Same reason for every animal resource: over exploitation of the resource, habitat destruction/pollution, and climate change. This isn’t a recent thing, salmon stocks have been declining over the last 4 decades. The response to this decline of course has been to continue extracting the same amount year over year.
Same reason for every animal resource: over exploitation of the resource, habitat destruction/pollution, and climate change. This isn’t a recent thing, salmon stocks have been declining over the last 4 decades. The response to this decline of course has been to continue extracting the same amount year over year.