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Latest Fish hatchery Stories

Mixed News For Pacific Northwest Oyster Industry In World Oceans Month
2013-06-13 10:38:01

National Science Foundation Ocean acidification inhibits shell formation, but interventions at hatcheries may offset some effects, scientists find For the past several years, it has struggled with significant losses due to ocean acidification. Oyster larvae have had mortality rates high enough to render production no longer economically feasible. Now a new study documents why oysters appear so sensitive to increasing acidity, but also offers some hope for the future. It isn't...

2013-06-05 11:47:01

Scientists in the College of Veterinary Medicine at Oregon State University have developed a new, inexpensive and precise way to detect the toxin secreted by Vibrio tubiashii, a bacterial disease that a few years ago caused millions of dollars in losses to the oyster aquaculture industry in the Pacific Northwest. When perfected and commercialized, the new assay should give oyster growers an early warning system to tell when they have a problem with high levels of this toxin and must take...

Ocean Acidification Linked With Larval Oyster Failure in Hatcheries
2012-04-13 03:43:11

Increase in ocean acidification led to collapse of oyster seed production at Oregon hatchery Marine researchers have definitively linked the collapse of oyster seed production at a commercial oyster hatchery in Oregon to an increase in ocean acidification. Larval growth at the hatchery declined to a level considered by the owners to be "non-economically viable." A study by the scientists found that increased seawater carbon dioxide (CO2) levels, resulting in more corrosive ocean...

2012-04-11 22:27:50

Researchers at Oregon State University have definitively linked an increase in ocean acidification to the collapse of oyster seed production at a commercial oyster hatchery in Oregon, where larval growth had declined to a level considered by the owners to be “non-economically viable.” A study by the researchers found that elevated seawater carbon dioxide (CO2) levels, resulting in more corrosive ocean water, inhibited the larval oysters from developing their shells and growing...

2012-02-09 11:20:28

Study finds most Chinook salmon spawning in Mokelumne River were hatchery raised Scientists have found that only about ten percent of the fall-run Chinook salmon spawning in California's Mokelumne River are naturally produced wild salmon. A massive influx of hatchery-raised fish that return to spawn in the wild is masking the fact that too few wild fish are returning to sustain a natural population in the river. The study, published in the online journal PLoS ONE, highlights the danger...

Hatcheries Change Salmon Genetics After A Single Generation
2011-12-20 10:28:33

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 a wild environment. These findings, published this week in Proceedings of the National Academy of Sciences, show a speed of evolution and natural selection that surprised researchers. They confirmed that a primary impact of hatcheries is a change in fish genetics, as...

2011-02-25 12:41:00

SACRAMENTO, Calif., Feb. 25, 2011 /PRNewswire/ -- Today, the California Association for Recreational Fishing (CARF) announced its opposition to new regulations being unveiled at the March 3rd California Fish and Game Commission hearing being held in Los Angeles. For the first time in over 30 years, new regulations will require fishermen to purchase fishing licenses to catch privately stocked fish on private property as well as private fee for fishing lakes. In addition, these new...

2009-01-07 18:16:11

Massachusetts wildlife officials said a seal that found its way to the state fish hatchery was caught and released at a beach 20 miles away. Officials said the female harbor seal, which experts estimate was born in May, was first spotted at about 7 a.m. Tuesday by Division of Fisheries and Wildlife employees making rounds at the Sandwich Hatchery, the Cape Cod Times of Hyannis, Mass., reported Wednesday. The seal, which was released 20 miles from the hatchery at a beach in West Dennis, had to...

2008-08-04 12:00:00

By Andrew Weeks, The Times-News, Twin Falls, Idaho Aug. 4--Sometimes nature can use a little boost. High water levels and faster flows along parts of the Snake River -- such as the Hagerman stretch below Lower Salmon Falls Dam -- is giving a boost to young steelhead trout and salmon as they make their way to the Pacific Ocean. "That's why the water is up," said Randy McBride, owner of High Adventure River Tours in Hagerman. Water levels along McBride's 10-mile float tour, from...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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