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Lake sturgeon, a primitive-looking
fish that can exceed five feet and 100 pounds, once were common enough in
Lake Champlain that they supported a small commercial fishery that harvested
between 50 and 200 sturgeon annually. Harvests declined rapidly in the mid-20th
Century following years of over-fishing and the damming of rivers used heavily
by sturgeon for spawning, particularly the Missisquoi and Lamoille.
The state closed the
sturgeon fishery in 1967, and Vermont now lists this torpedo-shaped fish as
a state endangered species.
The Department of Fish
and Wildlife is currently studying the lake sturgeon and developing approaches
for restoration of this species. Sturgeon are being collected during their
spawning runs in the Winooski and Lamoille Rivers, and similar work in the
Missisquoi River is planned for the spring of 2001. These studies will give
Department biologists information about the abundance of spawners and their
age distribution. In addition, small tissue samples will allow for genetics
analysis, so biologists can determine whether sufficient genetic diversity
exists within the population for restoration to go forward.
The Department is also
working to protect and restore sturgeon habitat through its active participation
in hydropower dam relicensing proceedings. The Department is currently assessing
what effect removal of the Peterson Dam on the Lamoille River would have on
sturgeon restoration efforts.
With its skeleton of
cartilage and a shark-like tail, the sturgeon's appearance probably has not
changed much since it first evolved 65 million years ago during the Cretaceous
period. That these fish can sometimes live for more than 150 years only makes
them more mysterious. Whether they will still be in Lake Champlain for our
grandchildren to enjoy is uncertain at this time.

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