Native fish stocking of rivers: discriminating between hatchery-reared and wild fish [ 2003 - 2006 ]

Research Grant

[Cite as]

Researchers Dr BM Gillanders; Dr DA Crook; Dr AC Sanger

Brief description Stocking of fish is widely used in attempts to restore native fish populations. Little is known of the fate of stocked fish or the effects of stocking on resident populations. We will develop and evaluate protocols for chemical marking of otoliths of hatchery-reared fish so that their source can be determined. Experimental stocking of hatchery-reared fish will be undertaken and population structure and source of stocked versus wild fish determined in stocked and unstocked rivers. Natural chemical signatures will also help determine important recruitment areas. The outcomes will allow fisheries managers to make informed decisions regarding stocking strategies.

Funding Amount $350,000

Funding Scheme Linkage Projects

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