Blueback closure latest in Quinault climate change impacts – North Coast News

And as if to put a fine point on the previous article, commercial fishing is being closed on the Quinault River for sockeye.  If I’m not mistaken, while the Quinault is not dammed, it has been greatly affected by widespread logging of the hills all around it. A look at the satellite images of the river from Google Earth https://earth.app.goo.gl/uDneeP shows that between currently logged areas and second and third growth areas the habitat for salmon has been seriously compromised over the last 100 years. The buffers along the river, likely clear cut long ago, have been allowed to grow back and gain some modicum of protection for the river, but appear to be very small, compared the vast logging operations allowed all around it. Take a look and explore the overview of the area. Likely the increased temperatures from global warming, overharvest at sea, sea water warming and the increasing upflows of cold water known as the “Blob” have all added to the problems.  Have a different opinion on what’s causing all this? Feel free to add them to the comments below. I don’t claim to know it all, just cursory looks and 40 years seeing the endless logging of the west end proceed with virtually no stopping nor real effort to protect the watersheds which are the habitat of the salmon that spawn there.

The decision to close commercial fishing for Quinault River blueback (sockeye) salmon for conservation purposes this year is part of the ongoing effort by the Quinault Indian Nation to deal with the very tangible costs of climate change. After announcing the blueback closure on the river last week for 2019, Quinault President Fawn Sharp traveled to Washington, D.C. with a message for Congress about how the entire Quinault ecosystem from the glacier to the ocean is being harmed by climate conditions that have major impacts, economically as well as environmentally. Angelo Bruscas reports. (North Coast News)

Blueback closure latest in Quinault climate change impacts

BC Led international expedition to probe ailing Pacific Salmon stocks- Vancouver Sun

Finally we are seeing some joint scientific effort around wild salmon. Time is certainly running out to take dramatic steps to save what is left of the salmon runs. Glad to see this happening now, no matter how late in the day it seems.

An unprecedented international collaboration could revolutionize salmon science and fisheries management, return forecasting and even hatchery output. Nineteen scientists from Russia, Canada, the United States, Japan and South Korea are set to probe the secret lives of five Pacific salmon species with a four-week grid search and test fishery across the Gulf of Alaska. The expedition begins next week aboard the Russian research ship MV Professor Kaganovsky. “We know virtually nothing about what happens to salmon once they leave near-shore waters in the Salish Sea,” said expedition organizer Dick Beamish. The project was developed as a research element of the 2019 International Year of the Salmon celebration, organized by the North Pacific Anadromous Fish Commission and its partners. Randy Shore reports. (Vancouver Sun)

BC-led international expedition to probe ailing Pacific salmon stocks

State discusses killing seals and sea lions in Puget Sound

Perhaps the most controversial idea out of the Orca task force has been the notion of killing sea lions and seals to help salmon survive. Like many ideas, this one is simplistic and has the greatest appeal to people who don’t want to spend much time thinking about whether something works or just makes you feel like you are doing something. Fish and Wildlife are holding meetings to gather information on whether or not this really is an idea with merit. Biologists who study the food chain aren’t so sure. If you think you already know the answer, then you should read this article. “There is no guarantee of a response by the salmon in terms of returning adults.” And you know what an assumption is, it’s a word made up of and makes an “ass of u and me”. Let’s put the science of this in it’s rightful place, which is at the head of the train and not tow it along in our ill informed wake.

State wildlife commissioners heard testimony Friday about whether a seal and sea lion cull could help save salmon, and thereby restore food to the starving Southern Resident killer whales (SRKW)…. “It’s important to set the stage that this occurs in a very complex ecosystem and it is a very complex food web,” said WDFW Research Scientist Scott Pearson…. “If you want a 25 percent reduction in the total juvenile Chinook consumption by seals, we have to reduce this number of 19,000 seals down to 14,300. If you subtract this number from this number, that’s how many we have to remove 4,700 seals, and we have to annually remove 530 seals per year to keep it at that level,” Pearson said. But the problem is, salmon also face a slew of other challenges, including hydropower, hatcheries, habitat, disease, and contaminants. Scientists told commissioners they don’t know whether killing seals and sea lions will do anything at all…. “In my opinion, even if the seal consumption were somehow reduced or eliminated, there is no guarantee of a response by the salmon in terms of returning adults,” said WDFW Research Scientist Joe Anderson. Alison Morrow reports. (KING) See also: Puget Sound resident orcas limited by social behavior  Alison Morrow reports. (KING)

State discusses killing seals and sea lions in Puget Sound 

Congress OKs bill to allow killing sea lions to help salmon – Seattle Times

The knee jerk reaction to killing sea lions to theoretically ease the amount of endangered salmon that are being eaten by them passed Congress two days ago. While not based in science, this has been done at the behest of a variety of groups that see the sea lions as the problem. White sports fishermen, some tribes. The likelihood of this succeeding in any meaningful way has not been proven. But killing something always seems like a good solution to many.

https://www.seattletimes.com/nation-world/congress-oks-bill-to-allow-killing-sea-lions-to-help-salmon/?utm_source=RSS&utm_medium=Referral&utm_campaign=RSS_nation-world

 

 

West’s rivers are hot enough to cook salmon to death. Will this court ruling keep them cool? – Bellingham Herald

With global warming comes the heating of our rivers. That has devastating impacts on salmon, which need a river to remain under 56 degrees or young salmon will die. This might bring a change of heart to the issue of Snake River dam removal or breaching.

A federal judge in Seattle has directed the Environmental Protection Agency, in a ruling with implications for California and the Pacific Northwest, to find a way to keep river waters cool.

Read more here: https://www.bellinghamherald.com/news/state/washington/article220466120.html#storylink=cpy

 

New Genetic Research Shows the Legacy of Fish Farm – Hakai Magazine

The fish farming industry has been saying for the last number of years that this couldn’t happen. Well, it apparently has. While this could not happen here because of the distinct species, it does add fuel to the fire that these farmed fish are just not a good idea. We have no idea what additional information the industry, along with certain departments in WDFW and NOAA who seem to be simply mouthpieces for the industry, are not investigating, or actually hiding from the public.

Newfoundland’s great fish jailbreak took place on September 18, 2013, when a damaged sea pen, roiled by currents and tides, discharged 20,000 farmed Atlantic salmon into the frigid freedom of Hermitage Bay. Cooke Aquaculture, which owned the failed pen, swiftly set about controlling the damage in the media, if not the ocean. Seals and other predators would scarf up the rogue salmon, the company assured the CBC. The fish, it added, “pose[d] no threat to the environment.” A new genetic analysis, however, refutes that dubious claim. Researchers with Fisheries and Oceans Canada (DFO) have shown that the fish fled Hermitage Bay, fanning out and infiltrating many of southern Newfoundland’s rivers. There, the escapees interbred with their wild cousins—potentially weakening the gene pools of imperiled populations. Ben Goldfarb reports. (Hakai Magazine)

New Genetic Research Shows the Legacy of Fish Farm

 

 

 

In WSU Stormwater Runoff Research, Coho Salmon Die Quickly,Chum Survive

More data that shows how complicated the salmon recovery effort is.

On April 20, 2018, the Columbia Basin Fish and Wildlife News Bulletin reported that Washington State University (WSU) scientists discovered that different species of salmon have varying reactions to polluted stormwater runoff.

In a recent paper published in the journal Environmental Pollution, scientists found that coho salmon became mortally ill within just a few hours of exposure to polluted stormwater. But chum salmon showed no signs of ill- effects after prolonged exposure to the same water.

The study can be found at

https://www.sciencedirect.com/science/article/pii/S026974911734527X?via%3Dihub

“It really surprised us,” said Jen McIntyre, an assistant professor in WSU’s School of the Environment. “Not that the coho were affected so quickly, but how resistant the chum were. We saw no impact at all in the chum’s post-exposure blood work.”

Stormwater is toxic to fish because it can include carcinogenic hydrocarbons, metals, and other organic compounds, most of which have yet to be identified.

McIntyre and her team collected stormwater runoff in large tanks from a highway in western Washington. Then they placed salmon in that water for four hours or until the fish showed signs of illness. Blood samples were then taken from all of the fish.

Only a few coho lasted four hours before having to be removed. In blood tests, the team found a significant increase in lactic acid concentrations and their blood was much thicker. Their blood pH was thrown off and the amount of salt in their plasma decreased significantly.

The chum test results showed none of those changes, all these fish lasting the full four hours without showing any signs of distress or sickness.

 

“These fish are very closely related,” said McIntyre, who works at WSU’s Puyallup Research and Extension Center. “They’re the same genus, but obviously something is significantly different physiologically. We just don’t know what that difference is yet.”

The study was done at the Suquamish Tribe Grovers Creek Salmon Hatchery, with fish donated by the Suquamish Tribe.

McIntyre worked on the project with fellow WSU scientists, along with colleagues from the National Oceanic and Atmospheric Administration (NOAA) National Marine Fisheries Service and the U.S. Fish and Wildlife Service.

McIntyre and her team noticed a few clues for where to start their next round of investigations: studying what makes the chum nearly impervious to toxic runoff. One is that the coho appeared hypoxic, meaning they weren’t getting enough oxygen. But the water had plenty of oxygen, so they’ll look at blood circulation issues, how the fish metabolize oxygen in their muscles, and a few other areas.

“We don’t know if the thicker blood is a symptom of the problem, or if that’s the initiating event that then causes the oxygen deprivation,” McIntyre said. “There’s a lot of work still to come, but this really narrows down where we need to look.”

They’re also hoping that looking further into chum will turn up clues about how they resist the effects of toxic runoff.

In a later study, not included in this paper, McIntyre and her team conducted a prolonged exposure test on chum. Those fish swam in the stormwater runoff for four days and none of them got sick.

“We’re still trying to understand how they’re unaffected,” she said. “It’s actually really impressive.”

Another problem for the coho is that scientists don’t know what particular contaminants in the runoff are causing the problems.

“There’s a whole variety of heavy metals and hydrocarbons in that water,” McIntyre said. “And a whole bunch of chemicals we are working with scientists at the University of Washington in Tacoma to identify so that we can protect more delicate species like coho salmon from the effects of human pollution.”

McIntyre’s research is part of a grant from EPA.

For more information, Jen McIntyre can be reached at jen.mcintyre@wsu.edu.

Source:    http://www.cbbulletin.com/440562.aspx

 

 

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