regulatory methods already adopted so question- 

 able, that some analysis of this fishery, even 

 with very limited data, is clearly necessaiy if 

 we are to avoid serious and perhaps irreparable 

 mistakes. 



CONCLUSIONS 



If the approach embodied in this study proves 

 to be as useful as expected, it is considered 

 possible that the techniques could be extended to 

 provide a broader approach to multifishery 

 cases. The seasonal nature of the availability of 

 fish and of weather conditions on the Pacific 

 Coast suggests that an optimal harvesting 

 technique for virtually all species (with the 

 possible exception of halibut and some other 

 bottomfish) will involve multipurpose gear 

 exploiting multiple species in different geo- 

 graphic locations. For example, salmon, crab, 

 and albacore fishing by combination units may 

 be significantly more attractive economically 

 (always assuming some control over entry) 

 than the present hodgepodge of vessels involved 

 in each. We do have combination vessels at 

 present, of course, but they are not designed to 

 any set of specifications that present data would 

 make available if an integrated view of the 

 fisheries available to each type of gear were 

 taken as the frame of reference. 



The discussion above suggests the nature of 

 the outputs to be expected from these models 

 in the short run. We are still limited to syn- 

 thetic numbers in many of the sectors at present, 

 but these are being systematically whittled 

 down. It cannot be stressed too strongly that 

 the whittling down process can be done far 

 more economically and effectively once the 

 sensitivity of the desired outputs to the various 

 parameters involved has been established by 

 the model. Moreover, some of the fisheries and 

 some elements of the model have now reached 

 a point where reasonably hard data are avail- 

 able which can be manipulated to provide at 

 least rank-ordering of a number of management 



options. While the overall program is clearly 

 geared to longer range objectives, short run 

 outputs of real usefulness in management 

 planning can be expected, and will increase in 

 number and predictive value as the work 

 progresses. 



Members of this workshop and other interested 

 scientists and economists are urged to com- 

 municate to us the nature of their interest in 

 the pi'oblems addressed by the University of 

 Washington team. In addition, it might be 

 mutually advantageous if visits to the University 

 of Washington could be arranged to permit 

 actual operating experience with these models. 



LITERATURE CITED 



BELL, FREDERICK W., 1970. Estimation of the 

 Economic Benefits to Fishermen, Vessels and Society 

 from Limited Entry to the Inshore U.S. Northern 

 Lobster Fishery, Marine Technology 1970 Pi-eprints — 

 Vol. 1. Marine Technology Society, 6th .\nnual Con- 

 ference and Exposition .June 29-July 1, 1970, Wash- 

 ington, D.C. 



CRUTCHFIELD. .JAMES and GIULIO PONTECORVO, 

 1969. The Pacific Salmon Fisheries. The Johns Hopkins 

 Press, Baltimore, Maryland. 



CRUTCHFIELD, J.A. and A. ZELLNER, 1962. Economic 

 Aspects of the Pacific Halibut Industry, Fishery In- 

 dustrial Research. United States Department of Intei-ior, 

 Fish and Wildlife Service, Bureau of Commercial 

 Fisheries, U.S. Government Printing Office, Washington, 

 D.C. 



PAULAHA, DENNIS E.. 1970. A General Economic 

 Model for Commercial Fisheries and its .Application to 

 the California Anchovy F"isheiy. LTnpublished Ph. D. 

 Dissertation. University of Washington. 



RICKER, W.E., 1958. Handbook of Computations for 

 Biological Statistics of Fish Populations. Bulletin of 

 the Fisheries Research Board of Canada. No. 119, 

 pp. 1-300. 



ROYCE.W..D. BE VAN, J. CRUTCHFIELD. G.PAULIK. 

 R. FLETCHER, 1963. Salmon Gear Limitation in 

 Northern Washington Waters. University of Washington 

 Publications in Fisheries, New Series, Vol. II, No. 1. 



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