The impact of hatcheries on salmon is so profound that in just one generation traits are selected that allow fish to survive and prosper in the hatchery environment, at the cost of their ability to thrive and reproduce in ...
Evolution
Dec 19, 2011
100
0
Decades ago, Lake Michigan teemed with nutrients and green algae, casting a brownish-green hue that resembled the mouth of an inland river rather than a vast, open-water lake.
Environment
Jan 31, 2018
0
46
A team of researchers from the Norwegian Institute for Nature Research and Rådgivende Biologer, has found that interbreeding between farmed salmon and wild salmon is changing the life cycle of the wild salmon. In their paper ...
The vaccines used by commercial fish farmers are not protecting fish from disease, according to a new study.
Ecology
Jan 22, 2018
0
462
Endangered Southern Resident killer whales prey on a diversity of Chinook and other salmon. The stocks come from an enormous geographic range as far north as Alaska and as far south as California's Central Valley, a new analysis ...
Ecology
Mar 3, 2021
0
375
Releasing captive-bred Atlantic salmon into the ocean, a long-standing practice to boost stocks for commercial fishing, reduces the rate at which wild populations reproduce and may ultimately do more harm than good, researchers ...
Plants & Animals
Oct 21, 2020
0
623
Four decades of conservation spending totaling more than $9 billion in inflation-adjusted tax dollars has failed to improve stocks of wild salmon and steelhead in the Columbia River Basin, according to Oregon State University ...
Ecology
Jul 28, 2023
5
219
In a peaceful bay off Norway's Hitra island, massive nets teem with salmon destined for dinner tables worldwide—an export boon for the Nordic nation that comes with a long list of environmental side-effects.
Ecology
Sep 28, 2016
0
8
Across the North Pacific, salmon fisheries are struggling with climate variability, declining fish populations, and a lack of sustainable fishing opportunities. According to a study published today in BioScience from a team ...
Plants & Animals
Dec 9, 2020
0
20
One of Alaska's most abundant freshwater fish species is altering its breeding patterns in response to climate change. This could impact the ecology of northern lakes, which already acutely feel the effects of a changing ...
Ecology
Jan 19, 2017
0
9
