West Coast Salmon Vulnerable to Climate Change, but Some Show Resilience to Shifting Environment
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Climate Disaster Looks Like Thousands of Boiled-Alive Mussels on a Beach in Vancouver
More than a billion marine animals died in the heatwave that swept across the Western U.S. and Canada last month. The climate crisis doesn’t exist in some hypothetical future — it’s already here.
www.eater.com
Low oxygen levels off Northwest coast raise fears of marine ‘dead zones’
Low oxygen levels in the ocean that wipe out crabs and bottom-dwelling fish have arrived early off the coast of Oregon and Washington this year.
www.opb.org
J-SCOPE : Forecasts
GLG
Well-Known Member
Salmon are getting cooked by climate change. Here's how they could be saved
Both Pacific and Atlantic salmon at risk from climate change impacts, but habitat tweaks could help
Jul 23, 2021A heat wave is expected to kill all juvenile chinook salmon in California's Sacramento River, wildlife officials say. Meanwhile, climate change and extreme heat waves are hitting Canada's salmon too, on both coasts.
So, how bad is it here, and what can be done to save our salmon? CBC News explains.
What's happening to salmon in California?
California's Department of Fish and Wildlife warned last week that among chinook salmon in the Sacramento River "it is possible that all in-river juveniles will not survive this season." That was due to a heat wave that pushed local temperatures above 37 C, combined with a drought that caused more water to be diverted to cities and farmers, making the river shallower and quick to heat up.Has that kind of thing happened further north?
There are some reports of it happening amid this year's record-breaking heat wave in B.C. The B.C. Wildlife Federation reports that the Okanagan River was more than 23 C this week, causing sockeye salmon to halt their migration."There's a good chance the run will be ... doomed by heat," said Jesse Zeman, director of the federation's fish and wildlife restoration program.
In 2016, warm temperatures were blamed for the lowest number of returning sockeye in B.C.'s Fraser River on record, and two years later, officials warned that the river was so warm that migrating sockeye salmon might die on their journey. In 2019, there were heat-related salmon die-offs blamed in Alaska and at a fish farm in Newfoundland.
But salmon deaths due to heat aren't necessarily sudden and noticeable. Many populations of both Pacific and Atlantic salmon have been in gradual decline for decades, and scientists say warmer temperatures and other aspects of climate change have played a role.
- Atlantic salmon in eastern Cape Breton could be added to list of species at risk
- New research suggests 70% decline in diversity of B.C. sockeye salmon stock in past century
How do warm temperatures harm or kill salmon?
Both Atlantic and Pacific salmon are cold-water fish, which means they tend to do best at temperatures in the mid-teens and struggle when it's over 20 C.More here
https://www.cbc.ca/news/science/salmon-climate-change-1.6114328
Why Are So Many Extreme Weather Disasters Happening At Once?
Why Are So Many Extreme Weather Disasters Happening At Once?
www.iflscience.com
Water-related hazards dominate disasters in the past 50 years
Water-related hazards dominate the list of disasters in terms of both the human and economic toll over the past 50 years, according to a comprehensive analysis by the World Meteorological Organization (WMO).
Massive “Dead Zone” Forming Off The Coast of Oregon & Washington
A marine ecologist at Oregon State University has been tracking oxygen levels in the ocean and predicted a huge dead zone off the coast of Oregon and Washington this year. So far, the reality has been worse than they predicted. KGW8 reports scientists have tracked similar dead zones in the past...
unofficialnetworks.com
Drought drying up rivers on Vancouver Island
Island rivers and streams are drying as drought conditions worsen, leaving residents and community members worried.
www.cheknews.ca
‘Record-shattering’ heat becoming much more likely, says climate study
More heatwaves even worse than those seen recently in north-west of America forecast in research
Video shows salmon injured by unlivable water temperatures after heatwave
A conservation group recorded the video after a heatwave in the Pacific north-west on a day when water temperatures breached 70F
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wildmanyeah
Crew Member
Drought drying up rivers on Vancouver Island
Island rivers and streams are drying as drought conditions worsen, leaving residents and community members worried.
‘Record-shattering’ heat becoming much more likely, says climate study
More heatwaves even worse than those seen recently in north-west of America forecast in researchwww.theguardian.com
I've posted the cowichan valley climate change report on here a number of times. IT has forcast for the next 50 years its not gonna get better.
Rising water temperatures in Alberta rivers, lakes threatens aquatic life | Globalnews.ca
Normally, Alberta's glacier lakes hold the kind of water that can trigger an instant breath in when you dip your toes.
globalnews.ca
Trawlers Are Pushing into the High Arctic | Hakai Magazine
With sea ice melting, fishing looks set to continue its expansion into previously inaccessible waters.
www.hakaimagazine.com
Extreme heat waves are putting lakes and rivers in hot water this summer
The growing frequency of climate extremes affected human health and caused wide-scale damages to the ecosystems that people depend upon, including agriculture, fisheries and freshwater.
theconversation.com
OldBlackDog
Well-Known Member
Invasive pink salmon populations increasing in native Atlantic salmon waters
Fisheries biologists have been wringing their hands for decades in cold-water regions of the Pacific Ocean due to the proliferation of farmed Atlantic salmon and the threats they pose to native fish and the health of inshore waters, both in North America off the coasts of the U.S. and Canada...
www.hatchmag.com
OldBlackDog
Well-Known Member
Russian Salmon: 100,000MT Harvested in 1 Week, Cold Storage Shortages, Russian Salmon Sourcing Strategy
--- Salmon fishing in Russia’s Far East has entered the active stage and (at the time of reporting) current harvest totals for Russian Pacific Salmon reached 200,000 metric tonnes which is 2.5 times more than the pace of 2020. For Chum Salmon specifically, with Alaska’s Chum harvest looking like the run has already peaked, the market is likely to see about the same amount of Chum Salmon out of Alaska as last year where 8.5 million Chum were harvested. As Pink, Chum, and Sockeye are the primary species harvested and produced by Russia, our recommendation is to contact Tradex Foods to develop a Russian Salmon sourcing strategy as there may be some unique and favorable opportunities here.
--- Salmon fishing in Russia’s Far East has entered the active stage and (at the time of reporting) current harvest totals for Russian Pacific Salmon reached 200,000 metric tonnes which is 2.5 times more than the pace of 2020. For Chum Salmon specifically, with Alaska’s Chum harvest looking like the run has already peaked, the market is likely to see about the same amount of Chum Salmon out of Alaska as last year where 8.5 million Chum were harvested. As Pink, Chum, and Sockeye are the primary species harvested and produced by Russia, our recommendation is to contact Tradex Foods to develop a Russian Salmon sourcing strategy as there may be some unique and favorable opportunities here.
Climate crisis: Scientists spot warning signs of Gulf Stream collapse
A shutdown would have devastating global impacts and must not be allowed to happen, researchers say
wildmanyeah
Crew Member
Climate crisis: Scientists spot warning signs of Gulf Stream collapse
A shutdown would have devastating global impacts and must not be allowed to happen, researchers say
scary stuff, but from what i understand of climate science is that even if we went to a complete carbon natural state (something thats not gonna happen) that the cake is already baked for the next 50 years. IE weather ect is going to change based on what's in the atmosphere now. The heating will continue and the changes will continue.
OldBlackDog
Well-Known Member
computer estimates and we know how great they are!
OldBlackDog
Well-Known Member
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