Posted on June 22, 2016 by Al B.
Another bad idea makes a comeback. Can’t we just kill this idea before it becomes another fiasco? Just to the north of us here, in British Columbia, net pens are creating huge problems because of waste and disease. There is no good reason to bring back private hatcheries and net pens, even if they are labeled with a ‘fun’ label like, salmon ranching. It’s just a PR trick.
OLYMPIA — A long-prohibited method of salmon farming is gaining support among state fisheries managers.
The state Department of Fish and Wildlife is dusting off the idea of allowing private companies to raise and release salmon for commercial harvests. Known as salmon ranching, the practice boomed in the Northwest during the 1970s. It went bust in Oregon and was outlawed in Washington but continues to thrive in Alaska. Norway and Japan are world leaders in the business, producing huge quantities of ranched salmon, lobster, cod and other species.
Filed under: Hatcheries Salmon, Puget Sound, Salmon, Salmon Recovery | Tagged: hatcheries | Leave a comment »
Posted on August 28, 2015 by Al B.
The Makah have had to kill off their hatchery fish. Not enough water. Too much heat.
This summer’s extreme drought is becoming increasingly deadly for fish in the northwest.
The state department of Fish and Wildlife had already lost about one and a half million juvenile fish in overheated rivers and streams in Washington at the end of July, due to this summer’s historically warm temperatures and low water levels
Filed under: Olympic Peninsula | Tagged: hatcheries, makah, Olympic Peninsula, Salmon | Leave a comment »
Posted on July 31, 2015 by Al B.
The scientific debate over whether hatchery fish are outcompeting natives and subsequent lawsuits, have had an effect. This is good news for wild fish and wild fish advocates. The hatchery fish have been proven to lead to disasterous results in wild fish recovery. The study on wild vs. hatchery fish in the Rogue River basin is what has prompted this. The Rogue, a river that has never had a hatchery, has seen increases in native fish, while the similar river in Washington, from an environmental POV, the Skagit, which includes hatcheries, has seen their wild fish decimated. The key event that has been shown to be the differentiator is the introduction of hatchery fish into the Skagit. Now WDFW is acting on these lawsuits.
The production of hatchery Chinook in Willapa Bay will decrease by more than one-third as a result of a policy adopted recently by the Washington Fish and Wildlife Commission. The policy, adopted in June, also is likely to decrease the number of fish commercial fishermen can catch if the commission’s action survives a legal challenge. Washington Department of Fish and Wildlife officials have said that they needed to adopt the new policy to avoid having the Chinook listed under the federal Endangered Species Act. (Longview Daily News)
Filed under: Puget Sound | Tagged: hatcheries, Salmon, willapa bay | Leave a comment »
Posted on December 16, 2014 by Al B.
More news on the science coming in that definitively is pointing to Ocean Acidification being the culprit in hatchery mortality rates here.
The mortality of larval Pacific oysters in Northwest hatcheries has been linked to ocean acidification. Yet the rate of increase in carbon dioxide in the atmosphere and the decrease of pH in near-shore waters have been questioned as being severe enough to cause the die-offs. Now, a new study of Pacific oyster and Mediterranean mussel larvae found that the earliest larval stages are sensitive to saturation state, rather than carbon dioxide (CO2) or pH (acidity) per se. Saturation state is a measure of how corrosive seawater is to the calcium carbonate shells made by bivalve larvae, and how easy it is for larvae to produce their shells. A lower saturation rate is associated with more corrosive seawater. Cheryl Dybas reports. (PHYS.ORG)
And this article follows on it.
For those wanting to understand the science behind “saturation state” you can find the definition down this page. Just “find” saturation state when you get to it. The formula is there.
Filed under: Puget Sound | Tagged: hatcheries, ocean acidification, oysters, Shellfish | Leave a comment »
Posted on November 21, 2014 by Al B.
There has been some controversy in the last year over steelhead and the hatcheries. I’ve covered the issue here if you wish to search for background info.
The public will now have until 5 p.m. Friday, Jan. 23, to comment on the draft environmental impact statement for Puget Sound hatcheries. The National Oceanic and Atmospheric Administration announced the public comment period extension Thursday. The agency decided to grant the extension in response to a formal request…. The draft report is available online at http://www.skagit.ws/NOAAsalmon. Kimberly Cauvel reports. (Skagit Valley Herald)
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Posted on August 11, 2014 by Al B.
From the Columbia Basin Fish and Wildlife News Bulletin….Science continues to find that hatcheries, were probably not as good an idea as others.
Still, the one constant in all the studies reviewed by researchers from Oregon State University and NOAA’s Northwest Fisheries Science Center is that these programs result in lower reproductive success of fish whose early life begins in a hatchery.
“One important finding of this study is how consistent the results were across different systems. There has been a tendency to view each study’s results in isolation, but when you combine them all together the pattern of reduced reproductive success across all the studies is pretty clear,” said Michael Ford, co-author of the study and director of the Northwest Fisheries Science Center’s Conservation Biology Division in Seattle…”
Read the rest of the story at
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Posted on June 4, 2014 by Al B.
Hmmm. more bad news on hatchery fish. Obviously more work needs to be done to validate these findings.
A new study suggests steelhead trout can have trouble using the Earth’s magnetic field to navigate if they were raised in a hatchery, where the field may be distorted by iron pipes. Scientists at the Oregon Hatchery Research Center raised two sets of fish: one outside the hatchery with a natural magnetic field, and one inside the hatchery where the field was distorted. Fish raised outside the hatchery oriented themselves to changes in the magnetic field, but fish raised in the hatchery’s distorted magnetic field did not. (Associated Press)
Filed under: Puget Sound | Tagged: fish hatcheries, hatcheries, Salmon, steelhead | Leave a comment »