| http://www.w3.org/ns/prov#value | - There is no single cause for sockeye???s decline, according to Cohen. ???Stressors??? are to blame, and the list is lengthy, including climate change, infectious disease, contaminants, pre-spawn mortality, marine conditions, pathogens, human activities and development (logging, agriculture, gravel removal, pulp and paper mills, metal mining, municipal wastewater) predators and aquaculture.
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