Sentences with phrase «juvenile salmon»

They also eat some small fish, including juvenile salmon when they're available.

Though the appearance was fish - like, the design didn't fully capture the experience of real juvenile salmon swimming through dams.

This design was later replaced with by a hollow tube stuffed with electronics to better capture the experience of real juvenile salmon swimming through dams.

The scientists are currently studying juvenile salmon to see if the genomic signature is already present before they go out to the open ocean.

Recent research surveys have found fewer juvenile salmon, and consequently adult salmon returns will likely remain depressed for a few years until successive generations benefit from improving ocean conditions.

Despite these challenges, most juvenile salmon survive this journey every year.

There was snow, and then suddenly we were in our boats with nets and buckets catching the year's first juvenile salmon.

Ultimately, all of these changes in nearshore habitat probably alter the feeding and migration patterns of juvenile salmon in the Sound.

«There are small pocket areas created through restoration that provide unique refuge for juvenile salmon.»

WHALE CLOSE - UP A humpback whale repeatedly gulps juvenile salmon recently released in this quiet cove by a hatchery in southeastern Alaska.

A humpback whale repeatedly gulps juvenile salmon recently released in this quiet cove by a hatchery in southeastern Alaska.

Rice paddies at Knaggs Ranch, along the Yolo Bypass, are flooded each winter for the landmark Nigiri Project, an experiment designed to mimic the vast marshlands that once allowed juvenile salmon migrating along the Sacramento River to fatten up before their perilous journey to the sea.

3 Meningoencephalitis associated with Carnobacterium maltaromaticaum - like bacteria in stranded juvenile salmon sharks (Lamna ditropsis).

«We have shown that the proposed development area supports particularly high abundances of juvenile salmon from more than 40 populations that are harvested in at least 10 First Nations territories throughout the Skeena watershed and beyond.

Based on the numbers of lice on juvenile salmon in 2015, researchers predicted an additional 9 — 39 per cent decline in returning pink salmon due to the outbreak.

Fishing for the right size During the summer of 2013, about 700 juvenile salmon implanted with the injectable tag were released in the Snake River in Washington state.

Juvenile salmon exposed to oil grew more slowly, with those exposed to the highest concentrations growing the slowest.

Each spring, juvenile salmon known as smolts leave this central B.C. lake and migrate downstream through the Chilko, Chilcotin, and Fraser rivers and into the Salish Sea.

Juvenile salmon sampled off the Northwest Coast in 2017 were especially small and scarce, suggesting that poor feeding conditions off the Columbia River Estuary may remain.

As part of his decision, Redden required dam operators to continue the practice of spilling water through the dams, though not through the power - generating turbines, to help juvenile salmon upriver bypass the dams and make it out to sea.

«If they can't find the lanternfish they ate in the Sea of Cortez, they may look at juvenile salmon, as well as herring, sardines and other species that salmon may eat.

«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.

Scientists at WSU and the National Oceanic and Atmospheric Administration Fisheries Service analyzed combinations of various pesticides to learn how they would affect juvenile salmon.

Using this version of the device, which has been dubbed the first - generation Sensor Fish, PNNL researchers measured the various forces juvenile salmon experience as they pass through dams.

On an adult fish this may be only a nuisance, but for small juvenile salmon (around the size of a finger), sea lice can be fatal.

Each year, billions of captive - bred juvenile salmon are released into rivers in North America, Asia and Europe to give a bump wild populations, but their survival is 10 to 20 times lower than that of wild salmon, notes the study.

It requires BOR to hold some water in reserve in the Klamath River system, to flush into the river in case of a disease outbreak among juvenile salmon.

The drought of 2001 stranded hundreds of thousands of juvenile salmon due to low flows in the Columbia River and kept them from traveling to the Pacific Ocean.

Also in 2015, individual salmon farms did not coordinate anti-louse treatments, with some farms delaying treatment until just prior to the time when juvenile salmon migrate past farms.

They are staple diet for juvenile salmon.

«We know that chalk streams are very productive and juvenile salmon in these rivers generally migrate to sea after just one year, whereas young salmon in other river types typically leave freshwater at 2 - 3 years.

«Salmon smolts find safety in numbers: Researchers implant electronic tags to track journey of juvenile salmon.»

In a followup study, Furey found that juvenile salmon were more likely to survive the perilous days in the Chilko River if they traveled with lots of other fish.

To follow the juvenile salmon, researchers implanted small electronic tags into the tiny 12 - centimetre fish as they were leaving Chilko Lake.

The authors estimate using findings in zooplankton that juvenile salmon in the Strait of Georgia may be ingesting two to seven microplastic particles per day, and returning adult salmon are ingesting up to 91 particles per day.

Using tags surgically implanted into thousands of juvenile salmon, UBC researchers have discovered that many fish die within the first few days of migration from their birthplace to the ocean.

Juvenile salmon that enter the ocean this year amid the gradually improving conditions will not return from the ocean to spawn in the Columbia and other rivers for another two years or more, so fishermen should not expect adult salmon numbers to improve much until then.

Humpback whales feed on hatchery - released juvenile salmon.

Juvenile salmon with acoustic tags tend to have lower survival rates than juvenile salmon with other types of tags.