Articles with "killer whales" as a keyword



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A deep dive into fat: Investigating blubber lipidomic fingerprint of killer whales and humpback whales in northern Norway

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Published in 2021 at "Ecology and Evolution"

DOI: 10.1002/ece3.7523

Abstract: Abstract In cetaceans, blubber is the primary and largest lipid body reservoir. Our current understanding about lipid stores and uses in cetaceans is still limited, and most studies only focused on a single narrow snapshot… read more here.

Keywords: killer whales; lipidomic fingerprint; killer; humpback whales ... See more keywords

High Levels of Legacy and Emerging Contaminants in Killer Whales (Orcinus orca) from Norway, 2015 to 2017.

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Published in 2021 at "Environmental toxicology and chemistry"

DOI: 10.1002/etc.5064

Abstract: Little is known of the movement or presence of unregulated, emerging contaminants in top predators. The aim of the present study was to conduct the first screening of legacy and emerging contaminants in multiple tissues… read more here.

Keywords: killer whales; emerging contaminants; chemistry; legacy emerging ... See more keywords

The effect of formation swimming on tailbeat and breathing frequencies in killer whales

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Published in 2024 at "Behavioral Ecology and Sociobiology"

DOI: 10.1007/s00265-024-03492-1

Abstract: In many aquatic taxa, formation traveling can reduce the energetic expenditure of locomotion by exploiting the vorticity trails shed by neighbors or through drafting. Cetaceans, especially odontocetes, often swim in groups; nevertheless, the possibility that… read more here.

Keywords: formation swimming; formation; killer whales; tailbeat breathing ... See more keywords
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Aspects of the ecology of killer whale (Orcinus orca Linn.) groups in the near-shore waters of Sub-Antarctic Macquarie Island

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Published in 2018 at "Polar Biology"

DOI: 10.1007/s00300-018-2361-y

Abstract: Occurrences of killer whales (Orcinus orca) in the waters surrounding Sub-Antarctic Macquarie Island have been recorded since the 1820s; however, their presence only became the focus of scientific research in the mid-1990s. The analyses of… read more here.

Keywords: killer whales; island; macquarie island; sub antarctic ... See more keywords

Are vitamins A and E associated with persistent organic pollutants and fatty acids in the blubber of highly contaminated killer whales (Orcinus orca) from Greenland?

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Published in 2019 at "Environmental research"

DOI: 10.1016/j.envres.2019.108602

Abstract: We quantified blubber concentrations of vitamins A (retinol) and E (α-tocopherol) and evaluated associations with persistent organic pollutants (ΣPOPs) in 14 highly-contaminated killer whales (Orcinus orca) sampled in Greenland from 2012 to 2014. We considered… read more here.

Keywords: killer whales; killer; blubber; layer ... See more keywords

High concentrations of persistent organic pollutants in adult killer whales (Orcinus orca) and a foetus stranded in Ireland.

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Published in 2019 at "Marine pollution bulletin"

DOI: 10.1016/j.marpolbul.2019.110699

Abstract: Bio-accumulation of persistent organic pollutants including polychlorinated biphenyls (PCBs), brominated flame retardants and organochlorine pesticides continue to be of major concern for marine apex predators such as killer whales. The concentrations of 16 polychlorinated biphenyls,… read more here.

Keywords: killer whales; organic pollutants; stranded ireland; persistent organic ... See more keywords

Emerging Contaminants and New POPs (PFAS and HBCDD) in Endangered Southern Resident and Bigg's (Transient) Killer Whales (Orcinus orca): In Utero Maternal Transfer and Pollution Management Implications.

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Published in 2022 at "Environmental science & technology"

DOI: 10.1021/acs.est.2c04126

Abstract: Killer whales (Orcinus orca) have been deemed one of the most contaminated cetacean species in the world. However, concentrations and potential health implications of selected 'contaminants of emerging concern' (CECs) and new persistent organic pollutants… read more here.

Keywords: killer whales; maternal transfer; killer; southern resident ... See more keywords

Competing tradeoffs between increasing marine mammal predation and fisheries harvest of Chinook salmon

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Published in 2017 at "Scientific Reports"

DOI: 10.1038/s41598-017-14984-8

Abstract: Many marine mammal predators, particularly pinnipeds, have increased in abundance in recent decades, generating new challenges for balancing human uses with recovery goals via ecosystem-based management. We used a spatio-temporal bioenergetics model of the Northeast… read more here.

Keywords: killer whales; marine mammal; salmon; chinook salmon ... See more keywords
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Cold call: the acoustic repertoire of Ross Sea killer whales (Orcinus orca, Type C) in McMurdo Sound, Antarctica

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Published in 2020 at "Royal Society Open Science"

DOI: 10.1098/rsos.191228

Abstract: Killer whales (Orcinus orca) are top marine predators occurring globally. In Antarctic waters, five ecotypes have been described, with Type C being the smallest form of killer whale known. Acoustic recordings of nine encounters of… read more here.

Keywords: killer whales; killer; orcinus orca; mcmurdo sound ... See more keywords

Admixture Increases Genetic Diversity and Adaptive Potential in Australasian Killer Whales

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Published in 2025 at "Molecular Ecology"

DOI: 10.1111/mec.17689

Abstract: Admixture is the exchange of genetic variation between differentiated demes, resulting in ancestry within a population coalescing in multiple ancestral source populations. Low‐latitude killer whales (Orcinus orca) populations typically have higher genetic diversity than those… read more here.

Keywords: genetic diversity; population; killer whales; adaptive potential ... See more keywords

Observations and tracking of killer whales (Orcinus orca) with shore-based X-band marine radar at a marine energy test site

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Published in 2017 at "Marine Mammal Science"

DOI: 10.1111/mms.12395

Abstract: The Atlantic killer whale (Orcinus orca) is a top-level marine predator with a global range, being found in all of Earth’s oceans. The potential interaction between killer whales and marine renewable energy projects requires surveillance… read more here.

Keywords: killer whales; energy; marine; marine radar ... See more keywords