"Mike" wrote in message
...

Just a question, because I don´t know anything about pink salmon. Do
all the pink salmon of a particular year return at the same time?

Just wondering because of the two year cycle you mentioned.

Pink Salmon (also commonly called Humpies because of the pronounced hump
that forms on spawning males) - the smallest of the PNW salmon species -
mature in 2 years (1 year at sea) and, unlike many other species of salmon,
do not have some portion of the population staying at sea for longer
periods. In many watersheds significant runs occur only every other year,
with very weak runs in the off years. i.e some watersheds have even # yr.
runs while others have odd # yr. runs, and at times for no apparent reason
the cycle of the runs within a given watershed may switch from odd yrs. to
even years (or vice versa) for no apparent reason. Fish from odd yr runs
and even year runs do not interbreed, though Humpies have been known to
cross with Chum salmon producing a sterile hybrid.


Bob Weinberger La Grande, OR