hatchery surplus

hatchery surplus
returning hatchery fish in excess in broodstock that may be given to tribal groups as part of their treaty rights, transported elsewhere for anglers to catch, donated to food programmes, sold to support hatchery programmes or, if in poor condition, converted to fish meal for hatchery feed, placed in streams for nutrient enrichment, given to wildlife rehabilitation centres or discarded. Such hatchery fish, not caught by anglers, are used as outlined above so that they do not compete with native fish for spawning sites, food or shelter nor do they breed with native fish and produce less fit populations

Dictionary of ichthyology. 2009.

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