Editing National Fish Hatchery System (section)

== Responsibilities ==
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The original purpose of the NFHS was to supplement declining native stocks of coastal and lake food fish through fish propagation. The NFHS has extensive experience culturing over 100 different aquatic species, and now propagates fish for reasons beyond supplementing declining food species. Hatchery-reared fish are now used to replace fish that were lost from natural events including drought, flood, [[habitat destruction]], or human influences such as over-harvest, pollution, habitat loss due to development and dam construction. This is necessary in order to establish fish populations that meet specific management needs, and to provide for the creation of new and expanded recreational fisheries opportunities.

The role of the NFHS has changed significantly over the past 30 years as a result of the increasing demands recently placed upon various aquatic systems. Major responsibilities of the NFHS, besides mentioned fish propagation, now include helping to recover species listed under the [[Endangered Species Act]], restoring native aquatic populations, mitigating for fisheries lost as a result of federal water projects, and providing fish to benefit Indian tribes and [[National Wildlife Refuges]]. NFHS concentrates its efforts on several fish species including [[lake trout]], [[rainbow trout]], [[cutthroat trout]], [[paddlefish]], and [[sturgeon]]. Other interesting species that the NFHS helps to restore include freshwater [[mussels]] and [[amphibians]].