The Fishery-Dolphin Conflict in the Iki Island Area 
of Japan 
(Toshio Kasuya, Ocean Research Institute, Japan) 
Fishermen in the Iki Island area of Japan fish for a 
number of species including yellowtail and squid. In recent 
years, the catch of these species has declined, and the 
fishermen, attributing poor fishing success to the presence 
of the cetaceans, have killed several thousand dolphin. Although 
these facts were generally known, reliable information on 
the Iki Island fishery and the cetacean-fishery conflict was 
not available. This study was contracted with a Japanese 
scientist to summarize available information on the history 
of the fishery and the fishery-cetacean conflict. 
Interactions Between Fur Seals and Fisheries in the Bering Sea 
(Gordon Swartzman, University of Washington, Seattle) 
Since marine mammals are affected by sport and commercial 
fisheries, marine mammal populations and fisheries must be 
managed cooperatively to meet the goals of the Marine Mammal 
Protection Act and the Fishery Conservation and Management 
Act. This fact has not been reflected in many fishery 
management plans, and in 1980, the Commission, the North 
Pacific Fishery Management Council, and the National Marine 
Fisheries Service jointly sponsored a workshop to determine 
how ecosystem simulation models might be used to facilitate 
the development of ecosystem-oriented management plans (see 
Chapter V). Since the workshop focused on marine mammal- 
fishery interactions in the Bering Sea, this study was 
undertaken to compile and provide a preliminary evaluation 
of data and models being used to assess the interrelationships 
between fur seals, finfish, and other components of the 
Bering Sea ecosystem. The report, which has been published 
(see Appendix B), includes: a summary of available information 
concerning fur seals and fisheries in the Bering Sea; an 
assessment of the present status of fish species that are 
the primary prey of the North Pacific fur seal; a description 
and evaluation of the models that are being developed and 
used to estimate the size and productivity of pollack and 
other commercially exploited fish stocks in the Bering Sea; 
and recommended actions for improving the data and models 
upon which management of fish stocks, the fur seal herd, and 
the Bering Sea ecosystem are being based. The National 
Marine Fisheries Service, the North Pacific Fishery Management 
Council, and the Commission are reviewing the report and 
representatives of the Service, the Council, and the Commission 
will meet in early 1981 to discuss follow-up actions that 
may be necessary and desirable. 
Senge 
