a method and a FORTRAN program for the estimation of von Bertalanffy growth parameters, total mortality rates and gear selection/recruitment parameters from a time series of length-frequency samples weighted by catch per effort (e.g., numbers caught per hour by length class each quarter of the year). The length frequencies are separated into normally distributed components each of which represents a cohort. This method is constructed to allow for continuous, seasonally variable recruitment all year-round and is intended to be used especially for tropical and other fish stocks displaying an appropriate recruitment pattern.
Schlüsselwörter: stock-assessment; recruitment-; size-distribution; length-; mathematical-models, marine-fisheries
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Cole, R., Ward, F., Ward, T., Deitner, R., & Fiore, J. (1987). Model for optimization of socio-economic fishery values on the Rio Grande in New Mexico. New Mexico Water Resources Research Inst., Las Cruces (USA).
Zusammenfassung: A mathematical model which simulates sport-fish production yield and economic value in the Rio Grande basin of New Mexico is described. The model links hydrologic, biologic, and economic components into a mathematical representation of fisheries habitat, fishery dynamics, economic benefits, and income generated by sport-fishing in New Mexico. The model has a research version programmed in FORTRAN. The model users can modify water volume flowing through the basin by month, water stored in each reservoir, water discharged through connecting water material concentrations (suspended solids, total phosphorus, total nitrogen) in the water, site access, and site quality. (Prepared in cooperation with New Mexico State Univ., Las Cruces. Dept. of Fishery and Wildlife Sciences. Sponsored by Geological Survey, Reston, VA (USA). Water Resources Div.)
Schlüsselwörter: economic-models; sport-fishing; fishery-economics; USA,-New-Mexico,-Grande-R.-basin
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Meinel, W., Barlas, M., Lelek, A., Pelz, G. R., & Brunken, H. (1987). Das Vorkommen der Fische in Fließgewässern des Landes Hessen. Wiesbaden: Ministerium für Landwirtschaft, Forsten und Naturschutz.
Schlüsselwörter: Fisch, Verbreitung, Vorkommen
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Peter, A. J. (1987). Untersuchungen über die Populationsdynamik der Bachforelle (Salmo trutta fario) im System der Wigger, mit besonderer Berücksichtigung der Besatzproblematik. Zürich: Eidgenössische Technische Hochschule.
Schlüsselwörter: Fisch, Bachforelle, Salmo, Population, Besatz
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Strecker, U. (1987). Untersuchungen zu Populationsaufbau und ökologischen Ansprüchen der Flussperlmuschlen in einigen bayerischen Bächen und Mühlgräben. Bayreuth: Universität Bayreuth.
Schlüsselwörter: Muschel, Fortpflanzung, Population
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Anonymus. (1987). Die Fischfauna der unteren Iller.
Schlüsselwörter: Fisch, Vorkommen, Donau
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Dreyer, S. (1987). Der europäische Flussbarsch (Perca fluviatilis Linné) als Objekt der Aquakultur. Hohenheim: Universität.
Schlüsselwörter: Fisch, Aquakultur, Perca
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Wischnath, L. (1987). Einheimische Schmerken (Vol. 34).
Schlüsselwörter: Fisch, Cobitis, Noemacheilus, Misgurnus
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