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in June-July 1984 and the results will be used, along with 

 other relevant data, to determine if additional studies or 

 regulations are necessary to assure that local sea lion 

 populations are not reduced below their optimum sustainable 

 population level. 



Assessment of Marine Mammal/Fishery Interactions in Hawaii 

 (E. W. Shallenberger, Ph.D., Pacific Basin Maritime, Inc.) 



Although it is known that porpoise affect, and are 

 affected by, fisheries in Hawaii, the precise nature and 

 magnitude of the effects are uncertain. This investigator 

 is compiling and evaluating existing information to determine 

 the kinds of additional studies, if any, that would be 

 required to better define the nature and extent of the 

 interactions, the need for mitigation measures, and the 

 likely safety and effectiveness of possible mitigation 

 measures. The study results, expected to be available early 

 in 1984, will be used to identify actions that should be 

 taken by the National Marine Fisheries Service or others to 

 better define or reduce impacts on the affected fisheries or 

 porpoise populations. 



Interactions Between Pilot Whales and Fisheries near 

 Santa Catalina Island, California 

 (S. H. Shane) 



Studies conducted by the California Department of Fish 

 and Game, under contract to the National Marine Fisheries 

 Service, indicate that four to twelve percent of the pilot 

 whales found around Santa Catalina Island may be caught and 

 killed each year in the southern California squid fishery. 

 The size, movements, and productivity of the affected pilot 

 whale population and the precise nature, causes, and effects 

 of the incidental take are unknown. In January 1983, this 

 investigator initiated a three-year study to better determine 

 the number, size, age/sex composition, and discreteness of 

 pilot whales in the vicinity of Santa Catalina Island during 

 the winter months, and the nature, extent, and significance 

 of interactions between pilot whales and the squid fishery 

 in the area. The study was supported by the National Marine 

 Fisheries Service in 1983; in 1984, it is being supported 

 jointly by the Commission and the National Marine Fisheries 

 Service. 



