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 11 of 11 for “"sea lions"”.
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Effects Of Food Deprivation On Blood Lipid Concentration And Composition In Steller Sea Lions (eumetopias Jubatus)
Steller sea lions, the largest Otariid, fast during their breeding season; during this time they refrain from ingesting food for a period of 12-43 days. Fasting, while undertaking an extremely energetically demanding activity (breeding and pupping), requires specific physiological adaptations. This …
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Diet quality and season affect physiology and energetic priorities of captive Steller sea lions during and after periods of nutritional stress
… ability of animals to contend with unpredictable seasonal shifts in quality and quantity of prey has implications for the conservation of wildlife. Steller sea lions(Eumetopias jubatus) were subjected to different quantities and qualities of food to determine what physiological and endocrine …
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First detection of otarine herpesvirus-1 in South America: Characterizing the epidemiology in a Peruvian pinniped population
… urogenital carcinoma in free-ranging California sea lions (Zalophus californianus), but rarely considered a conservation concern in the southern hemisphere. The objective of this study was to survey free-ranging South American sea lions (Otaria byronia) and Peruvian fur seals (Arctocephalus …
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Galápagos Sea Lion (Zalophus wollekaeki) Play Behaviors on San Cristóbal Island, Ecuador
… of play activities from videotapes of Galápagos sea lions on San Cristóbal Island from mid-summer of 2008. I begin with a discussion of ideas about play and types of play, elaborate the conceptual system of projects and routines in play, and provide a brief description of sea lion taxonomy and …
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Swimming sentinels : climate clues from stranded marine mammals
From skinny sea lions on beaches in California, to hundreds of enormous dead whales in the fjords of Chile, scientists have been recently puzzled by a spate of dead and dying marine mammals. These events are so complicated- influenced by disease, biotoxins, ecosystem changes, and human …
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BRANCHED CHAIN FATTY ACIDS (BCFA) IN NATURE: FISH, FERMENTED FOODS, AND SEA LION VERNIX CASEOSA
… anecdotal reports of BCFA-rich vernix caseosa in sea lions. Twenty-seven wild fishes collected from fresh waters in the northeastern United States were analyzed. BCFA was only 1% ± 0.5% (mean ± SD) of total fatty acids, contributing only a small amount of BCFA per serving to the diet. …
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Morphometric analysis of ears in two families of pinnipeds
Pinniped (seal and sea lion) auditory systems operate in two acoustically distinct environments, air and water. Piniped species differ in how much time they typically spend in water. They therefore offer an exceptional opportunity to investigate aquatic versus terrestrial hearing mechanisms. The …
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Feeling out Your Food: A Histological Analysis of the Whisker System in Seals
… important in deep-diving mammals. Pinnipeds (seals, sea lions, and walruses) have highly sensitive whiskers that are used to follow hydrodynamic trails created by their swimming prey. Each pinniped vibrissa is surrounded by a tripartite blood sinus system composed of an upper cavernous sinus …
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The influence of past behavior on future behavior: a mind-set perspective
… deciding which animals jump higher, dolphins or sea lions) on the likelihood of performing a conceptually similar behavior in subsequent, unrelated situations (e.g., deciding which of two candies to purchase). It reflects the activation and persistence of procedural knowledge. My dissertation …
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From whaling days to cannery row : a survey of some aspects of the fishing industry at Monterey and vicinity from 1854 to 1920
… in 1758, makes the statement that whales and sea lions swam about in the bay.<sup>1</sup></p><p>Apparently, the whales kept on swimming in Monterey Bay for about one hundred and fifty years without being molested. Shortly after that, the whales and Monterey fishermen engaged in a long struggle …