The Arctic is warming rapidly, with concomitant sea ice losses and ecosystem changes. animals most vulnerable to food web changes are long-lived slow-growing such as marine mammals, which may not be able adapt rapidly enough respond in their resource bases. To determine the current extent sources of these bases, we examined isotopic trophic niches for mammals European using skin carbon (?13C) n...

Marine mammal species diversity off Zanzibar and Tanzania, East Africa, has been recorded by the Mammal Education Research Group at Institute of Sciences, Zanzibar, Tanzania since 1998. The data presented in this report reflect efforts 10 years collection information from marine mammals stranded incidentally caught Tanzanian waters. Additional dedicated surveys cetaceans (whales dolphins) incid...

The primary goal of these studies was to investigate the relative vulnerability of marine mammals to acoustically mediated trauma from emboli formation. By evaluating key environmental, behavioral and physiological factors, we have been able to identify drivers influencing the dive response of cetaceans and pinnipeds, and the potential risk for tissue damage at depth. The results of this projec...

Pinnipeds (seals, sea lions, and walruses) are amphibious marine mammals that are susceptible to coastal anthropogenic noise. The long-term goals of this effort are to improve understanding of (1) the sound detection capabilities of several pinniped species, and (2) the effects of noise exposure on the sound detection capabilities of these species. The laboratory and field studies associated wi...

Standardized diet compositions were derived for 97 species of marine mammals from published accounts of stomach contents as well as from morphological, behavioural and other information. Diet was apportioned among eight categories of prey types (benthic invertebrates, large zooplankton, small squids, large squids, small pelagic fishes, mesopelagic fishes, miscellaneous fishes and higher inverte...