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 7 of 7 for “"piscivorous birds"”.
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Space Use by Piscivorous Birds, Fish, and Humans on a Multi-Use Lake in Southern Saskatchewan
… Conflicts between humans and fish-eating birds over fisheries resources have also emerged and may be exacerbated by the limited availability of freshwater. In this context, the double-crested cormorant (Phalacrocorax auritus) and American white pelican (Pelecanus erythrorhynchos) have been …
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Cormorants and the Loch Leven trout fishery
Perceived conflicts between piscivorous birds and commercial freshwater fisheries are common, and such a perception exists at Loch Leven, a wetland of international importance for nature conservation and a famous commercial brown trout Salmo trutta fishery, where Great Cormorants Phalacrocorax …
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Seasonal infection of invasive Brook Stickleback (Culea inconstans) by the nematode Contracaecum multipapillatum at Turnbull National Wildlife Refuge, Washington
… a nematode known to infect zooplankton, piscivorous birds, and mammals, have previously been found at TNWR in Cheney Washington. This study aims to describe the seasonality of C. multipapillatum infection of brook stickleback, implications of infection on fish intermediate host body …
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Seasonal habitat use and survival of brown trout (Salmo trutta) in Oatka Creek, Monroe County, New York
… habitats capable of providing protection from piscivorous birds may be limited. Adding structural cover to areas favored by small trout (TL < 200 mm) would increase habitat complexity and likely reduce the severity of overwinter predation.
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Stable Isotopes As Intrinsic Markers of Contaminant Dynamics in the Lake Winnipeg Food Web
… identify trophic interactions among fishes and piscivorous birds and b) track the dietary transfer of trace elements. An intensive field program was undertaken in 2009 and 2010. Muscle samples from fishes and Double-crested Cormorants (Phalacrocorax auritus; hereafter “cormorant”) were examined …
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The impact of cormorants (Phalacrocorax carbo carbo and Phalacrocorax carbo sinensis) on inland fisheries in the UK
Cormorants are piscivorous birds with a daily food intake (DFI) of approximately 500 g. They are a protected species under the Wildlife and Countryside Act 1981. In the UK, the number of over-wintering, inland cormorants increased steadily between 1970 and 1987, at a rate of between 5 and 10 % per …
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STOMACH CONTENT ANALYSIS OF BOTULISM-AFFECTED BIRDS IN LAKE MICHIGAN
… to threaten breeding and migratory waterbirds in the region. From 2010 to 2012, several northern Lake Michigan beaches were monitored for avian mortalities by National Park Service, Common Coast Research and Conservation, and U.S. Geological Survey personnel, partners, and volunteers. …