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Skip to Search Results- 134Biological Sciences, Department of
- 121Biological Sciences, Department of/BioSci OER
- 13Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 1Mathematical and Statistical Sciences, Department of
- 1Mathematical and Statistical Sciences, Department of/Research Publications (Mathematical and Statistical Sciences)
- 121University of Alberta, Department of Biological Sciences
- 3Tonn, W. M.
- 3Tonn, W.M.
- 2Devito, K.J.
- 1Banerjee, A.
- 1Caldwell, Michael W.
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2013-01-01
Qihua Huang, Laura Parshotam, Hao Wang, Caroline Bampfylde, Mark A. Lewis
Mathematical models have been widely applied to perform chemical risk assessments on biological populations for a variety of ecotoxicological pro- cesses. In this paper, by introducing a dose-dependent mortality rate function, we formulate a toxin-dependent aquatic population model that...
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1990
Many autecological effects of temperature on fish are known, and fishery biologists have begun to incorporate this knowledge into population-level relations that can be used to assess possible effects of climatic warming on fishes and their habitats. However, the problem of extrapolating these or...
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1983
Tonn, W.M., Forbes, A.M., Magnuson, J.J.
Decisions in fishery management usually are made on a species-by-species and site-by-site basis because most information about fishes has been collected and organized in this way. A comparaitve, community-level approah can contribute to the development of management strategies for large sets of...
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2010
Lindgren, Johan, Konishi, Takuya, Chiappe, Luis M., Caldwell, Michael W.
Mosasaurs (family Mosasauridae) are a diverse group of secondarily aquatic lizards that radiated into marine environments during the Late Cretaceous (98–65 million years ago). For the most part, they have been considered to be simple anguilliform swimmers – i.e., their propulsive force was...
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Density-Dependent Effects and the Regulation of Crucian Carp Populations in Single-Species Ponds
Download1994
Tonn, W. M., Holopainen, I. J., Paszkowski, C. A.
Crucian carp (Carassius carassius) is often the only fish species present in small ponds of northern Europe. Such populations are typically at high densities and consist primarily of small, relatively slender, and short-lived fish; populations in multispecies assemblages in lakes display opposite...
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Enhancing productive capacity in the Canadian Arctic: Assessing the effectiveness of instream habitat structures in habitat compensation
Download2004
We examined the effectiveness of physical habitat structures (ramps, V-weirs, vanes, and groins) at increasing the productive capacity of a newly created 3.4-km artificial stream in the Barrenlands region of the Northwest Territories, Canada. We quantified changes in fish density and growth in...
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2018
University of Alberta, Department of Biological Sciences
This is an image of fish gill rakers. This specimen is observed in Survey of Vertebrates, Zoology 224. This image was created as part of the University of Alberta OER image database project in Biological Sciences. Identifier 2035I.
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2018
University of Alberta, Department of Biological Sciences
This is an image of molariform teeth in fish. This specimen is observed in Survey of Vertebrates, Zoology 224. This image was created as part of the University of Alberta OER image database project in Biological Sciences. Identifier 2051I.
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2018
University of Alberta, Department of Biological Sciences
This is an image of pharyngeal fish teeth. This specimen is observed in Survey of Vertebrates, Zoology 224. This image was created as part of the University of Alberta OER image database project in Biological Sciences. Identifier 2063I.