How can a parasite be fatal to the Yucon River Chinook salmon? American biologists are trying to find this
American biologists are studying how deadly parasites can be suffering from the Yucon River Chinook salmon, with expectation that one day research is included in decision making on both sides of the border.
With Alaska Department of Fish and Game, Zachri Liller told CBC News that there is no method for natural mortality that is associated with the disease, especially ichthiophone, which can prove fatal, in the right conditions, it can prove fatal due to distances. Imperial Chinook Should travel to reach your sponing area.
“No one is monitoring annually for the disease and, and certainly no one is explaining those diseases metrics,” Liller said.
All that information will be rounded and punched in a statistical equipment, which will allow scientists to samp the population in future years and formally estimate the number of chinooks that die from diseases such as IchthiPhoneus.
Liller said, “This is not currently in our stock evaluation programs and hence it is not currently in the framework of any fisheries management decision making framework. Keep the crop closed.
“If we are successful with it, it will be … fundamentally and always change the face of our evaluation program on Yucon (River).”
In the last several months, biologists in Seattle-sector laboratories are feeding the flesh of fish with parasites, or feeding them to vaccinate. Then, they wait for any signal of infection, monitor and wait something else.
In a process some researchers can be intensified in suspicious warm water, the parasite like a fungus first targets the heart, then blooms in the muscles, which affects movement. After all, it can cause death.
One of the parasites can be The biggest problems behind the Chinuk dying route In their sponing ground, Some swimming to reach areas above the Whitehors Dam at a distance of about 3,200 kilometers from the Bering Sea.
But to what extent Ichthiophone is destroying the fish, an open question remains. The same team is a partnership between Alaska Department of Fish and Game, US Geological Survey and Alaska Pacific University, trying to get a clear picture with the ability to expand that work over the years.
What does research look like
Under the special permit, the biologist has removed four wild chinooks – two men, two women – from a tributary of the Yucon River. Then, Liller said that about 2,500 teenagers were sent to laboratories, where they were separated in about four separate tanks, which were set with different water temperatures – mainly freshwater – to see if the parasitic flourishes in a fish found in warm water, a symptom of climate change, which is particularly intense in the north.
Scientists planned to continue experimentation through September, but they hit a road. Now things can be pushed back, Paul Harshberger said, who is the head of Fish Health Section at the Fisheries Research Center of the US Geological Survey in Seattle.
He said, “We did not have as much fish infected as we would like to study our temperature.” “We were still expecting to start looking at the impermanence.”
Harshberger stated that Yucon Energy, which operates the Whitehors hatchery, has sent the old fish used for breeding in Seattle, and the biologist is about to collect pollk infected with Ichthiophone on the Bering Sea.
“We should do another exposure to achieve the prevalence of too much infection in these practical fishes,” Hersberger said.
“From a practical point of view, this research, I think, is actually important to inform how much to take – how much crop can be.”