How many eggs do salmon
Generally from 2,500 to 7,000 depending on species and size of
fish. The chinook salmon generally produces the most and largest
What are salmon fed in a
Vitamin-rich, high-protein diets made up of dried meals from coarse
fish, animal meat excess, plant meal and bone meal, or meal from
How many of the young salmon released from
hatcheries come back as adults?
Releases of large fingerlings usually result in returns of one to
Why are fishladders
A fishladder, or fishway, often used in salmon country, is
constructed to provide for up-stream passage of fish over a dam or a
natural barrier that might prevent or impede progress to spawning
Where do salmon go in the
Contrary to earlier beliefs, many salmon from North American rivers
roam far at sea in the North Pacific Ocean and the Bering Sea. The
oceanic distribution of the salmon is dependent upon the species and
point of origin. Sockeye and chinook salmon from northwest Alaska,
for example, may migrate across the Bering Sea to areas close to
Kamchatka, U.S.S.R., and south of the Aleutian Islands into the North
Pacific Ocean; the sockeye also migrate eastward to the Gulf of
Salmon such as the pink, chum, and coho from central and southeast
Alaska, British Columbia, and Washington State, migrate out into the
Pacific and Gulf of Alaska. Many steelhead trout from Washington and
Oregon are known to migrate far at sea to areas off the Alaskan
Peninsula. Some salmon migrate several thousand miles from the time
they leave the rivers as juveniles until they return as adults. A
chinook salmon tagged in the central Aleutian Islands and recovered a
year later in the Salmon River, Idaho, had traveled about 3,500
miles; a steelhead trout tagged south of Kiska Island (western
Aleutians) was recovered about six months and 2,200 miles later in
the Wynoochee River, Washington.
What is a kokanee, or silver
It is the landlocked subspecies of a sockeye salmon. The kokanee
spends its entire life in fresh water and usually does not attain the
size of its sea-migrating cousin.
Do landlocked Pacific salmon die after
Yes. This phase of their life history is the same as their seagoing
How large do salmon
Weights of 100 pounds and slightly over have been reported from
European countries for the Atlantic salmon;
the record for the largest of the Pacific species, chinook, is 126
pounds for a fish caught on commercial gear in
What is the oldest known age of salmon and
steelhead (in completed years)?
Pacific salmon: chinook--7; sockeye--7; silver--4; chum--6; pink--2
Atlantic salmon: 8 Steelhead trout: 8
Is a steelhead a salmon or a
The steelhead is a rainbow trout that migrates to sea as a juvenile
and returns to fresh water as an adult to spawn.
Unlike the Pacific salmon, the steelhead trout does not always die
following sp3wning and may spawn more than
once ar,d return to the sea after each spawning.
How old are salmon when they migrate from
fresh water to the ocean?
That depends on species:
Chinook--fall chinook, 3-4 months after hatch; spring chinook, 12-16
Chum--a week to a month
Sockeye--12 months to 36 months
Pink--a week to a month.
How many species of Pacific salmon are
There are six: Chinook, coho, pink, sockeye, chum, and masu. The
first five are found in North America. The masu occurs only on the
Asiatic coast of the North Pacific.
Is it true that salmon return to spawn in
freshwater areas where they were
Almost always. Some straying has been documented, but it is minor.
Most spawning salmon return to the precise stream of their birth,
sometimes overcoming great distances and hazardous river conditions
to reach home.
What is the difference between the Atlantic
salmon and the Pacific salmon?
The Atlantic salmon is actually a member of the genus Salmo, or trout
family, not a salmon, which is placed in the genus Oncorhynchus. The
misnomer is so widely accepted that it would only cause confusion to
rename the species. The main biological difference between the
Atlantic and Pacific "salmons" is that Salmo may spawn more than
once, and Oncorhynchus die soon after one spawn.