Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Trout fishery"”.
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Cormorants and the Loch Leven trout fishery
… conservation and a famous commercial brown trout Salmo trutta fishery, where Great Cormorants Phalacrocorax carbo have been shot in large numbers. This thesis describes the foraging behaviour of cormorants wintering on Loch Leven. It summarises changes in wintering numbers over a 32 year …
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Analysis of catchable trout fisheries management by computer simulation
… relatively clearcut in single-species catchable trout programs, strategies become much more complex when two or more species are involved. A difficult problem that must be faced in evaluating catchable trout fisheries management strategies is defining management objectives. One approach to …
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Hydrological aspects of brown trout management in the Selwyn River system, Canterbury, New Zealand
… New Zealand, on management of the brown trout (Salmo trutta) fishery. The project has four main aims: to describe the hydrological characteristics of the Selwyn River system; to outline the streamflow-related requirements of trout; to show how the hydrology of the Selwyn River system …
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Consequences of Spatial Exploitation in Complex Adaptive Social-Ecological Systems: Managing for Sustainable Freshwater Fisheries
… models and empirical case studies on the rainbow trout Oncorhynchus mykiss and lake trout Salvelinus namaycush fisheries of British Columbia and Yukon to find the landscape, social, and ecological consequences of spatial exploitation on these complex systems. In general, I found that system …
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Local and regional controls of brook trout (Salvelinus fontinalis) metapopulation dynamics within a complex Appalachian riverscape
Brook trout have recently become a species of conservation focus due to their unique spatial structure and restricted thermal requirements. These life history characteristics make brook trout particularly vulnerable to major biodiversity threats, such as climate change and habitat loss. For …
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Seasonal and spatial patterns in nitrogen cycling and food web interactions in Lake Taupō New Zealand
… for water quality purposes. Abundance of rainbow trout (Oncorhynchus mykiss: Salmonidae), the top predator in the Taupō system, is managed through a regulated recreational fishery. Coincident with a period of declining water quality between 1995 and 2005, the trout in Lake Taupō underwent a …