Food quality, not just quantity, matters when it comes to the health and survival of the southern resident killer whales.
Articles on Chinook salmon
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The declining salmon and whale numbers raise a critical question: Is the southern resident killer whale population solely reliant on the abundance of salmon? And, if so, since when?
A study of viral variants finds Piscine orthoreovirus continuously spills over from farmed salmon to wild salmon.
As climate change warms northern rivers and changes precipitation patterns, some types of cold-loving fish are failing.
Regulations have lowered mercury emissions globally, but the risks to ocean ecosystems and human health may be getting worse.
Noisy waters may be making it harder for southern resident killer whales to communicate with each other and find their food.
Top contributors
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Master's student, Dalhousie University
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Professor, School for Resource and Environmental Studies, Dalhousie University
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Conservation Planning Biologist, Wildlife Conservation Society Canada and Adjunct Professor of Conservation Biology, University of Saskatchewan
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Postdoctoral fellow, Cooke Lab, Carleton University
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Professor and York University Research Chair in Global Change Biology; Director of the United Nations Institute for Training and Research Global Water Academy, York University, Canada
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PhD candidate, Oceanography, University of British Columbia
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Liber Ero Postdoctoral Fellow, Department of Medicine, University of British Columbia
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Adjunct professor, Simon Fraser University
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PhD Candidate, Institute for the Oceans and Fisheries, University of British Columbia