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 12 of 12 for “"Baleen whales."”.
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Temporal and spatial distributions of baleen whales in central New Zealand, based on passive acoustic monitoring
… and threats. Worldwide, the distributions of baleen whales have proven difficult to study due to logistical constraints imposed by their offshore distributions and limited surface time. However, many baleen whales reliably produce stereotyped sound, and are therefore suitable to study …
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Foraging ecology and population structuring of baleen whales in the western South Atlantic and eastern South Pacific
Baleen whales are highly mobile marine predators that are still recovering from unsustainable exploitation between the 18th and 20th centuries. There remain considerable gaps in our understanding of the migration, foraging localities, prey choice and population connectivity of whales in the …
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The auditory system of the minke whale (Balaenoptera acutorostrata) : a potential fatty sound reception pathway in a mysticete cetacean
… about the effects of anthropogenic noise on baleen whales (suborder Mysticeti), we lack basic information about their auditory physiology for comprehensive risk assessments. Hearing ranges and sensitivities could be measured if customized equipment and methods were developed based on how …
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The auditory system of the minke whale (Balaenoptera acutorostrata) : a potential fatty sound reception pathway in a mysticete cetacean
… about the effects of anthropogenic noise on baleen whales (suborder Mysticeti), we lack basic information about their auditory physiology for comprehensive risk assessments. Hearing ranges and sensitivities could be measured if customized equipment and methods were developed based on how …
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Modelling the krill-predator dynamics of the Antarctic ecosystem
… in the Antarctic, it is evident that among the baleen whales, blue, fin, humpback and minke whales feed mainly on krill, and could collectively be consuming up to 120 million tons of krill in this region for each of the years around 1990. Of the seals, the Antarctic fur seals and crab-eater …
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The foraging ecology of minke whales (Balaenoptera acutorostrata) in Northeast Scottish waters using stable isotope analysis
… tracking change and assessing its key drivers. Baleen whales, as mid-trophic level predators, are indicator species that reflect pressure-driven changes at both higher and lower trophic levels. As such, understanding their foraging ecology is critical to informing effective conservation and …
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An investigation on humpback whales' distribution in relation to Antarctic sea ice in the IDCR/SOWER dataset
Existing literature has identified humpback whales (Megaptera novaeangliae) as climate sentinels since their feeding ecology is inextricably linked to the oceanic features around Antarctica, and to the seasonal sea ice. The changing Antarctic cryosphere in response to climate change threatens not …
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Investigating blue and fin whale populations through passive acoustic monitoring using ocean bottom seismometers
Many large baleen whale species are endangered due to decades of commercial whaling before its international ban in the 1980s. Monitoring the recovery of their populations is difficult to study with traditional animal survey methods. Visual transect methods using ships and planes cover only small …
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Systematics of cetaceans using restriction site mapping of mitochondrial DNA
… One species from the suborder mysticeti (baleen whales) was sampled, and of the ten odontocetes (toothed whales) sampled two were from the family Ziphiidae (beaked whales) and eight were from the family Delphinidae (dolphins) (each representing a different genus). The primarily …
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Acoustic communication in the North Atlantic right whale (Eubalaena glacialis)
… whale producing all the sounds to attract other whales to the group. Playback experiments demonstrate that right whales can use sounds from SAGs to locate the groups. Male right whales approached both North Atlantic and Southern right whale SAG playbacks. Female right whales only approached …
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Investigating group behavioral quantization of oceanic fish with Continental-shelf scale ocean-acoustic sensing
… spatial and temporal correlation between certain baleen whale vocalizations and peak annual spawning processes of Atlantic herring in the Gulf of Maine. These vocalizations are apparently related to feeding activities of baleen whales with suggested functions that include communication, prey …
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Approaches to understanding the cumulative effects of stressors on marine mammals.
… on marine mammals and suggested the use of baleen whale earplugs to evaluate both stress and stressors. The objective of this dissertation is to investigate historic and current organic and inorganic contaminants within the marine ecosystem to better understand the cumulative effects of …