Potential acoustic impacts of increased vessel traffic on Southern Resident Killer Whales
Analysis shows Salish Sea already too noisy for killer whales
Clark, Christopher. 2015. Potential Acoustic Impacts of Vessel Traffic from the Trans Mountain Expansion Project on Southern Resident Killer Whales. Prepared for the Raincoast Conservation Foundation for submission to the National Energy Board reviewing the Trans Mountain Expansion Project.
Download the pdf RCF – Clark- SRKW acoustics
This expert report describes the importance of sound to killer whales; it is as important to whales as vision is to humans. As such, there are serious concerns for even more noise in their critical habitat. Southern resident killer whales produce and listen to sounds in order to establish and maintain critical life functions: to navigate, find and select mates, maintain their social network, and locate and capture prey (especially Chinook salmon). The existing level of noise has already degraded critical habitat and studies suggest it has reduced the feeding efficiency of these whales. The Trans Mountain Project will increase noise levels with adverse affects to southern resident killer whales.
Author Affiliation
Christopher Clark, Ph.D.
I.P Johnson Senior Scientist, Bioacoustics Research Program, Cornell Lab of Ornithology
Senior Scientist, Department of Neurobiology and Behaviour Cornell University Ithaca, NY
Become a Raincoaster
Giving to Raincoast enables you to protect what you love most.
For 25 years, Raincoast has been furthering biodiversity conservation in BC. Thanks to your generous donations, among many other accomplishments, we have been able to end commercial trophy hunting of large carnivores in over 38,000 square kilometers of the Great Bear Rainforest, begin acquiring forest land in order to protect threatened Coastal Douglas-fir ecosystems, aid recovery of endangered Southern Resident killer whales by restoring Chinook salmon habitat, and establish a university research lab dedicated to applied conservation science. Strong partnerships are integral to our success.
Our efforts need to be maintained and advanced, now more than ever. As the biodiversity and climate crises collide, your support allows us to continue to make tangible conservation gains.
Biodiversity protection is the most important gift we can give the next generation. Join us as a Raincoaster today!
