Posted on 05/08/2018 6:09:03 AM PDT by Oldeconomybuyer
Salmon and trout anglers across the Pacific Northwest are going to have fewer places to fish over the next 40 years, concludes a new study published this month.
Scientists at the Forest Service's Rocky Mountain Research Station in Boise found that in the summer and early fall, rivers in the Pacific Northwest have already warmed 1.8 degrees Fahrenheit since 1976. That's the same rise measured at the Bonneville Dam over the last 80 years and used in models by climate scientists.
The researchers studied 391 monitoring sites. The temperature pattern gives them confidence the warming trend is going to continue for the next 40 years, said Dan Isaak, the lead researcher. That means salmon and trout are going to have less habitat, and will be replaced by warm-water fish like smallmouth bass.
The study - "Global warming of salmon and trout in the northwestern U.S.: Road to ruin or path through purgatory?" - was done after the 2015 season, when warm temperatures in the Columbia, Snake and Salmon rivers killed off nearly all of the sockeye salmon returning to Idaho's Sawtooth Valley.
Despite the warming, which has been hastened by human behavior, the scientists don't predict habitat loss by itself will send any of the fish species into extinction over the next 40 years.
"It's in the latter half of the century that we have more uncertainty," Isaak said.
The models show the warming trend slowing when the rise in greenhouse gases stops or is reversed. But the science is not as clear about when that will happen, or that it will affect the climate, Isaak said.
(Excerpt) Read more at idahostatesman.com ...
But weather measuring instruments were much more accurate in the 13th century.
We’re doomed again!
'Chinook, or king, salmon (Oncorhynchus tshawytscha) arrive in two waves, in spring and fall, to spawn in freshwater. But the Karuk hold the spring arrivals in special esteem, Hillman says. The fish leave saltwater in March, having packed enough fat onto their meter-long bodies to sustain them for months, until they mature and spawn far up the river. Fall Chinook spawn lower down in the watershed and mature in the ocean before heading upstream, so they dont carry as much fat.
The spring runs were historically larger, but dams built on the Klamath between 1912 and 1964 denied these so-called springers access to hundreds of kilometers of spawning habitat in the uppermost tributaries. And other changes, such as water diversions for farming, have affected the spring Chinook more than the fall fish, because springers spend more time in the river. As a result, fewer and fewer spring salmon answer Hillmans appeal these days.
In 2011, conservationists petitioned federal officials to protect the Klamaths spring Chinook runs under the Endangered Species Act of 1973 (ESA). The listing was justified, they argued, under an ESA provision that allows the government to protect a distinct population segment of vertebrate as though it were a full-fledged species. But officials at the National Oceanic and Atmospheric Administration (NOAA), which oversees salmon and other anadromous fish that spend part of their lives in the ocean, denied the petition. One reason: Researchers had concluded that the Klamaths spring-run Chinook are genetically similar to fall-run Chinook.
New research findings, however, are forcing scientists and federal officials to revisit that decision. In 2017, researchers announced that theyd identified a single gene that appears to control whether Chinook salmon, as well as steelhead, a closely related species of rainbow trout, migrate upriver before or after reaching sexual maturity. They concluded that the genetic change that produced spring-run Chinook occurred only once in the speciess history. And new data published on 29 April on bioRxiv show that in rivers where spring runs disappeared decades ago, less than 1% of the remaining fish carry a copy of the early migration version of the gene. The scarcity of that gene makes it very unlikely a spring run will reappear once lost.'
The walleye season on Minnesota lakes opens in mid-May. It is not unusual at all for there to be ice still on lakes at that date. In some years, some lakes can’t be fished because of too much ice.
The 1950 opener of Minnesota walleye season is a legend. The major large resort lakes in northern Minnesota were all unfishable due to ice.
(River walleye fishing in Minnesota is a secret bonanza!)
Seems like the pattern for global warming propagandist scientists is to pick something that a lot of global warming deniers like, and make a panic inducing prediction about its imminent demise.
I believe, not that it matters one way or another what I believe; that we are already many years in to the anniversary of a repetitive event which about 1500 B.C. triggered the explosion of Thera, located within the Archipelago of Santorini and at the same time rearranged the Mediterranean landscape permanently. Indirectly and in a roundabout way, turning days in to night for some time, providing the final straw for convincing the Egyptian ruler at the time Thutmose III that it would be a good idea to release the Israelites. This event became know s the EXODUS.
Going back in history using the same time span or multiples thereof (1500 + 2018 = 3518 approx. ) we arrive at another historic event, which was predictable yet unavoidable and once again it entered the annals of history as the DELUGE. In other words these events seem to have a common denominator and once again it seems we are running into it and are probably already one third into it causing all kinds of strange weather patterns along with so called Global warming etc. but the finale is yet to come.
I have a feeling that the Vatican may be thinking along similar lines and in order to get ahead of the proverbial curve, a while back built a fairly sophisticated observatory on Mount Graham in Arizona. Actually about 25 years ago when I found out about this project it made me wonder as to what are they really looking for? And much to my surprise, many interesting things turned up. To anyone who never has looked into this subject, given it much thought or let religious believes get in their way, all this may sound like some crackpot idea. But whatever has been taking place so far in regards unusual weather patterns, more frequent earthquakes and volcanic eruptions seem to be backing this reoccurring event. All I can say is, that I wish to be dead wrong as some of these events may turn out to be quite destructive
Tell ya what, when you can start telling us ACCURATELY what the weather will be next week, I may start believing you. For now, bite me!
——what are they really looking for?-—
At the time of construction they were looking to determine if Galileo was really correct about the moons of Jupiter.
They learned he was and then apologized
Exactly. Jump into just about ANY river....or creek-fed or river-fed lakes...in Western Washington, and you’ll freeze your tuchus off!
Paul Bunyan cut down all the trees in the Sahara and you know what happened after that...!
Yup, no more trout streams in the Sahara.
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