Although the initial purpose
of hatcheries was to lessen human impacts to salmon populations,
long term effects which were not fully considered resulted in
a decline of wild, native salmon populations. Hatchery fish
compete with native fish for food. Also, hatchery fish are genetically
weaker than wild fish. Therefore, interbreeding results in a
lower survival rate for wild fish over the long term. However,
hatchery managers are working to improve their operations and be
part of the solution. (8 of 15)
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Although the initial purpose
of hatcheries was to lessen human impacts to salmon populations,
long term effects which were not fully considered resulted in
a decline of wild, native salmon populations. Hatchery fish
compete with native fish for food. Also, hatchery fish are genetically
weaker than wild fish. Therefore, interbreeding results in a
lower survival rate for wild fish over the long term. However,
hatchery managers are working to improve their operations and be
part of the solution. (8 of 15)