Habitat Loss and Over-Exploitation Are Leading to a Decline in Salmon Populations
One-quarter of freshwater animals are now threatened with extinction, and population declines in fresh waters outpace those in marine and terrestrial systems. Reports of salmonid fish decline are stark, with many populations and species listed as threatened or endangered.
Salmonids are a large family of ray-finned fish. In North America, it includes Pacific salmon on the west coast, Atlantic salmon on the east, and trout and char species such as brook trout and the introduced brown trout.
Salmonid fish are extremely important. Ecologically, they provide...
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