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Freyhof, J., Staas, S., & Steinmann, I. (1998). Erste Nachweise des Weißflossengründlings Gobio albipinnatus LUKASCH 1933 im Rhein (Vol. 1998).
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Fritsch, A., & Vavra, V. (1901). Untersuchungen über die Fauna der Gewässer Böhmens. V. Untersuchungen des Elbeflusses und seiner Altwässer (Vol. 11).
Schlüsselwörter: Fisch, Vorkommen, Elbe
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Gascuel, D. (1994). [A simple adjustment method of age-length keys: Application to yellowfin tuna (Thunnus albacares) catches in the East Atlantic.] (Vol. 51).
Zusammenfassung: An adjustment method for age-length keys is presented that incorporates yearly variability in cohort abundances. The method is based on two models (one for growth and the other for standard deviations of length versus age) and involves an iterative algorithm. The algorithm rapidly converges to stable results that yield, under some conditions, maximum likelihood estimates. It is also used to estimate parameters of the length standard deviation model. The method is applied to yellowfin tuna (Thunnus albacares) catches in the eastern Atlantic from 1975 to 1989.
Schlüsselwörter: fishery-management; stock-assessment; mathematical-models; growth-curves; biological-age; length-; Thunnus-albacares; AE,-East-Atlantic; tuna-fisheries
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Gebler, R. - J. (1998). Fischpässe – Aufstiegshilfe oder Alibi? (Vol. 40).
Schlüsselwörter: Wanderung, Fisch, Fischaufstiegshilfe
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Görlach, J., Zimmermann, U., & Schumann, B. (1998). Wiederherstellung der Durchgängigkeit der oberen Ilm (Vol. 35).
Schlüsselwörter: Wasserbau, Wanderung, Fischaufstiegshilfe, Artenschutz, Fisch, Bachforelle, Salmo trutta, Thüringen
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Haack. (1879). Die Acclimatisierung des Aales im Donaugebiete (Vol. 4).
Schlüsselwörter: Fisch, Anguilla anguilla, Donau, Verbreitung
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Hauer, J. (1926). Drei neue Lepadellaarten aus den Kiemenhöhlen des Flußkrebses (Vol. XVI).
Schlüsselwörter: Krebs, Parasit, Krankheit
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Herzig-Straschil, B. (1989). Die Entwicklung der Fischfauna des Neusiedler Sees (Vol. 1989).
Schlüsselwörter: Fisch, Österreich, Biologie
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Hiramatsu, K., Akamine, T., & Kitada, S. (1995). Effectiveness of partial likelyhood of estimating fish mortality rates from tag recoveries and the stock composition in the mixed population based on genetic data.
Zusammenfassung: Because of the simplicity of calculation and the availability of evaluating the precision of the estimates, a partial likelihood approach has been used for estimating fish mortality rates from tag recoveries and the stock composition in the mixed population based on genetic data. We compare the partial likelihood estimator with the full likelihood estimator, and find that under some conditions, both estimators are the same. The above applications meet the conditions and hence the estimates using the partial likelihood are the same as the ones using the full likelihood. In this case, the partial likelihood approach is quite useful.
Schlüsselwörter: stock-assessment; tagging-; genomes-; fishing-mortality; mixing-ratio; mathematical-analysis
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Knöpp, H. (1957). Die heutige biologische Gliederung des Rheinstroms (Vol. 1).
Schlüsselwörter: Fisch, Rhein, Vorkommen
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