Wells Hatchery (Transferred to Winthrop Hatchery)Steelhead........19 Gill Na'-K'ATpase.................................................. 19 plasma electrolytes .......................................... 21 Hematology ................................................... 3 viral screening ................................................. 21 Indirect Fluorescent Antibody Test for Bacerial Kidney Digease.................................................................. 21 Histopathology................................................ 23 Seawater Adaptation............................................ 23 Tucannon Hatchery steelhead........................................ 23 Gi11a+-+ATPase… 23 p1 asma Electrolytes… 23 Hematol0gy… Viral screening................................................ 25 Indirect Fluorescent Antibody Test for Bacterial Kidney Disease.................................................... Histopathology................................................... 25 Seawater Adaptation........................................... Sumary ........................................................... 29 RESULTS AND DISCUSSION OF HATCHERY CHINOOK SALMON SURVEYS· 34 Carson Hatchery Spring chinook Salmon.............................. 34 Gill Na'-K'ATPase… g plasma glectrolytes ............................................ Hematology........................................................... 哈 Indirect Fluorescent Antibody Test for Bacterial Kidney Disease… 40 Wells Hatchery (Transferred to Winthrop Hatchery) Steelhead ........ 19 Gill Na+ -K+ ATPase ............................................ 19 Plasma Electrolytes ........................................... 21 Hematology .................................................... 21 Viral Screening ............................................... 21 Indirect Fluorescent Antibody Test for Bacerial Kidney Disease ....................................................... 21 Histopathology ................................................ 23 Seawater Adaptation ........................................... 23 Tucannon Hatchery Steelhead ........................................ 23 Gill Na+-K+ ATPase ............................................ 23 Plasma Electrolytes ........................................... 23 Hematology .................................................... 25 Viral Screening ............................................... 25 Indirect Fluorescent Antibody Test for Bacterial Kidney Disease ....................................................... 25 Histopathology ................................................ 25 Seawater Adaptation ........................................... 28 Summary ............................................................ 29 RESULTS AND DISCUSSION OF HATCHERY CHINOOK SALMON SURVEYS ............... 34 Carson Hatchery Spring Chinook Salmon .............................. 34 Gill Na+ -K+ ATPase ............................................ 34 Plasma Electrolytes ........................................... 36 Hematology .................................................... 36 Indirect Fluorescent Antibody Test for Bacterial Kidney Disease ....................................................... 40