Conservationists: Atlantic salmon decline worsens

2017-06-20 06:15
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Bangor -  Fewer of North America's Atlantic salmon are making it back to rivers to spawn, which bodes poorly for the future of the imperiled fish, an international conservation group says.

Atlantic salmon were once abundant in the rivers of New England and Atlantic Canada, but they are now endangered or have disappeared in parts of both areas. The salmon are born in rivers, swim to the Atlantic and return to where they were spawned.

The New Brunswick, Canada-based Atlantic Salmon Federation released a report this month that says total estimated returns of the fish to North America in 2016 was a little more than a half million salmon. That is a 27% decrease from the previous year.

The group says young salmon who spent only one winter at sea before returning to the river, called grilse, fared especially poorly last year. They returned at a rate nearly a third lower than 2015, the group said.

Presence of dams

The salmon federation warns that signs show 2017 is looking like another poor year, said spokesperson Neville Crabbe.

"What do we do? We've asked people to choose to kill fewer salmon," Crabbe said. "The long term solution is government to government agreements".

Atlantic salmon face a number of challenges in the wild, ranging from the presence of river dams to continued fishing pressure off Canada and Greenland.

Crabbe said the changing environment of the North Atlantic has also impacted populations. Because of changes in availability of the fish they prey upon, the salmon have to exert the same amount of energy to eat the same amount of food, he said. That makes it more difficult for the fish to live long enough to make it back to rivers and spawn.

The salmon federation's report states that Greenland fishermen are catching fewer of the fish, which could be a signal of poor survival of salmon in the wild. Greenland fishermen caught less than half as many salmon last year as in 2015, the report states.


Read more on:    us  |  marine life

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