FISHERY BULLETIN: VOL. 79. NO. 2 



shares, composing Sij, are assumed to be 129^ for 

 the skipper and 7^c for each additional crew 

 member. 



FACTORS OF INTEREST 



Vessel Types 



Two representative vessel types were consid- 

 ered: a 33 m (108 ft) combination crabber/trawler 

 and a 25-28 m (80-92 ft) bottom trawler or combi- 

 nation shrimp and groundfish trawler. These ves- 

 sel types are thought to be representative of many 

 of the U.S. vessels likely to participate in future 

 western Alaska groundfish harvests. 



The vessel characteristics and capital expenses 

 for the two vessel types are listed in Table 2. The 

 vessel characteristics are based on statistical 

 analyses of vessels registered with the State of 

 Alaska as performed by Katz et al.^ The charac- 

 teristics of vessel type 1 are average values for a 

 group of combination crabber /trawler vessels fish- 

 ing for king and tanner crab in Alaska ( class 8.5 of 

 Katz et al. (footnote 7)). Similarly, the characteris- 

 tics of vessel type 2 are representative of a group of 

 Alaska shrimp trawlers and smaller crabber/ 

 trawlers (class 8.3 of Katz et al.). Type 2 vessel 

 characteristics are also believed to be representa- 

 tive of the larger groundfish trawlers of California, 

 Oregon, and Washington. The capital expenses in- 

 curred by owners of these vessel types were esti- 

 mated with the help of industry personnel 

 (Pigott**; Jaeger^). 



Processor Location and 

 Mode of Operation 



Two modes of operation were compared: deliver- 

 ing the catch at sea to a floating processor and 

 delivering the catch to a land-based processor. The 

 method of sea delivery is currently being employed 

 by U.S. fishermen participating in two interna- 

 tional joint fishing ventures for groundfish off the 

 western Alaska coast. Under the arrangements of 

 these joint ventures, the U.S. trawlers transfer 



Table 2. — Vessel characteristics and capital expenses for two 

 representative vessel types ( see text). 



'Katz.P.L., K.C.Lee, L.J. Bledsoe, and J. Buss. 1976. The 

 classification, enumeration, characteristics and economic per- 

 formance of Alaska shellfish vessels. Part 1-Classification, 

 enumeration and vessel characteristics. Norfish Tech. Rep. 

 61, 59 p. 



^George M. Pigott, University of Washington, Department of 

 Food Science, Seattle, WA 98195, pers. commun. December 1979. 



®Sig Jaeger, President, North Pacific Vessel Owners Associa- 

 tion, Fishermen's Terminal. Seattle, WA 98119, pers. commun. 

 January 1980. 



their catch at sea via detachable cod ends to large 

 floating processors provided by the foreign part- 

 ner. The fish are then processed aboard the 

 factoryships and the resulting product is taken to 

 foreign ports and sold on the foreign market. 



During the sea delivery mode of operation, it is 

 assumed that: 1) the floating processor is on or 

 near the fishing grounds, 2) fishing vessels have at 

 least two cod ends so replacement after each haul 

 is not delayed, 3) full cod ends are towed to the 

 processor and empty cod ends are returned to the 

 fishing vessel periodically by a motor launch, and 

 4) the processing rate of the factory vessel is not 

 limiting. 



Table 3 lists the estimated operating conditions 

 for the sea delivery and land delivery modes of 

 operation. Differences between the two modes are 

 as follows: 



Table 3. — Operating conditions for vessels harvesting ground- 

 fish from western Alaska. Delivering the catch at sea versus 

 delivering to a land-based processor. 



306 



