Humpback whales interfering when mammal-eating killer whales attack other species: mobbing behavior and interspecific altruism? [PDF]
, 2016 Humpback whales (Megaptera novaeangliae) are known to interfere with attacking killer whales (Orcinus orca). To investigate why, we reviewed accounts of 115 interactions between them. Humpbacks initiated the majority of interactions (57% vs.
Black, Nancy +13 more
core +2 more sources
Ecosystem-based Management for Protected Species in the North Pacific Fisheries [PDF]
, 2011 In the North Pacific Ocean, an ecosystem-based fishery management approach has been adopted. A significant objective of this approach is to reduce interactions between fishery-related activities and protected species.
Heltzel, Jeannie M. +2 more
core
Gray Seal Cannibalism at the Largest Colony in the World, Sable Island
Marine Mammal Science, Volume 42, Issue 2, April 2026.
Izzy Langley +5 more
wiley +1 more source
Abundance Trends of Pacific Salmon During a Quarter Century of ESA Protection
Fish and Fisheries, Volume 26, Issue 6, Page 1087-1106, November 2025.ABSTRACT Between 1989 and 2007, 28 Distinct Population Segments (DPS) of Pacific salmon (Oncorhynchus spp.) spawning in rivers in California and the Pacific Northwest (Oregon, Washington, Idaho) were listed (protected) under the US Endangered Species Act (ESA).
Michael J. Ford +17 more
wiley +1 more source
Reduced Adult Survival Estimated in Areas of Decline of Harbour Seal Populations in Scotland
Ecology and Evolution, Volume 15, Issue 10, October 2025.We applied mark–recapture models to photo‐ID data from harbour seals at three sites of contrasting population trajectories in Scotland and estimated apparent adult survival and fecundity rates. The results indicate that the causes of the decline are likely acting on adult survival, while evidence that a decrease in fecundity is driving the observed ...
M. Arso Civil +13 more
wiley +1 more source
Responsible Marine Wildlife Viewing [PDF]
, 2006 Marine wildlife viewing is good for Alaska's economy, and good for the participants' souls. But is it good for the animals? The answer is yes, if boaters and tide-poolers use care when near the animals.
Johnson, Terry
core
Analysing the natural population growth of a large marine mammal after a depletive harvest [PDF]
, 2017 An understanding of the underlying processes and comprehensive history of population growth after a harvest-driven depletion is necessary when assessing the long-term effectiveness of management and conservation strategies.
Crespo, Enrique Alberto +8 more
core +1 more source
Changes over time in the spatial distribution of walleye pollock (Theragra chalcogramma) in the Gulf of Alaska, 1984-1996 [PDF]
, 2002 Triennial bottom trawl survey data from 1984 to 1996 were used to evaluate changes in the summer distribution of walleye pollock in the western and central Gulf of Alaska. Differences between several age groups of pollock were evaluated. Distribution was
Babcock Hollowed, Anne +2 more
core
Steller sea lions and fisheries : competition at sea?
, 2011 A leading hypothesis to explain the decline of Steller sea lions (Eumetopias jubatus) in western Alaska is the reduction of prey abundance or change in prey distributions caused by commercial fisheries. We sought to improve on past studies that attempted to assess competition between sea lions and fisheries by estimating the local amounts of prey ...
openaire +1 more source
Adapting to Environmental and Social Change: Subsistence in Three Aleutian Communities [PDF]
, 2018 Our surroundings and society are both constantly evolving. Some changes are due to natural processes. People are responsible for other changes, because of what we do—for example, increasing the size of the population, expanding technology, and ...
Berman, Matthew, Schmidt, Jennifer
core