California salmon lose way after ride downstream in drought
 

On 12/27/17 12:32 PM, BurfordTJustice wrote:
Like trader you are not credible...

Getting a lift on their migration saved countless salmon, but
disoriented them.

"Everybody kind of acknowledged and understood at the time the
consequences," McManus said.

Since the 2014 class of salmon didn't learn the route by swimming it
on their own power, many have gone astray as they head back upstream
now.

salmon don't learn routes...they follow the "scent" of where they were
released. as for those that go astray, that's evolution in action



Biologists say only a small fraction of those made it back to what
would be their usual point of return, at the Coleman hatchery. Salmon
managers are tracking now how many of the strayed salmon wound up in
other watersheds


just exactly how are they tracking these "strayed" salmon and where can
I get a report on their numbers


"ZZyXX" wrote in message
... : On 12/27/17 4:30 AM,
BurfordTJustice wrote: : You can't fool Mother Nature. : :
California salmon lose way after ride downstream in drought : : A
desperate decision to truck California's native baby salmon toward
the : Pacific Ocean during the state's drought may have resulted in
generations of : lost young salmon now hard-pressed to find their
way back to their : reproductive grounds. : : With fewer native
fall-run Chinook salmon able to make their way back home : to the
leading salmon hatchery in the state, that hatchery could have only :
about half as many young salmon as usual to release next spring,
the : Sacramento Bee reported Tuesday. : : For those involved
in safeguarding California's struggling native salmon, it : had
always been understood that resorting to tanker trucks to carry tiny
: salmon to the ocean during the drought was a trade-off, John
McManus, : executive director of the fishing industry's Golden
State Salmon : Association, told the Bee. Getting a lift on their
migration saved countless : salmon, but disoriented them. : :
"Everybody kind of acknowledged and understood at the time the :
consequences," McManus said. : : Native salmon historically
anchored food chains and habitats on both land : and in the water
in California. Salmon still boost the state's economy by : $1.4
billion annually, the salmon industry says. : : Dams that cut
native salmon off from their former upstream spawning grounds, :
and general human demands on water, have helped cut salmon numbers :
drastically in the state, making state and federal hatcheries
crucial for : the fish. : : California's drought, declared over
just last spring, included some of the : driest spells ever
recorded in the state. In 2014 and 2015, hatchery : managers
resorted to sucking baby salmon into tanker trucks for their :
280-mile migration toward the ocean, biologists say. Chinook salmon
spend : two or three years in the ocean before heading back
upstream to reproduce. : : Since the 2014 class of salmon didn't
learn the route by swimming it on : their own power, many have gone
astray as they head back upstream now. : : salmon don't track by
remembering the route, they track by differences : in the "smell" of
the water : : : Biologists say only a small fraction of those
made it back to what would be : their usual point of return, at the
Coleman hatchery. Salmon managers are : tracking now how many of
the strayed salmon wound up in other watersheds : : : and illegal
overfishing by republicans has nothing to do with this? : :