Sentences with phrase «of spawning salmon»

Enjoy the calm and serenity of the wilderness from lush green forests to meadows of wildflowers to waterfalls of spawning salmon.

There were several things that I wanted to see at Brooks Camp: a sow with four cubs, a pool of spawning salmon, a wolf, and a bear family.

The summer and fall months often bring harbourseals, stellar sea lions, and California sea lions in search of spawning salmon and herring.

By learning more about the relationships among salmon abundance and bear population dynamics, Darimont hopes to be able to determine whether there is a threshold of the spawning salmon biomass that would prevent the coastal grizzly bear population from declining.

«I hope this will highlight to fisheries decision - makers the ecological benefits of robust populations of spawning salmon,» says Nelson.

Not exact matches

And the spawning run of smelts, which constitute the salmon's principal feed, was the largest since 1957.

Atlantic salmon at the end of their spawning run are the bravest, most beautiful fish in the world when they come into the river with the violet sheen on their silver flanks.

Purely and simply he loves Atlantic salmon, and this was why, on this hard winter's afternoon, we were reconnoitering the hill streams, looking for the patches of white pebbles where the salmon had used their broad tails to carve out the spawning beds, looking for the vulnerable pools where the fish lie.

Thanks to the salmon's excellent jumping abilities, a number of animals can complete the arduous journey to the spawning area — only to end up in an area that is unfit for spawning.

The construction of water mills caused the destruction of the gravel beds in streams, making them unsuitable for salmon to spawn.

The research revealed that catching and releasing Atlantic salmon close to their spawning time did not harm their chances of reproduction.

Big Creek and the upper tributaries of the Middle Fork provide the best spawning habitat remaining in Idaho for the severely depleted Pacific salmon.

Spawning habitat seems to be optimal in parts of the Frank Church Wilderness, and if these conditions can be described and quantified, they might be offered as a prescription for ailing salmon elsewhere.

In Alaska, biologists are learning that when wild salmon are free to swim upstream to spawn, dozens of other species flourish too

In the twilight of their brief lives adult Pacific salmon migrate back to their river of birth to spawn, perpetuating a four - year life cycle that boomerangs thousands of kilometers into the ocean.

The salmon naturally expire after the Herculean effort of swimming upstream and spawning, but too many fish perishing prematurely before they've had a chance to lay eggs and fertilize them spells trouble.

Much as migrating birds or spawning insects rely on the timing of spring so that there is enough available food when they arrive in a given region, so, too, the salmon rely on the timing of phytoplankton blooms, followed by the zooplankton bloom that then feeds baby salmon.

«One of the most important findings of this study was the fact that salmon were already compromised before entering the river» on their journey home to spawn, she wrote.

Chum salmon swim hundreds of miles upstream to spawn, and served as food for ancient as well as modern Alaskans.

BALTIMORE — The return of salmon, flashing red and silver as they struggle upstream to spawn, is a well - studied and celebrated event.

Ted Gresh, an environmental consultant in Portland, Oregon, estimates that during the historical runs in the Pacific Northwest, 500 million pounds of salmon returned to spawn and die each year.

Every summer, sockeye also spawn by the hundreds of thousands here, and an excess of salmon eggs is left floating in the rivers or collecting in clusters along the bank.

Then in 1837, a new dam barred salmon from most of their spawning beds and buried the river under a reservoir.

The next year, Paul Christman, a fisheries biologist with the Maine Atlantic Salmon Commission, found proof that Atlantic salmon were spawning: He located six new gravel nests sheltering the bright red eggs of the Atlantic salmon as far as 18 miles upstream.

More studies are needed to know whether this is happening, though it's likely the trout wouldn't have access to the same abundance of salmon eggs, researchers said, because the spawning activity in Washington's rivers is much less than in Alaska.

Perhaps the hardest hit and most talked about salmon fishery in the world — California's Sacramento River Chinook run — has been off - limits to fishers for two years now because of the low volume of wild fish returning to spawn.

Sockeye salmon that sprint to spawning grounds through fast - moving waters may be at risk, suggests new research by University of British Columbia scientists.

Because juvenile salmon, or smolt, leave their freshwater spawning grounds to spend an average of two to three years maturing at sea, the boom in 2001 was right on schedule.

There, the bone fragments of large salmon, migrating from marine water to their freshwater spawning places, were found in the Middle Palaeolithic archaeological layers, dated to around 42 to 48,000 years ago, and probably deposited by Neandertals.

Even as the effects of the Blob and El Nino dissipate, the central and southern parts of the West Coast face low snow pack and potential drought in 2018 that could put salmon at continued risk as they migrate back up rivers to spawn.

In 2004, for example, 80 % of some salmon populations died of heat stress before reaching their spawning destinations.

Aquatic biologist Daniel Schindler of UW agrees, saying that salmon may change the timing of when they go upriver to spawn to avoid extreme river temperatures.

«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.

The paper's lead author Nelson says:» «We found an indirect link between spawning pink and chum salmon, and juveniles of another species, coho.»

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.

While they can use their sense of smell to get back home to spawn, Chinook salmon (Oncorhynchus tshawytscha) have an inborn sense of direction that functions like a GPS.

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

The state aims to protect 56 plant and animal species as part of its plan, including Chinook salmon that swim upstream through the delta to spawn.

«These results are consistent with the idea that juvenile salmon imprint on (i.e. learn and remember) the magnetic signature of their home river, and then seek that same magnetic signature during their spawning migration,» said Nathan Putman, a post-doctoral researcher at Oregon State University and the lead author of the study.

Another benefit of Kamchatka's isolation is protection for populations of chum, sockeye, chinook, coho and pink salmon, which return by the millions to spawn in Kamchatka's rivers.

With the prolificacy of traditional publishing, and indie publishing (an unending tsunami of content in Bob's words), being published today is akin to the lone salmon going downstream against the horny hoards during spawning season.

By erecting thirty thousand dams of significant size across the American West, they dewatered countless rivers, wiped out millions of acres of riparian habitat, shut off many thousands of river miles of salmon habitat, silted over spawning beds, poisoned return flows with agricultural chemicals, set the plague of livestock loose on the arid land — in a nutshell they made it close to impossible for numerous native species to survive.

Always avoid feeding raw salmon, and be cautious of river access during spawning.

Heavy use of this road caused erosion and deposited sediment in Redwood Creek — damaging the spawning grounds of the endangered coho salmon and threatened steelhead trout.

In the fall, a million sockeye salmon journey up the river to spawn, and dozens of grizzly bears come to its banks to dine before winter.

Since then, at least one of the hatchery salmon was spotted spawning at Muir Woods, near serene Cathedral Grove.

In the winter of 2009, scientists estimated that a total 45 adult coho salmon returned to the Redwood Creek spawning grounds.

The pool of water at the base of the waterfall is the final stop for many salmon who are born here, and who end up returning to die here after an arduous trip upstream to finally spawn at the very spot where they started their lives.

Today, one of the primary purposes of Katmai National Park and Preserve, based on legislation, is to protect habitats for and populations of fish and wildlife, including, but not limited to, high concentrations of brown bears and their denning areas, and maintain unimpaired the watersheds and water habitat vital to red salmon spawning.

Due to the island's many freshwater lakes and streams that feed into the protected island channels — and therefore prime spawning locations — it is here where sport fishermen from around the world flock for some of the best salmon fishing in the world.