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June 7th, 2004
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Q. My question is twofold. I live in Connecticut and the local stream I fish (the Salmon River) has been undergoing Atlantic Salmon restoration for quite awhile with limited success. I've had a number of theories about why this is, and one of the first is that they stock the salmon as parr, rather than eggs, thereby reducing the "Survival of the Fittest" attribute and/or imprinting of the rivers smell. Would that be an accurate statement? Also, this stream is heavily fished and therefore heavily stocked (browns, brookies, and rainbows) and I have seen trout parr so I know the river is of good quality. But I can't help but wonder if they should remove the browns and rainbows while replenishing the brookies with native strains to try to get the ecosystem somewhat closer to what the salmon need. Do you believe this could be another piece to the puzzle?
A.
Not being familiar with the fisheries management
program in Connecticut, I'm not going to be able
to give you very satisfactory answers to your
questions; you need to talk to the local biologists
who are familiar with the fisheries present and the
thinking behind the stocking policies. I will,
however, take a shot at some of your points.
You'd be surprised how much fisheries work is
done with little or attention paid to the ecological
characteristics of the stream.
First, stocking as parr vastly improves the
survival rate; stocking of eggs is rare, costly,
and not always very efficient, especially on a
large scale. I don't think it has much to do
with "survival of the fittest." In fact, this
attribute applies to the parr just as much as it
would to the eggs. The importance of imprinting
the river's "smell" would only be important if
they were expecting these fish to migrate and
return to spawn; your later statements make me
wonder if these fish are put in only for
"put-and-take" fishing, thus making imprinting
of little importance. Again, not being familiar
with what the biologists are trying to do makes
my comments just guesses.
Your comments about ecosystem restoration raises
a ton of questions, but again, without knowing
details makes it difficult for me to comment.
I can't understand why an Atlantic salmon
restoration project is being done in a stream
heavily stocked with three trout species. So,
rather than wildly speculating as to what might
best be done, I think I better just not say
anything. Sorry.
~ C. E. (Bert) Cushing, aka Streamdoctor 105 W. Cherokee Dr. Estes Park, CO 80517 Phone: 970-577-1584 Email: streamdoctor@aol.com
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