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These are the salmon that provide recreational fishing opportunities that boost tourism and our economy. The state of Washington must fully fund fish barrier removal so it can meet its court ...
Since 2005, the state has corrected 3,750 fish passage barriers; made 4,700 miles of stream accessible to salmon; restored 26,000 riparian acres and more than 10,000 acres of estuaries and ...
In contrast to closed or recirculating systems, the open net cages of salmonid farming lower production costs, but provide no effective barrier to the discharge of wastes, parasites, and disease into the surrounding coastal waters. [13] Farmed salmon in open net cages can escape into wild habitats, for example, during storms.
After 21 Washington tribes asked the U.S. District Court to uphold salmon treaty rights in 2013, the court ordered the state to fix culverts that were barriers to salmon and steelhead in western ...
The transfer of parasites from open-net cage salmon farming, especially sea lice, has reduced numbers of wild salmon. The European Commission (2002) concluded, "The reduction of wild salmonid abundance is also linked to other factors but there is more and more scientific evidence establishing a direct link between the number of lice-infested wild fish and the presence of cages in the same ...
While the ranching systems currently used for tuna use open net cages at the surface of the sea (as is done also in salmon farming), the offshore technology usually uses submersible cages. [2] These large rigid cages – each one able to hold many thousands of fish – are anchored on the sea floor, but can move up and down the water column. [13]