Competing conservation objectives for predators and prey: estimating killer whale prey requirements for Chinook salmon. [PDF]
PLoS ONE, 2011 Ecosystem-based management (EBM) of marine resources attempts to conserve interacting species. In contrast to single-species fisheries management, EBM aims to identify and resolve conflicting objectives for different species.
Rob Williams +9 more
doaj +3 more sources
Behavioural heterogeneity across killer whale social units in their response to feeding opportunities from fisheries [PDF]
Ecology and EvolutionIntra‐population heterogeneity in the behavioural response of predators to changes in prey availability caused by human activities can have major evolutionary implications.
Erwan Auguin +5 more
doaj +2 more sources
Frontiers in Marine ScienceIntroductionThis study examines 20 years of killer whale (Orcinus orca) sightings (2002–2023) in the eastern Canadian Arctic, drawing from a comprehensive sighting database spanning 1850–2023.
Kristin Westdal +2 more
exaly +3 more sources
Stable Isotope Analysis (δ<sup>13</sup>C, δ<sup>15</sup>N and δ<sup>18</sup>O) of Killer Whale Dentine: Evaluating Treatment Methods and Establishing Best Practices. [PDF]
Rapid Commun Mass SpectromABSTRACT Rationale Stable isotope measurements in odontocete teeth can be used to reconstruct lifetime ecology, but some pre‐treatments may introduce bias. Isolating dentine collagen with HCl decalcification, removing the organic matrix or drying dentine prior to the analysis of structural carbonates can introduce unintended variability, limiting ...
Terrapon M +6 more
europepmc +2 more sources
Frontiers in Marine Science, 2021 Killer whale (Orcinus orca) populations specialize in both prey and prey acquisition tactics around the world and may be a primary evolutionary driver of the habits of small cetaceans.
Erin Ashe +3 more
doaj +1 more source
Cold call: the acoustic repertoire of Ross Sea killer whales (Orcinus orca, Type C) in McMurdo Sound, Antarctica [PDF]
Royal Society Open Science, 2020 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.
Rebecca Wellard +3 more
doaj +1 more source
Killer whale (Orcinus orca) interactions with blue-eye trevalla (Hyperoglyphe antarctica) longline fisheries [PDF]
PeerJ, 2018 Over the past five decades, marine mammal interactions with fisheries have become a major human-wildlife conflict globally. The emergence of longline fishing is concomitant with the development of depredation-type interactions i.e., marine mammals ...
Paul Tixier +6 more
doaj +2 more sources
Killer whale depredation and associated costs to Alaskan sablefish, Pacific halibut and Greenland turbot longliners. [PDF]
PLoS ONE, 2014 Killer whale (Orcinus orca) depredation (whales stealing or damaging fish caught on fishing gear) adversely impacts demersal longline fisheries for sablefish (Anoplopoma fimbria), Pacific halibut (Hippoglossus stenolepis) and Greenland turbot ...
Megan J Peterson +3 more
doaj +1 more source
Frontiers in Marine Science, 2023 To help evaluate the distribution, residency, population size and structuring (and hence conservation status) of the poorly known false killer whale Pseudorca crassidens in northern Australian waters, we undertook studies of sightings, movement patterns ...
Carol Palmer +18 more
doaj +1 more source
Evidence of killer whale predation on a yearling bowhead whale in Cumberland Sound, Nunavut
Arctic Science, 2020 Accounts of killer whale (Orcinus orca) predation on marine mammals in the Canadian Arctic are relatively uncommon. Although second-hand reports of killer whale predation events in the Arctic are more common in recent years, these observations are ...
Brent G. Young +5 more
doaj +1 more source