Fraser River chinook, one of the most important food sources for southern resident killer whales, are in steep decline and should be listed for protection as an endangered species, a Canadian independent science committee ...
Plants & Animals
Dec 10, 2018
1
7
Once spring-run chinook salmon disappear, they are not likely to re-emerge, indicates genetic analysis of the revered wild fish in a study led by the University of California, Davis. Prompt conservation action could preserve ...
Ecology
Dec 4, 2018
0
160
Fish stocking as a fisheries compensation method in hydropower operations no longer meets latest legal and scientific requirements, according to a new study from the University of Eastern Finland. Published in Water International, ...
Ecology
Nov 30, 2018
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4
Male salmon are maturing earlier and becoming smaller, and it shows in their genes. This was the discovery of a study that examined scale samples from salmon in the River Teno in Northern Finland over a 40-year period, and ...
Ecology
Nov 14, 2018
0
7
Hansen Creek, a small stream in southwest Alaska, is hard to pick out on a map. It's just over a mile long and about 4 inches deep. Crossing from one bank to the other takes about five big steps.
Ecology
Oct 23, 2018
0
7
A new study shows that Atlantic salmon use the Earth's magnetic field as a navigational tool—much like their cousins, Pacific salmon—and don't lose that ability through several generations of fish even after they have ...
Plants & Animals
Oct 8, 2018
0
127
A Simon Fraser University study has found that steelhead trout have a remarkable life-cycle variation that responds to changes in temperature and numbers of other species of salmon. They may go to the ocean when they are ...
Ecology
Sep 28, 2018
0
27
Researchers carrying out unprecedented efforts to save an ailing young killer whale in the U.S. Northwest released live salmon into waters in front of the free-swimming orca but didn't see her take any of the fish.
Plants & Animals
Aug 13, 2018
0
5
A study by Simon Fraser University aquatic ecologists Emma Atkinson and John Reynolds reveals that young salmon may jump out of water to remove sea lice.
Ecology
Aug 13, 2018
0
7
Research shows that Kodiak brown bears that sync their stream-to-stream movements to salmon spawning patterns eat longer and more than bears that don't, with one bear in the study consuming greater than 2 tons of fish in ...
Ecology
Jul 23, 2018
0
92
