Histopathology (See Appendix B)...............................40 Seawater Adaptation........................................... 42 Big White Salmon Hatchery Fall chinook salmon...................... 42 Gill Na'-K'ATpase............................................ Plasma Blectrolytes .......................................... 45 Hematology.................................................. Viral Screening… 45 Indirect Fluorescent Antibody Test for Bacterial Kidney Disease....................................................... 45 Histopathology… 47 Seawater Adaptation… Summary ......................................................................... 49 ........................................................ 50 Stee1head.. % chinook salmon..................................................... 51 LITERATURE CITED 53 APPENDIX A APPENDIX BHistopathology (See Appendix B) ............................... 40 Seawater Adaptation ........................................... 42 Big White Salmon Hatchery Fall Chinook Salmon ...................... 42 Gill Na+ -K+ ATPase ............................................ 42 Plasma Electrolytes ........................................... 45 Hematology .................................................... 45 Viral Screening ............................................... 45 Indirect Fluorescent Antibody Test for Bacterial Kidney Disease ....................................................... 45 Histopathology ................................................ 47 Seawater Adaptation ........................................... 47 Summary ............................................................ 49 CONCLUSIONS ............................................................. 50 Steelhead .......................................................... 50 Chinook Salmon ..................................................... 51 LITERATURE CITED ........................................................ 53 APPENDIX A APPENDIX B