Sentences with word «coho»
In a move that is certain to provoke a bitter battle in Congress, the US National Marine Fisheries Service has proposed listing three west coast populations of coho salmon as threatened.
newscientist.com
«This is the first study to examine mate choice among wild - spawning fish of both hatchery and wild origin, and the results suggest that greater diversity of immune genes between wild - born pairs of coho salmon may increase offspring survival,» said Amelia Whitcomb, who did the research as a master's student at OSU and is lead author on the publication.
Since 2009, NPS and Parks Conservancy staff have worked together to improve habitat for endangered coho salmon and threatened steelhead trout, maintain habitat for threatened California red - legged frogs, decrease flooding on nearby roads, and create a self - sustaining ecosystem that requires minimal future intervention.
«Urban stormwater runoff carries a complex mixture of chemicals into fish habitats,» said McIntyre, who is based at the WSU Research and Extension Center in Puyallup, Wash. «We have seen that stormwater runoff can kill adult coho salmon in urban creeks, and we know that it can cause defects in the hearts of developing fish.»
Across both forests, sustainable forest management practices have been implemented resulting in the improvement of water quality and habitat for coho salmon, steelhead trout and spotted owl.
These include prized sporting fish such as the Klamath River summer steelhead and other trout, the Central Valley Chinook salmon, the Central Coast coho salmon and many others that depend on cold water.
Newly published research co-authored by scientists at Simon Fraser University and the Raincoast Conservation Foundation shows juvenile coho salmon benefit from dining on the distant remains of their spawning pink and chum cousins.
An aquaculture company devises a new, sustainable process that raises Pacific coho salmon in freshwater
But their crucial contribution to stream ecosystems may benefit the health of coho populations.»
«And a whole bunch of chemicals we are working to identify so that we can protect more delicate species like coho salmon from the effects of human pollution.»
In the same toxic stormwater brew that killed coho salmon in less than three hours, their chum cousins did just fine.
The authors do note that their study was based on species of hatchery - raised coho and Chinook, which, like most hatchery raised salmonids, have been criticized for lacking diversity due to the controlled environments of their early life stages.
Carolyn manages ecological restoration projects in the Redwood Creek Watershed to restore natural creek and wetland processes as well as enhancing the habitat for the federally listed coho salmon, steelhead trout, and California red - legged frog.
This September afternoon, against a backdrop of cedar forests and horse pastures, you pull your lawn chair into a welcoming circle of family, friends, and neighbors as you watch Kyle, a lanky man with a neat gray beard, working patiently on 70 hearty pounds of Southeast - caught coho.
A new study by researchers at Oregon State University suggests that wild coho salmon that choose mates with disease - resistant genes different from their own are more likely to produce greater numbers of adult offspring returning to the river some three years later.
Filtered water blunted the sensory damage to zebrafish but not coho.
2009 Accomplishments • Restored a 1.4 - acre area adjacent to the existing tidal lagoon to a native brackish wetland • Expanded the tidal lagoon to improve coho salmon and steelhead trout habitat • Created an emergent wetland for California red - legged frog breeding habitat • Reconfigured the southern end of the parking lot to increase natural creek function and reduce flooding
These restoration efforts have created habitat for threatened and endangered species including coho salmon, steelhead trout, and California red - legged frogs.
The project aims to benefit coho and threatened steelhead trout by restoring the floodplain and expanding the tidal lagoon and backwater habitat at Muir Beach — both critical for the survival of adult and juvenile fish — within the larger context of restoring a damaged landscape to its natural functions.
The program involves the students participating in a hatchery tour and coho spawn, then incubating fifty of the eggs in a classroom aquarium.
As coho return to creeks to spawn, they develop a reddish coloring along the belly.
The Kyle Family Barbecue, a monument to the fishing season's end and autumn's commencement, draws dozens of friends and neighbors to share another Alaskan classic — brilliant - skinned coho salmon pulled from a labyrinth of misty Southeast waterways.
Oven - Roasted Coho Salmon with Leeks and Chanterelle Mushrooms 1 cup leeks, white and pale green parts only 2 6 - oz skinless coho salmon fillets, deboned Sea salt and freshly ground pepper 1 tbsp butter 1 clove garlic, minced 1 cup sliced chanterelle mushrooms 1/3 cup chicken sotck 1/3 cup white wine 1 tsp herbes de provence 1 tbsp olive oil
One of the great happy points of living on the Oregon coast is that we have access to some pretty extraordinary seafood, including locally smoked coho salmon.
There is a three - foot moderate roll, the lake trout and coho trailers will be out today in all of their overequipped glory.
It is a fine method for foul - hooking and snagging coho and chinook, even spawning steelhead and lake trout.
Commandeering streams, growers divert the water into high - tech greenhouses, to the detriment of the aquatic life lower in the drainage, including the threatened coho salmon.
To gauge the validity of these worries, researchers at the Center for Aquaculture and Environmental Research in Vancouver, Canada, took a look at the transgenic coho salmon.
The fish make extra growth hormone, and when raised in a hatchery they bulk up to 25 times the size of normal coho.
Research by Robert Bilby, an aquatic ecologist at the Weyerhaeuser Company, shows that up to 78 percent of the stomach contents of young coho salmon and steelhead are salmon carcasses and eggs.
Chinook salmon can move bigger pieces of material, while coho tend to move finer material.
The new research shows that juvenile coho abundance is up to three times higher in streams with abundant pink and chum compared to streams with none.
The researchers also found that hatchery - reared coho — for some unknown reason — do not appear to have the same ability to select mates that are genetically diverse, which may, in part, explain their comparative lower reproductive success.
Fishes can rebound when fishing pressure is removed, just as Maine haddock and Washington State coho salmon both have.
THE three - year drought threatens to wipe out the last of the Muir Woods coho salmon that make their way each year from the Pacific to spawn in a freshwater creek running through the redwoods near San Francisco
In experiments with GM coho salmon, the transgenic fish grow rapidly in a hatchery tank, but not in a simulated natural stream.
This could be because coho take longer than zebrafish to develop, making their embryos more sensitive to trace amounts of toxic substances.
Experiments on both larval zebrafish, a model for salmon, and actual coho salmon showed that toxic runoff can also damage hair - like sensors the fish use to find food, sense predators, and find their way in the current.
With Redwood Creek coho salmon on the brink of disappearing, biologists launched a last - ditch attempt to save them: harvesting local fish, raising them to reproductive maturity at a hatchery, and then returning them to the wild.
But there's another challenge to producing a healthy and sustainable coho population.
Retuning coho bring back nutrients from the ocean that the trees need, making this ancient cycle a win - win situation for all.»
During the freshwater phase of their lives, coho face myriad challenges, from dams to droughts.
«It's those kinds of things that throw a real monkey wrench into coho survival.»
Pulling the end of the line close to the beginning of the reel, an 8 - pound coho salmon (more commonly referred to as a silver salmon) suddenly appeared thrashing on the water surface.
In the spring, coho hatchlings - known as alevins - emerge pencil - thin, with a ballooning yolk sack still attached to their bodies, and large eyes.
These eggs remain in the gravel throughout the winter and coho embryos develop.
Lately coho, or silver, salmon have been the main attraction.
Marble River chinook production targets are one million smolts, while coho targets are 200,000 fry and 50,000 smolts.