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Salmon
2008
Chinook Salmon Vanish Without a Trace Where did they go?
The Chinook salmon that swim upstream to spawn in the fall, the most
robust run in the Sacramento River, have disappeared. The almost
complete collapse of the richest and most dependable source of Chinook
salmon south of Alaska left gloomy fisheries experts struggling for
reliable explanations — and coming up dry.
Whatever the cause, there was widespread agreement among those attending
a five-day meeting of the Pacific Fisheries Management Council here last
week that the regional $150 million fishery, which usually opens for the
four-month season on May 1, is almost certain to remain closed this year
from northern Oregon to the Mexican border. A final decision on salmon
fishing in the area is expected next month.
As a result, Chinook, or king salmon, the most prized species of Pacific
wild salmon, will be hard to come by until the Alaskan season opens in
July. Even then, wild Chinook are likely to be very expensive in markets
and restaurants nationwide.
Meet The Fish
Fall Chinook Salmon
 

Late Fall Chinook Salmon
Steelhead trout

Fish in raceways

“It’s unprecedented that this fishery is in this kind of shape,” said
Donald McIsaac, executive director of the council, which is organized
under the auspices of the Commerce Department.
Trophy Mounts completes the largest brook trout ever
landed
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Fishermen think the Sacramento River was mismanaged in 2005, when this
year’s fish first migrated downriver. Perhaps, they say, federal and
state water managers drained too much water or drained at the wrong time
to serve the state’s powerful agricultural interests and cities in arid
Southern California. The fishermen think the fish were left susceptible
to disease, or to predators, or to being sucked into diversion pumps and
left to die in irrigation canals.
But federal and state fishery managers and biologists point to the
highly unusual ocean conditions in 2005, which may have left the
fingerling salmon with little or none of the rich nourishment provided
by the normal upwelling currents near the shore.

The life cycle of these fall run Chinook salmon takes them from their
birth and early weeks in cold river waters through a downstream
migration that deposits them in the San Francisco Bay when they are a
few inches long, and then as their bodies adapt to saltwater through a
migration out into the ocean, where they live until they return to
spawn, usually three years later.
One species of Sacramento salmon, the winter run Chinook, is protected
under the Endangered Species Act. But their meager numbers have held
steady and appear to be unaffected by whatever ails the fall Chinook.
Stillaguamish Tribal Hatchery

Record chum run 2003.
The Stillaguamish Tribe has voluntary chosen to not fish for Chinook
salmon since 1980.
In 1978 Stillaguamish Tribal Hatchery opened operations as a restoration
facility for the Chinook and Coho salmon to rebuild diminished runs. At
present, the Chinook salmon is listed on the endangered species list in
the Stillaguamish watershed due to degradation of habitat and
over-fishing. We work hard in our efforts to change the course of the
decreasing population, so that a strong and thriving population can
exist again in the Stillaguamish River.
So what happened? As Dave Bitts, a fisherman based in Eureka in Northern
California, sees it, the variables are simple. “To survive, there are
two things a salmon needs,” he said. “To eat. And not to be eaten.”
Fragmentary evidence about salmon mortality in the Sacramento River in
recent years, as well as more robust but still inconclusive data about
ocean conditions in 2005, indicates that the fall Chinook smolts, or
baby fish, of 2005 may have lost out on both counts. But biologists,
fishermen and fishery managers all emphasize that no one yet knows
anything for sure.
Bill Petersen, an oceanographer with the National Oceanic and
Atmospheric Administration’s research center in Newport, Ore., said
other stocks of anadromous Pacific fish — those that migrate from
freshwater to saltwater and back — had been anemic this year, leading
him to suspect ocean changes.
After studying changes in the once-predictable pattern of the Northern
Pacific climate, Mr. Petersen found that in 2005 the currents that rise
from the deeper ocean, bringing with them nutrients like phytoplankton
and krill, were out of sync. “Upwelling usually starts in April and goes
until September,” he said. “In 2005, it didn’t start until July.”
Mr. Petersen’s hypothesis about the salmon is that “the fish that went
to sea in 2005 died a few weeks after getting to the ocean” because
there was nothing to eat. A couple of years earlier, when the oceans
were in a cold-weather cycle, the opposite happened — the upwelling was
very rich. The smolts of that year were later part of the largest run of
fall Chinook ever recorded.
But, Mr. Petersen added, many factors may have contributed to the loss
of this season’s fish.

Bruce MacFarlane, another NOAA researcher who is based in Santa Cruz,
has started a three-year experiment tagging young salmon — though not
from the fall Chinook run — to determine how many of those released from
the large Coleman hatchery, 335 miles from the Sacramento River’s mouth,
make it to the Golden Gate Bridge. According to the first year’s data,
only 4 of 200 reached the bridge.
Mr. MacFarlane said it was possible that a diversion dam on the upper
part of the river, around Redding and Red Bluff, created calm and deep
waters that are “a haven for predators,” particularly the pike minnow.
Farther downstream, he said, young salmon may fall prey to striped bass.
There are also tens of thousands of pipes, large and small, attached to
pumping stations that divert water.
Jeff McCracken, a spokesman for the federal Bureau of Reclamation, which
is among the major managers of water in the Sacramento River delta, said
that in the last 18 years, significant precautions have been taken to
keep fish from being taken out of the river through the pipes.
“We’ve got 90 percent of those diversions now screened,” Mr. McCracken
said. He added that two upstream dams had been removed and that the
removal of others was planned. At the diversion dam in Red Bluff, he
said, “we’ve opened the gates eight months a year to allow unimpeded
fish passage.”
Bureau of Reclamation records show that annual diversions of water in
2005 were about 8 percent above the 12-year average, while diversions in
June, the month the young Chinook smolts would have headed downriver,
were roughly on par with what they had been in the mid-1990s.
Peter Dygert, a NOAA representative on the fisheries council, said, “My
opinion is that we won’t have a definitive answer that clearly indicates
this or that is the cause of the decline.”
Salmon
Fishing British Columbia Canada for Chinook Salmon, also known as
King Salmon or Spring salmon and the largest of the 5 Pacific Ocean
salmon, are known for their outstanding strength and stamina, as
well as their terrific table qualities!!
There are two major Salmon fishing runs of Chinook that are
targeted; the Fraser River summer run which fans out into the major
interior tributaries, and the fall run Harrison River Chinook
Salmon. The Harrison river is a large tributary to the Fraser river
with its confluence near Chilliwack British Columbia. Fishing Salmon
on the Fraser river Chinook Salmon are commonly caught from May
through early September, will range in size from10 to 40 pounds and
are in mint condition being only a few days from the ocean. They are
commonly caught by bar-fishing using heavier gear and a spin-n-glo,
or by float fishing with a variety of baits.
Salmon fishing the Harrison river for a fall run of a white flesh
variety of Tyee salmon is very productive and are generally larger
and can reach weights of 60 pounds or more! These Chinook Salmon are
also caught by bar-fishing during October. The limit for Chinook
salmon fishing is one adult fish per day, a possession limit of two.

Coho
Salmon

A smaller salmon ranging in size from 4 to 12 pounds, Coho Salmon
are a favorite fish by all anglers on the Fraser. Also known as
silver Salmon, fishing for Coho generally occurs from September
through November using bar fishing, spin fishing, float fishing, and
fly fishing techniques. Many of the area's tributaries have Coho
returns, however, we choose to concentrate our efforts on the Fraser
mainstem and the Harrison river.
The limit for Coho vary from two to four HATCHERY (adipose
fin-clipped) fish per day, double that for possession.
Sockeye
Salmon
Thank goodness these fish average only 5 - 6 pounds or we'd never
land them. The action when the sockeye salmon are in, is
incredibly exciting. Salmon fishing in British Columbia for these
silvery speedsters that arrive in June and migrate up the Fraser in
huge numbers right through mid-September. Sockeye are best caught
bottom bouncing with light salmon gear. These fish provide a
unique angling opportunity for all anglers whether a beginner or a
pro. They can also be caught with fly fishing tackle. This fishery
is regulated by Fisheries and Oceans Canada, and can be opened or
closed on short notice. The sockeye salmon fishery is typically open
on August 1st, and can remain open for the entire month. The limit
for sockeye is two fish per day, four in your possession. These fish
are highly sought after for their excellent table qualities.
Chum
Salmon
Ranging in size from 8 to 20 pounds, the tenacious chum salmon, or
dog salmon as they are commonly called, are the "water buffaloes" of
the river. The chum will color up when it enters the freshwater in
mid to late September, but that does not deter it from attacking
anything in its path! A very strong salmon, most anglers will agree
that the chum is hard on tackle and provides a worthy challenge when
taken on drift, spinning and fly tackle. The chum is easily
identified by the purplish vertical bars on its sides and, on the
bucks, by rather large teeth, hence the nickname dog salmon.
Occurring in good numbers, chum can be found almost anywhere in the
lower Fraser and its tributaries. The limit for chum salmon is two
fish per day, four in your possession. Salmon Fishing in British
Columbia is exciting

Pink
Salmon

Pink salmon are found in the lower Fraser and its tributaries on odd
numbered years (2005,2007,etc.). Commonly called humpies because the
males develop a conspicuous hump on their backs, pink salmon can be
taken on every type of tackle and will bite readily. late August
and continue into mid-October 2005. The limit for pink salmon is
four fish per day, eight in your possession. Come on Salmon Fishing
in British Columbia. This makes fishing for pinks fun for everyone
including the younger anglers. The next run will begin in
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Full Day
Trips
$150.00 Per Person
(25%
Deposit Per Person)
Gift
Certificates Available
All
Equipment, Bait & Tackle Provided
Coast
Guard Master License & Insured
Call
Early To Book Best Dates
As a qualified Fishing Guide can assure that you catch more
fish! Guide Service Northwest fishes from Astoria Oregon all the
way up the Columbia River to catch:
-
Salmon, Coho
Salmon, Chinook Salmon, Fall Chinook
-
Trophy Sturgeon
and Keeper Sturgeon
-
Winter run
Steelhead and Summer run Steelhead
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WHAT TO BRING
Oversize sturgeon fishing guides know where to
find Sturgeon on the Columbia River. Guide Service Northwest
Specializes in Salmon, Sturgeon and Steelhead fishing in the
Northwest. Oregon fishing is great with Oregon fishing guides. A
Columbia river fishing guide, can catch keeper sturgeon or
trophy sturgeon. Oregon salmon fishing is best on the Columbia
River all the way to Astoria.
WHAT
TO BRING ON YOUR FISHING TRIP
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SALMON FISHING IN BRITISH COLUMBIA
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The fishing season starts in June with the run of
mighty Spring salmon, and lasts until early August.
Depending on the water conditions, we fish the
Skeena and/or Kitimat River. The Spring or “Chinook
Salmon”, are the biggest of the pacific salmon and
fish of 50 to 60 pounds are not uncommon.
Heavy tackle is necessary for these big fish. The
most common gear is spin-o-glow and 6 to 10 ounces
of weight. In the middle of July sockeye salmon will
begin to make their appearance in the Skeena River.
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Sockeye are much
smaller then the Springs, but they make up for it by their
explosive fight. Sockeye are considered by many to be the
best eating fish. Nothing beats the fly when it comes to
Sockeye fishing, but they can also be caught with small
spin-o-glows bounced along the river bed.
Next in line is the Coho salmon,
which starts in September. The Coho can reach up to 25
pounds, but most are between 8 and 15 pounds. Somewhat
more aggressive then the Spring, they will chase down
spoons and flies.
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Last but not least, if one is
lucky, you might hook into a Steelhead. Imagine
catching a rainbow trout with proportions and the
weight of a salmon!!!
Steelhead will start in late
August and be numerous in September. Essentially
they are big ocean-going rainbow trout and as such
can be caught on almost anything. Their size ranges
from 10 all the way to 30+ pounds.
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Yukon River Chinook Salmon

sockeye
Chinook Salmon Coho Salmon Chum Salmon Pink Salmon
The mighty Fraser River and its tributaries get some of the largest
sockeye salmon runs in the world. This is also one of our world-class
fisheries , with runs quite often surpassing 10+ million fish. The
Sockeye Salmon are highly prized for their mouth watering, delicious and
dark orange meat. They are a hard fighting fish, displaying great aerial
acrobatics, and super fast, line peeling runs. They average 5-8lbs, with
bigger fish over 10lbs available. Every year, anglers patiently await
the arrival of the Sockeye Salmon, as it provides fast, action packed
fishing that is hard to beat! It is not uncommon to hook between 15-25+
salmon/person/day.
This fishery is controlled by our fisheries department, with a very
regulated fish-retention season that usually opens in the first week of
Aug and can last into the first week of Sept. However, sockeye retention
closures can occur at any time, so please make sure to check with us for
updated information. This is primarily a Fraser River fishery with
bottom bouncing being the common fishing method for catching these fish
in really fast water. We also fish several other smaller tributaries
that offer great fly-fishing opportunities for these salmon.
salmon/person/day.
Sockeye Salmon are present in our rivers from June-Oct, with the best
fishing times being mid July-late Sept They arrive in our rivers as
lean, silver fish, fresh from the ocean and in prime fighting and eating
condition. As spawning time approaches, they turn to a beautiful and
vibrant dark red colour that makes them very visible in the clear
rivers.
Wildlife Indicator - Chinook Salmon
No creature, beside humans, penetrates
the Pacific Northwest as thoroughly as salmon. The wildlife index tracks
Chinook salmon returning as adults to the Bonneville Dam, the lowest dam
on the Columbia River.
 No
creature, beside humans, penetrates the Pacific Northwest as
thoroughly as salmon. The wildlife index tracks Chinook salmon
returning as adults to the Bonneville Dam, the lowest dam on the
Columbia River. These mighty fish are a good indicator for the
Northwest's once-prolific salmon runs and for the health of the vast
river system that binds British Columbia, Washington, Oregon, and
Idaho.
Geographic range: Salmon are located throughout
Cascadia. The Columbia Chinook are the largest and most prolific
salmon in the region's biggest and most extensive river system.
What salmon tell us: Because of salmon's ubiquity,
they are probably the best biological indicator of ecological health
in the Northwest.
Changes in their populations can indicate any number of a long list
of man-made and natural activities, including--to name a
few--hydroelectric dams, irrigation, cattle ranching, clearcutting,
suburban sprawl and development, industrial waste, global warming,
and stormwater management.
How they're doing: The Chinook salmon report
card is mixed.
- Yearly variation: First, it's difficult to
get an accurate measurements of long-term trends in salmon
population, because annual population counts can vary by huge
margins. Returning Chinook at the Bonneville Dam--the lowest dam
on the Columbia--vary by an average of 38 percent a year.
- Only a fraction of historical abundance:
Today on the Columbia, salmon return in only a fraction--perhaps
5 percent--of their historic abundance. And because most salmon
on the Columbia today are hatchery-raised fish, the true picture
of salmon is even less rosy. Wild Chinook may only now be 1
percent of their historic numbers.
What to do: Key reforms for protecting salmon
include reducing pollution runoff into the Columbia and its
tributaries; getting more accurate measurements of salmon health
through methods such as biomonitoring; and removing dams such as
those on the lower Snake River. Reducing reliance on hydropower, by
shifting to alternative energy sources and conservation, also frees
up more water for salmon to migrate past dams.
You can also volunteer for the many fine efforts to restore
Northwest salmon and their habitat

Juvenile Coho Salmon
Importance for conservation
The river supports significant runs of Pacific Salmon: Coho, Chinook,
Chum and Pink, as well as endangered Steelhead. Productive spawning and
rearing habitat exists along the main river and in the lower reaches of
the tributaries. Boundary Bay, of which Semiahmoo Bay and the Little
Campbell River estuary are a part, is the top-rated Important Bird Area
(IBA) in Canada. This bay is an important stopover point for migrating
birds on the Pacific Flyway up the west coast of North America. Mudflats
and eelgrass beds provide food for many shorebird species and rearing
habitat for juvenile salmon on outward migration. Great Blue Herons use
the estuary for feeding and a nesting colony is nearby. The river basin
also offers significant habitat for riparian-dependent species,
including the endangered Pacific Water Shrew.

Klamath River
KLAMATH
RIVER
The mighty Klamath River is California’s second largest river and
flows almost three hundred miles from Oregon to the mouth of the river
at Requa in Klamath; CA. Klamath is headquarters or world class salmon
and steelhead trout fishing and has often been referred to as the
“Steelhead Capitol of the World.” The fish are not the only attraction
though, located in the center of the Redwood National and State parks,
Klamath Ca. is the ideal place for a family vacation, it’s breathtaking
river adventures and miles of trails through old growth redwood forests
centuries old, abundant wildlife including bears, coyotes, whales, seals
and sea lions not to mention an array of birds including eagles, osprey,
heron, pelican and seagulls.
KLAMATH SPRINGER SALMON
We begin fishing the Klamath in May to mid July for springers. We
anchor on the edges of the river intercepting their natural traveling
lanes with spinners or rogue spinner bait rigs. When that springer hits
bait the fun begins, with the high spring flows and these football
shaped salmon the battle is on. When it is all said and done you have
the best tasting of all salmon. To many fishermen, barbecuing that first
springer is a tradition. We fish out of a custom built Jet craft boat
that is covered and heated for comfort, this trip includes a full
breakfast that is cooked to your request and consists of ham, sausage,
hash browns and eggs along with coffee served hot while you fish.
KLAMATH SUMMER STEELHEAD
We begin fishing for summer run steelhead in mid July when the half
pounders enter the river. The steelhead fishing has been outstanding the
last 2 years with steelhead to 15lbs being landed. We side drift or
boondoggle out of our jet sleds with small baits and drift balls on the
lower 30 miles of the river. It is not uncommon to land 20 to 30
steelhead per day.
KLAMATH
FALL RUN CHINOOK SALMON
The fall run of king salmon in the Klamath can run into the hundreds of
thousands. The salmon enter the river in late July where we troll for
them with spinners or rogue spinner bait rigs fishing the tides. In
August the salmon begin making their upstream migration, where we target
them in the deep holes and runs they hold in with our jet boats
boondoggling or dragging bait. The average fall salmon is about 15lbs.
with the larger fish in the 40lb class. There was a monster 68lb king
salmon caught at the mouth of the river in August of 2004 (by net) by a
local Yurok Indian. Limits of salmon are easily obtained and days of 30
plus fish are not uncommon.
Each kind of salmon and trout (salmonid)
in New York is currently managed with specific regulations on size,
creel limits, and seasons. Management policies require anglers to
identify their catch correctly to apply the proper regulations. Two
problems in correct identification frequently arise: (1) many anglers
and naturalists use common names for salmonids that differ from those
used in fishing regulations; and (2) some anglers, especially beginners,
are not familiar with techniques used to differentiate among these sport
fishes. Misidentification of fish prevents proper interpretation of
fishing regulations and may cause unintentional violations of fish and
wildlife laws, upsetting the best management efforts.
Salmonids have fins with soft
rays, except the adipose fin--a small, fatty fin located between the
dorsal and tails fins--which has not rays. Fins of salmonids lack the
stiff spines found on fins of some other fishes, such as sunfish and
yellow perch. The dorsal fin is located about midway on the back. The
tail varies from being deeply forked on some fish to nearly squared on
others.
In summary, salmon and trout are
smooth-scaled fish that have: (1) an adipose fin; (2) a large mouth with
the jaw extending back beyond the eye; and (3) soft-rayed fins.









Chinook Salmon
Oncorhynchus tshawytscha
The Chinook Salmon, also known as King Salmon, is a species
of anadromous fish in the salmon family. An anadromous fish
regularly lives in the sea, but will migrate to freshwater to
breed. It is a Pacific Ocean salmon, but has been introduced to
many other bodies of water throughout the world, including the
Great Lakes.
The Chinook salmon is blue-green on the back and top of the
head with silvery sides and white underneath. It has black spots
on its tail and the upper half of its body; its mouth is a dark
gray. Adult fish average 33 to 36 inches (840 to 910 mm), but
may be up to 58 inches (1.47 metres) in length; they average 10
to 50 pounds (5 to 25 kg), but may reach 130 pounds (50 kg).
Chinook salmon may spend between one to eight years in the
ocean before returning to their home rivers to spawn, though the
average is three to four years. Chinook prefer larger and deeper
water to spawn in than other species of salmon and can be found
on the spawning area from September through to December. Young
fish usually stay in freshwater from twelve to eighteen months
before traveling downstream to estuaries, where they remain for
several months.
Chinook salmon range from San Francisco Bay in California to
north of the Bering Strait in Alaska and the arctic waters of
Canada and Russia. Populations occur in Asia as far south as the
islands of Japan. Fresh water populations have also been
introduced into the Great Lakes.
Chinook were the first Pacific salmon to be transplanted to
other parts of the world, but the only notable success in
creating self-sustaining stocks has been in New Zealand. A key
factor in this general failure was that, like other Pacific
salmon, Chinook salmon seek the stream of their birth to spawn
and die. They have apparently failed to find the right kind of
spawning streams along Lake Michigan, so continuous stocking is
necessary to maintain the Chinook as one of the lake's most
prized game fish.
Chinook Salmon
Oncorhynchus tshawytscha
Identification tips for trouts and
salmons
- Length:
20 to 35 inches
- Weight:3 to
15 pounds
- Coloring:
iridescent green to blue-green on back; sides below lateral
line silvery; silvery to white underside
- Common Names:king
salmon, tyee, spring salmon, quinnat
- Found in Lakes:Stocked
in Michigan, Huron, Ontario, Erie and Superior
- Many chinook salmon
end their days as trophies mounted on tavern and game room
walls. In tribute to their size and character, they are also known
as "king salmon."
Chinook
were the first Pacific salmon to be transplanted to other parts of
the world, but the only notable success in creating self-sustaining
stocks has been in New Zealand. A key factor in this general failure
was that, like other Pacific salmon, chinook salmon seek the stream
of their birth to spawn and die. They have apparently failed to find
the right kind of spawning streams along Lake Michigan, so
continuous stocking is necessary to maintain the chinook as one of
the lake's most prized game fish.
Chinook are generally
caught by trolling. But as winter approaches and the lake becomes
colder, they disappear in search of more suitable water
temperatures. Some say they veer south along a route five to 15
miles offshore; others say that, unlike cohos, they simply move
offshore into deeper water.
For several reasons,
this salmon species is especially popular with fish management
agencies. They can be released five to six months after hatching and
therefore are cheaper to hatch and stock than cohos, which require
14 to 16 months. During their four- to five-year lifespan, chinooks
feed on large numbers of alewifes and so put more pressure on the
lake's alewife population.
"King Salmon" For the census-designated
place in Alaska, see King Salmon, Alaska.
Chinook Salmon
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Salmoniformes
Family: Salmonidae
Genus: Oncorhynchus
Species: O. tshawytscha
Binomial name
Oncorhynchus tshawytscha
(Walbaum, 1792)
The Chinook salmon, Oncorhynchus tshawytscha, (derived from Russian
чавыча), is a species of anadromous fish in the salmon family. It is a
Pacific Ocean salmon and is variously known as the king salmon, tyee
salmon, Columbia River salmon, black salmon, chub salmon, hook bill
salmon, winter salmon, Spring Salmon, Quinnat Salmon and blackmouth.
Chinook Salmon are typically divided into "races" with "spring chinook",
"summer chinook", and "fall chinook" being most common. Races are
determined by the timing of adult entry into fresh water. A "winter
chinook" run is recognized in the Sacramento River.
CHINOOK SALMON
DID YOU KNOW?Chinook salmon may spend between 1 to 8 years in
the ocean before returning to their natal streams to spawn, though the
average is 3 to 4 years.
SCIENTIFIC NAME:Oncorhynchus tshawytscha, from the
Greek words onkos (hook), rynchos (nose) Male and tshawytscha (the
common name for the species in Siberia and Alaska).
COMMON NAMES: King salmon, tyee salmon, Columbia River salmon,
black salmon, chub salmon, hook bill salmon, winter salmon and
blackmouth.
DESCRIPTION: The chinook salmon is blue-green on the back and
top of the head with silvery sides and white bellies; black spots on the
upper half of its body with gray/black mouth coloration. Up to 58 inches
in length and weigh up to 129 pounds; although chinook salmon is
generally up to 36 inches in length and weigh up to 30 pounds.
LIFE CYCLE: Spawning in streams that are larger and deeper
than other salmon utilize, chinook salmon spawn from late summer to late
fall, depending on the run. Fry and smolts usually stay in freshwater
from 1 to 18 months before travelling downstream to estuaries, where
they remain up to 189 days. Chinook salmon spend 1 to 8 years at sea
before returning to natal streams to spawn.
RANGE: Chinook salmon range from Kotzebue Sound, Alaska, to
Santa Barbara, California. Spawning and rearing chinook are found in
most of the rivers in this region, with significant runs in the Columbia
River, Rogue River, and Puget Sound.
HABITAT AND ECOLOGY: Freshwater streams and estuaries provide
important habitat for chinook salmon. They feed on terrestrial and
aquatic insects, amphipods, and other crustaceans while young, and
primarily on other fish when older. Eggs are laid in deeper water with
larger gravel, and need cool water and good water flow (to supply
oxygen) to survive. Mortality of chinook salmon in the early life stages
is usually high due to natural predation and human induced changes in
habitat, such as siltation, high water temperatures, low oxygen
conditions, loss of stream cover and reductions in river flow. These
impacts are primarily caused by poor forestry practices, dams, and water
diversions.Estuaries and their associated wetlands provide vital nursery
areas for the chinook prior to its departure to the open ocean. Wetlands
not only help buffer the estuary from silt and pollutants, but also
provide important feeding and hiding areas. The draining and filling of
wetlands and the pollution of the estuary from industrial discharges and
run-off, negatively impact chinook salmon.
ECONOMIC VALUE: Chinook salmon is highly valued by commercial
fishermen, despite their scarcity relative to other Pacific salmon along
most of the Pacific coast. Chinook salmon is also an important
subsistence fish and a valuable recreational resource.
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