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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Conrad, V. (1991). Versuche zur Wiedereinbürgerung der Meerforelle in Rheinland-Pfalz (Vol. 4).
Schlüsselwörter: Fisch, Meerforelle, Wiedereinbürgerung, Salmo trutta
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Criddle, K. R. (1991). Modelling dynamic fish populations. Seattle, WA (USA): National Marine Fisheries Serv.
Zusammenfassung: A recently introduced multivariate state-space time-series modeling algorithm, system-theoretic time-series, can be used to create a particularly robust state-space representation. Combining the model approximation methodology with time-series modeling of the residuals in accurate models of short-run dynamics. The approximate structural modeling methodology is illustrated with single species models of yellowfin sole (Limanda aspera ) biomass, and multispecies models of Pacific halibut (Hippoglossus stenolepis ), yellowfin sole, and red king crab (Paralithodes camtschatica ) biomasses in the eastern Bering Sea. A final application of the approximate structural/system-theoretic time-series model includes walleye pollock (Theragra chalcogramma ), Pacific halibut, Pacific cod (Gadus macrocephalus ), yellowfin sole, and red king crab. (Prepared in cooperation with Alaska Univ., Fairbanks.)
Schlüsselwörter: fishery-biology; commercial-species; Limanda-aspera; Hippoglossus-stenolepis; Paralithodes-camtschatica; Theragra-chalcogramma; Gadus-macrocephalus; mathematical-models; biomass-; INE,-USA,-Alaska
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Cronheim, W. (1911). Gesamtstoffwechsel der kaltblütigen Wirbeltiere, im besonderen der Fische (Vol. 15).
Schlüsselwörter: Anatomie, Physiologie
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Cukerzis, J. (1974). Die Zahl, Struktur und Produktivität der isolierten Populationen von Astacus astacus L. (Vol. 4).
Schlüsselwörter: Krebs, Lebensweise, Biologie, Astacus astacus, Flusskrebs
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Czerny, D. (1996). Vorkommen, Verbreitung und Häufigkeit der Fische und Neunaugen im Nord-Ostsee-Kanal (Vol. 9).
Schlüsselwörter: Fisch, Neunauge, Kartierung, Schleswig-Holstein
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Dahlberg, M. L. (1978). Computer program for analysis of the homogeneity and goodness of fit of frequency distributions, FORTRAN 4 (Vol. 76).
Zusammenfassung: A computer program was developed which forms frequency distributions from length measurements and then calculates a chi-square statistic which is used to test the homogeneity of the frequencies for the purpose of pooling. Output includes listing of arithmetic mean, variance, standard deviation, standard error of the mean, total sample size, and chi-square statistic of goodness of fit for individual groups and for the pooled frequency distribution. Histograms of all frequency distributions are produced as full-page printer charts, scaled if necessary to 50 units by up to 100 class intervals. The pooled frequencies and class midpoints are punched on cards to facilitate additional analyses. The program was developed on an IBM 360/65 OS System and required 56,811 bytes of storage.
Schlüsselwörter: computer-programmes; population-structure
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Dalbeck, L. (1998). Aspekte der Lebensstrategien von Hasel Leuciscus leuciscus und Döbel Leuciscus cephalus in der Sieg. Bonn: Friedrich-Wilhelms-Universität.
Schlüsselwörter: Fisch, Biologie, Verhalten, Hasel, Leuciscus leuciscus, Döbel, Leuciscus cephalus
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D'Ancona, U. (1961). Biologische und wirtschaftliche Probleme des Aales in Italien (Vol. 10 NF).
Schlüsselwörter: Biologie der Fisch: Allgemeines
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Debschitz, H. v. (1915). Von der Schleie (Vol. 18).
Schlüsselwörter: Fisch, Schleie, Tinca
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