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 9 of 9 for “"Grey Seals"”.
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Considering behaviour in genetic sampling – a case study with grey seals
… animals. Buccal swabs were tested in a group of grey seals in a rehabilitation centre. The swabs showed potential for being able to carry out individual genotype analysis to identify polymorphisms; a SNP in the grey seal DRD4 gene not previously reported in any other studies was found. However, …
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Predictors of Weight Gain in the Rehabilitation of Eastern North Atlantic Grey Seals (Halichoerus grypus)
… in marine mammals. With 40% of the world’s grey seal (Halichoerus grypus) population on UK shores, grey seal pups are frequently admitted to rehabilitation centres within their first four weeks – a crucial growth phase – across the UK. Common rehabilitation practices (e.g., change in …
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Assessment of dietary patterns and prey consumption of marine mammals: Grey seals (Halichoerus grypus) in the Baltic Sea
… overexploitation during the last centuries. The grey seal (Halichoerus grypus) is a good example of how a species can be affected by such changes. In the early 1900s grey seals were common, but hunting and environmental contaminants caused a rapid decline to the verge of extinction in the 1970s. …
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Telomere Dynamics of Grey Seals (Halichoerus grypus) on Sable Island, Nova Scotia: a Long-Lived Marine Mammal Population Island
… to measure relative telomere length (rTL) in the grey seals (Halichoerus grypus) of Sable Island, Nova Scotia, a population of long-lived marine mammals approaching carrying capacity. Grey seals exhibited a slow decline in rTL with age, similar to other large and long-lived animals. Meanwhile …
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Investigating the effects of persistent organic pollutants (POPs) on insulin-like growth factor 1 (IGF-1) in grey seals
… survival and reproductive success.<br/><br/>Grey seals (<i>Halichoerus grypus</i>) are a useful sentinel species to study POPs due to their high fat content, the lipophilic nature of POPs and the high trophic level of the food chain they occupy. Plasma samples from grey seal pups were …
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Characterising fat tissue structure and function in response to hypoxia in grey seals, an animal model of extreme fat deposition and mobilisation, using novel <i>in vivo</i> and <i>in vitro</i> approaches
… initial; background-clip: initial;">Phocid seals go through dramatic seasonal changes in body mass and composition because of the spatial and temporal separation of foraging, reproduction and moulting. The regulation of fat mobilisation during these processes is a key factor for their …
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Do Pinnipeds Have Personality? Coding Harbor Seal (<i>Phoca vitulina</i>) and California Sea Lion (<i>Zalophus californianus</i>) Behavior Across Contexts
… a few specific behaviors have been identified in grey seals (Robinson et al., 2015; Twiss & Franklin, 2010; Twiss, Culloch & Pomeroy, 2011; Twiss, Cairns, Culloch, Richards & Pomeroy, 2012). Furthermore, the context component of definitions of personality is not often assessed, despite evidence …
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Seals and fisheries: a study of the conflict and some possible solutions
Interaction between seals and fisheries along the Swedish coast has serious environmental and economic consequences. This thesis describes the conflict as it affects four different small-scale coastal fisheries; the eel fisheries on the west coast, the herring fisheries and salmon fisheries in the …
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Trophic role of small cetaceans and seals in Irish waters
… dolphin, harbour porpoise, harbour seal and grey seal); the last species studied was the bottlenose dolphin whose population structure is more complex, with coastal and offshore populations. A total of 13,028 prey items from at least 81 different species (62 fish species, 14 cephalopods, four …