Analysis of Salmon and Steelhead Supplementation, 1990 Final Report.

• Main Authors: Miller, William H., Coley, Travis C., Burge, Howard L.
• Language: unknown
• Published: 2008
• Subjects: 59 BASIC BIOLOGICAL SCIENCES; SALMON; REARING; TROUT; BIOLOGICAL STRESS; BONNEVILLE POWER ADMINISTRATION; COLUMBIA RIVER; FEDERAL REGION X; INFORMATION; POPULATION DYNAMICS; ANADROMOUS FISHES; ANIMALS; AQUATIC ORGANISMS; FISHES; NATIONAL ORGANIZATIONS; NORTH AMERICA; RIVERS; STREAMS; SURFACE WATERS; US DOE; US ORGANIZATIONS; USA; VERTEBRATES; Atlantic salmon; Alaska
• Online Access: http://www.osti.gov/servlets/purl/6278476; https://www.osti.gov/biblio/6278476; https://doi.org/10.2172/6278476

Supplementation or planting salmon and steelhead into various locations in the Columbia River drainage has occurred for over 100 years. All life stages, from eggs to adults, have been used by fishery managers in attempts to establish, rebuild, or maintain anadromous runs. This report summarizes and evaluates results of past and current supplementation of salmon and steelhead. Conclusions and recommendations are made concerning supplementation. Hatchery rearing conditions and stocking methods can affect post released survival of hatchery fish. Stress was considered by many biologists to be a key factor in survival of stocked anadromous fish. Smolts were the most common life stage released and size of smolts correlated positively with survival. Success of hatchery stockings of eggs and presmolts was found to be better if they are put into productive, underseeded habitats. Stocking time, method, species stocked, and environmental conditions of the receiving waters, including other fish species present, are factors to consider in supplementation programs. The unpublished supplementation literature was reviewed primarily by the authors of this report. Direct contact was made in person or by telephone and data compiled on a computer database. Areas covered included Oregon, Washington, Idaho, Alaska, California, British Columbia, and the New England states working with Atlantic salmon. Over 300 projects were reviewed and entered into a computer database. The database information is contained in Appendix A of this report. 6 refs., 9 figs., 21 tabs.