Researchers drawing on 100-year-old sources of salmon data have found that recent returns of wild adult sockeye salmon to the Skeena River—Canada’s second largest salmon watershed— are 75 percent lower than during historical times. Research carried out by Simon Fraser University and Fisheries and Oceans Canada and published today in Conservation Letters reveals that wild sockeye populations have declined by as much as 56-99 percent over the last century.
Click here for original story, Century-old fish scales reveals startling decline in salmon populations
Source: Phys.org