CONTENTS 



Introduction 



Part I— Catch and temperature observed for several recreational and commercial species off central and southern California 2 



Results 3 



Central California (Monterey Bay, San Francisco, and Bodega Bay) 3 



Southern California (Point Conception to Coronado Islands, Mexico) 5 



Yellowtail 5 



Pacific bonito 5 



Pacific barracuda 1 



White seabass 7 



Albacore 7 



Part II— Sea surface temperature and its relation to the catch of the pelagic migratory species of yellowtail, Pacific bonito, and 



Pacific barracuda off San Diego 9 



Results 9 



Catch temperature variation 11 



Analysis and conclusions — parts I and II 11 



Acknowledgments 18 



Literature cited 18 



Figures 



1 . Airborne infrared sea surface temperature survey tracks 2 



2. Distribution of salmon catch off northern California (Monterey Bay to Bodega Bay) 3 



3. Catch and temperature data by block area for salmon caught off northern California 4 



4. Distribution of catch by temperature for salmon 4 



5. Distribution of yellowtail catch off southern California and northern Mexico by month 5 



6. Catch and temperature data by block area for yellowtail caught off southern California 5 



7. Distribution of catch by temperature for yellowtail 6 



8. Distribution of Pacific bonito catch off southern California and northern Mexico by month 6 



9. Catch and temperature data by block area for Pacific bonito caught off southern California 7 



10. Distribution of catch by temperature for Pacific bonito 8 



1 1 . Distribution of Pacific barracuda catch off southern California and northern Mexico by month 8 



12. Catch and temperature data by block area for Pacific barracuda caught off southern California 9 



13. Distribution of catch by temperature for Pacific barracuda 10 



14. Distribution of white seabass catch off southern California and northern Mexico by month 10 



15. Catch and temperature data by block area for white seabass caught off southern California 11 



16. Distribution of catch by temperature for white seabass 12 



17. Distribution of albacore catch off southern California and northern Mexico by month 12 



18. Catch and temperature data by block area for albacore caught off southern California 13 



19. Distribution of catch by temperature for albacore 14 



20. Survey flight track pattern flown during the 3-yr study of sea surface temperature 14 



21. Plots of CPUE and temperature by weekly periods for yellowtail 15 



22. Plots of CPUE and temperature by weekly periods for Pacific barracuda 16 



23. Plots of CPUE and temperature by weekly periods for Pacific bonito 17 



Tables 



1. Breakdown of percent catch to temperatures observed from Kolmogorov-Smirnov graphs 18 



2. Mean temperatures for large catches 18 



3. Nonparametric correlation for sea surface temperature and catch of all species 19 



