Report on the Japan/New Zealand joint trawl survey for bottomfishes in the Area D in November/December 1983 by R/V Shinkai Maru / H. Hatanaka, Y. Uozumi, J. Fukui, M. Aizawa.

Also included are two preliminary reports authored by H. Hatanaka (Far Seas Fisheries Research Laboratory, Japan and Fisheries Research Division, New Zealand): "Preliminary report on the Japan/New Zealand joint trawling survey in the Area D in November/December 1983 by R/V Shinkai Maru" (5 pages); and "Preliminary report on the Japan/New Zealand joint trawling survey in the Areas E and F in October/November 1983 by R/V Shinkai Maru" (5 pages).

Introduction -- I. Outline of the survey -- 1. Objectives -- 2. Area of the survey -- 3. Date and period -- 4. Research vessel -- 5. Fishing gear used -- 6. Scientists and crew -- II. Methods -- 1. Survey design and trawl operation -- 2. Trawl gear measurements -- 3. Weighing of the catches -- 4. Biological measurements -- A) Size composition -- B) Fish - body measurements -- 5. Oceanographic observation -- 6. Stock size estimation -- III. Results and discussions -- 1. Status of the operations and basic data obtained -- A) Trawl operation -- B) Species caught -- C. Biological investigation -- D. Oceanographic observation -- 2. Water temperature distribution -- 3. Distributions and stock sizes of main species -- A) Hoki -- B) Ling -- C) Warehous -- D) Arrow squid -- E) Some other species -- F) All species -- 4. Biologies of main species -- A) Hoki -- B) Ling -- C) Silver warehou -- D) White warehou -- E) Arrow squid -- IV. Summary and recommendation -- V. References.

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