Soundscapes experienced by southern resident killer whales (Orcinus orca) in the Salish Sea and implications of vessel noise

2021 ◽  
Vol 150 (4) ◽  
pp. A251-A251
Author(s):  
Rianna Burnham ◽  
Svein Vagle ◽  
Pramod Thupaki ◽  
Caitlin O'Neill
Keyword(s):  
Orcinus Orca ◽  
Killer Whales ◽  
Salish Sea ◽  
Vessel Noise

scholarly journals Epimeletic behaviour in a Southern Resident Killer Whale (Orcinus orca)

2021 ◽  
Vol 134 (4) ◽  
pp. 316-320
Author(s):  
Taylor Shedd ◽  
Allison Northey ◽  
Shawn Larson
Keyword(s):  
Marine Mammals ◽  
Killer Whale ◽  
The United States ◽  
Small Population ◽  
Orcinus Orca ◽  
Salish Sea ◽  
The People ◽  
Species At Risk Act ◽  
Prey Scarcity ◽  
Vessel Noise

Southern Resident Killer Whale (SRKW, Orcinus orca) may be found year round in the Salish Sea. These orcas comprise three matrilineal pods (J, K, and L) and were listed as Endangered under the Canadian Species at Risk Act in 2003 and under the United States Endangered Species Act in 2005 because of prey scarcity, vessel noise and disturbance, small population size, and exposure to toxins. Since 1993, the Whale Museum has been operating Soundwatch, a boater education program for vessels. Soundwatch personnel are on the water in the central Salish Sea throughout the summer educating boaters on how to maneuver near marine mammals legally and documenting vessel regulation violations and marine mammal presence and behaviour. Starting on 24 July 2018, Soundwatch documented an adult female SRKW of J pod (J35) carrying a dead neonate calf. J35 continued to carry her dead calf for 17 consecutive days covering ~1600 km. Her story riveted the attention of the people of the Salish Sea as well as people around the world, evoking empathy for J35 and her loss as well as the plight of the Endangered SRKW population. Here, we tell her story and evaluate whether the behaviour J35 displayed toward her dead calf was an example of epimeletic behaviour, animal grief.

Intentional Stranding by Mammal-Hunting Killer Whales (Orcinus orca) in the Salish Sea

2020 ◽  
Vol 46 (6) ◽  
pp. 556-560
Author(s):  
Josh D. McInnes ◽  
Justine N. Buckmaster ◽  
Kelsey D. Cullen ◽  
Chelsea R. Mathieson ◽  
Josh P. Tawse
Keyword(s):  
Orcinus Orca ◽  
Killer Whales ◽  
Salish Sea

scholarly journals Speaking up: Killer whales (Orcinus orca) increase their call amplitude in response to vessel noise

2009 ◽  
Vol 125 (1) ◽  
pp. EL27-EL32 ◽  
Author(s):  
Marla M. Holt ◽  
Dawn P. Noren ◽  
Val Veirs ◽  
Candice K. Emmons ◽  
Scott Veirs
Keyword(s):  
Orcinus Orca ◽  
Killer Whales ◽  
Speaking Up ◽  
Vessel Noise

scholarly journals Measuring speed of vessels operating around endangered southern resident killer whales (Orcinus orca) in Salish Sea critical habitat

2022 ◽  
Vol 174 ◽  
pp. 113301
Author(s):  
Catherine F. Lo ◽  
Kimberly A. Nielsen ◽  
Erin Ashe ◽  
David E. Bain ◽  
Andrea Mendez-Bye ◽  
...  
Keyword(s):  
Orcinus Orca ◽  
Killer Whales ◽  
Salish Sea ◽  
Critical Habitat

Investigating acoustics, behavior and vessel noise exposure in endangered killer whales (Orcinus orca) using digital acoustic recording tags.

2011 ◽  
Vol 129 (4) ◽  
pp. 2606-2606
Author(s):  
Marla M. Holt ◽  
M. Bradley Hanson ◽  
Candice K. Emmons ◽  
Robin W. Baird ◽  
Jeff Hogan ◽  
...  
Keyword(s):  
Noise Exposure ◽  
Orcinus Orca ◽  
Killer Whales ◽  
Acoustic Recording ◽  
Vessel Noise

Personality in captive killer whales (Orcinus orca): A rating approach based on the five-factor model.

2019 ◽  
Vol 133 (2) ◽  
pp. 252-261 ◽  
Author(s):  
Yulán Úbeda ◽  
Sara Ortín ◽  
Judy St. Leger ◽  
Miquel Llorente ◽  
Javier Almunia
Keyword(s):  
Factor Model ◽  
Five Factor Model ◽  
Orcinus Orca ◽  
Killer Whales

Depredation by Killer Whales (Orcinus orca) on a Blue Shark (Prionace glauca) in Northeastern Atlantic

2020 ◽  
Vol 46 (5) ◽  
pp. 478-482
Author(s):  
Gonzalo Mucientes ◽  
Adriana González-Pestana
Keyword(s):  
Orcinus Orca ◽  
Killer Whales ◽  
Blue Shark ◽  
Prionace Glauca ◽  
Northeastern Atlantic

scholarly journals Family feud: permanent group splitting in a highly philopatric mammal, the killer whale (Orcinus orca)

2021 ◽  
Vol 75 (3) ◽  
Author(s):  
Eva H. Stredulinsky ◽  
Chris T. Darimont ◽  
Lance Barrett-Lennard ◽  
Graeme M. Ellis ◽  
John K. B. Ford
Keyword(s):  
Killer Whale ◽  
Group Structure ◽  
Group Living ◽  
Orcinus Orca ◽  
Learning Approaches ◽  
Killer Whales ◽  
Internal Factors ◽  
Individual Fitness ◽  
Leadership Experience

Abstract For animals that tend to remain with their natal group rather than individually disperse, group sizes may become too large to benefit individual fitness. In such cases, group splitting (or fission) allows philopatric animals to form more optimal group sizes without sacrificing all familiar social relationships. Although permanent group splitting is observed in many mammals, it occurs relatively infrequently. Here, we use combined generalized modeling and machine learning approaches to provide a comprehensive examination of group splitting in a population of killer whales (Orcinus orca) that occurred over three decades. Fission occurred both along and across maternal lines, where animals dispersed in parallel with their closest maternal kin. Group splitting was more common: (1) in larger natal groups, (2) when the common maternal ancestor was no longer alive, and (3) among groups with greater substructuring. The death of a matriarch did not appear to immediately trigger splitting. Our data suggest intragroup competition for food, leadership experience and kinship are important factors that influence group splitting in this population. Our approach provides a foundation for future studies to examine the dynamics and consequences of matrilineal fission in killer whales and other taxa. Significance statement Group living among mammals often involves long-term social affiliation, strengthened by kinship and cooperative behaviours. As such, changes in group membership may have significant consequences for individuals’ fitness and a population’s genetic structure. Permanent group splitting is a complex and relatively rare phenomenon that has yet to be examined in detail in killer whales. In the context of a growing population, in which offspring of both sexes remain with their mothers for life, we provide the first in-depth examination of group splitting in killer whales, where splitting occurs both along and across maternal lines. We also undertake the first comprehensive assessment of how killer whale intragroup cohesion is influenced by both external and internal factors, including group structure, population and group demography, and resource abundance.

Sounds associated with foraging and prey capture in individual fish-eating killer whales, Orcinus orca

2019 ◽  
Vol 146 (5) ◽  
pp. 3475-3486 ◽  
Author(s):  
Marla M. Holt ◽  
M. Bradley Hanson ◽  
Candice K. Emmons ◽  
David K. Haas ◽  
Deborah A. Giles ◽  
...  
Keyword(s):  
Prey Capture ◽  
Orcinus Orca ◽  
Killer Whales ◽  
Individual Fish
Sign in / Sign up

Export Citation Format

Share Document