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Sekine, M., Nakanishi, H., Ukita, M., & Murakami, S. (1991). A shallow-sea ecological model using an object-oriented programming language (Vol. 57).
Zusammenfassung: The purpose of this study is to construct a model that can predict the impact on fisheries caused by coastal development activities. To accomplish this, many species of fish must be incorporated in the model, because each type of fish has a different value as a fishery resource and a different behavior for the same impact. In addition the effect of fish swimming must be considered because even when the total resource amount of fish does not change, fish may still disappear from the object area. These factors make the model structure complicated. Meanwhile, a new concept called “object oriented programming” (OOP) is attracting the attention of modellers. In this paper, we have constructed a model called the “shallow-sea ecological model” (SSEM), by using Smalltalk, which is representative of the OOP language. This showed that the fishing ground environment are expressed very flexibly and plainly by Smalltalk.
Schlüsselwörter: Ökosystem, modell, oop, methode, theorie
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Silvert, W. (1996). Size-aggregation in models of aquatic ecosystems (Vol. 183).
Zusammenfassung: Very simple modells of pelagic marine and freshwater ecosystems have proved very successful and are increasingly widely used. These models are highly aggregated and based in biomass or particle size. Theoretical investigations based primarily on energy flow considerations have provided of the success of these models ans suggest possible ways to extend their applicability.
Schlüsselwörter: Ökosystem, Modell, Mathematik, Statistik
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Krivan, V., & Seda, J. (1989). Application of a guaranteed regression model to trophic interaction in an aquatic system (Vol. 49).
Zusammenfassung: The method of guaranteed estimation is used to estimate the unknown parameters of two nonlinear regression models. The first describes the relations between the body size structure of zooplankton and the biomass of planktivorous fish. The second estimates time-lag between the dynamics of cladoceran egg production and dynamics of phytoplankton.
Schlüsselwörter: Ökosystem, modell, interaktion, trend, fisch, statistik
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(1998). Lebensraum Wasser: fischereiliche Untersuchungen im Rheinsystem (Vol. 23).
Schlüsselwörter: Ökologie, Pestizid, Fisch, Rhein
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Gerstmeier, R., & Romig, T. (1998). Die Süßwasserfische Europas. Stuttgart: Franckh-Kosmos Verlag.
Schlüsselwörter: Ökologie, Limnologie, Fisch, Europa, Bestimmungswerk
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Gassner, H., & Wanzenböck, J. (1999). Fischökologische Leitbilder fünf ausgewählter Salzkammergutseen (Vol. 29).
Schlüsselwörter: Ökologie, Bioindikator, See, Fisch, Österreich
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Abel, G., & Johnson, T. (1978). Vorkommen und Verbreitung der Äsche (Thymallus thymallus L.) im Küstengebiet der nördlichen Ostsee (Vol. 31).
Schlüsselwörter: Äsche, Thymallus, Fisch, Verbreitung
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Bielek, E. (1974). Die Entwicklung der Äsche (Thymallus thymallus L.) (Vol. 92).
Schlüsselwörter: Äsche, Thymallus thymallus, Ontogenie, Fisch, Entwicklung
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Uiblein, F., & Jagsch, A. (1994). Wassertemperatur, Laichaktivität ind Laichplatzwahl – Beobachtungen an der Salzach-Äsche, Thymallus thymallus (Pisces; Salmonidae).
Schlüsselwörter: Äsche, Thymallus thymallus, Fortpflanzung, Fisch, Temperatur
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Müller, K. (1961). Die Biologie der Äsche (Thymallus thymallus) im Luve Älv (Schwedisch Lappland) (Vol. 10).
Schlüsselwörter: Äsche, Thymallus thymallus, Fisch
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