
It
is one of the top gamefish species in the Pacific Northwest, coho
salmon are targeted by anglers due to their acrobatic skills and
tasty meat both in the ocean and rivers. Characterized by its ability
to retain its chrome appearance until the final spawning stage,
the coho salmon is also commonly known as "silvers" or
"bluebacks".
Description
Coho salmon have many distinct features that separate
them from other members of the pacific salmon species. Small rearing
juveniles have parr marks that run across their entire body. They
have white gums, black tongues and numerous spots along their back.
During the ocean phase, their body is silver in colour, with a blue
metallic back. Their square tail has a wide base that is scattered
with some spots, normally on the upper portion. Adults averagely
range between 4lb to 20lb, but fish beyond this range has been recorded
in the past. Small prematured spawning males between 25cm and 35cm
in length are known as "jacks". During spawning, adult
male will develop a distinct "hooked nose". Body colouration
during spawning is red.
Distribution
Coho salmon are found along the West Coast of North
America, from Alaska to Oregon. They are also found in many regions
along Northeastern Asia. During the adult ocean phase, these pelagic
predators will patrol around the North Pacific Ocean. In the final
spawning stage, they prefer to occupy waters that are generally
slow and shallow such as sloughs, creeks and pools.
Life History
Coho salmon have a anadromous lifecycle like all
pacific salmon species. Average lifespan is between 3 to 4 years
but some males may return as early as in 2 years. Emerging from
the eggs stage around later winter, small fries will rear in streams
and feed on insects for several months before migrating into the
ocean. They spend up to 3 years migrating in the ocean, and growing
rapidly during the final year. When matured, they move into their
birth stream to complete the lifecycle by spawning. Once spawning
is completed, adults die from exhaustion and their carcasses become
the base of a nutrient cycle in the stream ecosystem.
Fishing Locations
Coho are both targetted in the ocean and in the
rivers. In the ocean, they are generally found along the kelp beds
where they constantly feed on smaller fish species such as the needlefish.
They are also fished at river mouths, sloughs and deep pools in
a river.
Fishing Techniques
There are many techniques that can be used to target
coho salmon. These include trolling, mooching in the ocean, barfishing
in major river systems such as the Fraser River, spincasting on
beach, in sloughs and rivers, finally driftfishing in rivers. All
of these techniques have their own advantages and excitement. Common
lures used include spoons, spinners that are silver or copper in
colour, and buzzbombs. Bait used for drifting include freshly cured
roe, dew worms. Artificial presentations such as wool, corkies,
spin n' glow are also very effective. Depending on the water condition,
terminal tackles used are fishing line between 8 to 15lb test and
hook sizes between #1/0 and #6.
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