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Bott, R. (1949). Amerikanische Flußkrebse im Main (Vol. 79).
Schlüsselwörter: Krebs, Kamberkrebs, Orconectes limosus, Vorkommen, Rhein, Neozoon
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McGarvey, R. (1994). An age-structured open-access fishery model (Vol. 51).
Zusammenfassung: A dynamic model for open-access fisheries is presented. In addition to density dependence in recruitment and fishing effort changing in proportion to the level of profit fishermen earn which characterizes previous open-access models, it incorporates full age structure for the fish stock, lognormal environmental recruitment variability, and gear selectivity. The predator-prey cycling solution of the original Schaefer dynamic model, and subsequent open-access models, persists for these model extensions. Density dependence in recruitment induces greater global stability. Environmental recruitment variability, common in marine populations, is destabilizing in the neighborhood of the open-access equilibrium. Approximating model steady states of effort and catch by the corresponding averages from data time series underlies a new algorithm of parameter evaluation, applied here to an open-access model of the Georges Bank sea scallop (Placopecten magellanicus) fishery.
Schlüsselwörter: modell, statistik, population, dynamik, algorithmus
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McGarvey, R. (1994). An age-structured open-access fishery model (Vol. 51).
Zusammenfassung: A dynamic model for open-access fisheries is presented. In addition to density dependence in recruitment and fishing effort changing in proportion to the level of profit fishermen earn which characterizes previous open-access models, it incorporates full age structure for the fish stock, lognormal environmental recruitment variability, and gear selectivity. The predator-prey cycling solution of the original Schaefer dynamic model, and subsequent open-access models, persists for these model extensions. Density dependence in recruitment induces greater global stability. Environmental recruitment variability, common in marine populations, is destabilizing in the neighborhood of the open-access equilibrium. Approximating model steady states of effort and catch by the corresponding averages from data time series underlies a new algorithm of parameter evaluation, applied here to an open-access model of the Georges Bank sea scallop (Placopecten magellanicus) fishery.
Schlüsselwörter: fischerei, Population, Mathematik, Modell, Statistik, CPUE
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Marquardt, D. W. (1963). An algorithm for Least-Squares Estimation of Nonlinear Parameters (Vol. 11).
Zusammenfassung: The algorithm discribed shares with the gradient methods their ability to converge from an initial guess which may be outside the region of convergence of other methods. The algorithm shares with the Taylor series method the ability to close in on the converged values rapidly after the vicinity of the converged values has been reached. Thus, the method combines the best feutures of ith predecessors while avoiding their most serious limitations.
Schlüsselwörter: mathematik, marquardt, nichtlinear, methode, algorithmus
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Robotham, P. W. J. (1982). An analysis of a specialized feeding mechanism of the spined loach, Cobitis taenia L., and a description of the related structures (Vol. 20).
Schlüsselwörter: Fisch, Cobitis, Biologie, Nahrung, Methode
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Shapiro, S. S., & Wilk, M. B. (1965). An analysis of variance test for normality (complete samples) (Vol. 3).
Schlüsselwörter: Normalverteilung, methode, statistik, mathematik, formeln, theorie
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Tan, X., Kim, D., Usher, N., Laboy, D., Jackson, J., Kapetanovic, A., et al. (2006). An Autonomous Robotic Fish for Mobile Sensing. In Proceedings of the 2006 IEEE/RSJ International Conference on Intelligent Robots and Systems (pp. 5424?5429).
Zusammenfassung: In this paper an innovative approach to robotics education is reported, where hands-on learning is integrated with cutting-edge research in the development of an autonomous, biomimetic robotic fish. The project aims to develop an energy-efficient, noiseless, untethered swimming robot for mobile sensing purposes. The robot is propelled by an ionic polymer-metal composite (IPMC) actuator and equipped with a GPS receiver, a ZigBee wireless communication module, a microcontroller, and a temperature sensor for autonomous navigation, control, and sensing. The two phases of the development are described, emphasizing both the technical approaches and the learning paradigms. The developed robotic fish will be further used as an educational kit for K-12 students and as a research tool for investigating multi-robot collaborative sensing.
Schlüsselwörter: Technik, Roboter, GPS, Umweltdaten
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Chan, C. - L., Hoenig, J. M., Dawe, E. G., Brownie, C., & Pollock, K. H. (1995). An Efficient Design for Index-Removal and Change-in-Ratio Estimation of Population Size and Related Parameters. ICES C.M.
Schlüsselwörter: Fisch, mark-recapt, Methode, Statistik, Zippin, Mathematik
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Raymond, M., & Rousset, F. (1995). An exact test for population Differentiation (Vol. 49).
Schlüsselwörter: population, Modell, mathematik, algorithmus, artendifferenzierung, Statistik
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Mertz, G., & Myers, R. A. (1996). An extended cohort analysis: incorporating the effect of seasonal catches (Vol. 53).
Schlüsselwörter: vpa, statistik, methode, modell, mathematik, fischerei, mortalität
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