Aomori Prefectural Industrial Technology Research Center Fisheries Research Institute And Fisheries in Aomori Prefecture

Aomori Prefectural Industrial Technology Research Center Fisheries Research Institute And Fisheries in Aomori Prefecture

Organization of Aomori Prefectural Industrial Technology Research Center Four Department and thirteen Institute AITC Headquartrers Department of Industry Industry Research Institute, Hirosaki Industry Research Institute, Hchinohe Industry Research Institut Department of Agriculture Department of Fisheries Department of Food Processing Agriculture Research Institute, Vegetable Research Institute, Apple Research Institute, Livestock Research Institute, Forestry and Forest Products Research Institute Fisheries Research Institute Inland water Fisheries Research Institute Food Processing Research Institute, Shimokita Food Research Institute, Agriculture Products Processing Research Institute

Organization of Fisheries Research Institute Director Research Planning Manager Vessel General Affair section Fisheries Resources management Section Fisheries Ground Environment Section Kaiun-maru Seiho-maru Natsudomari Scallop section Fisheries Resources Enhancement Section

Fisheries Resources Management Section Development of fisheries resources management methods for the effective and continuous using of marine resources Prediction of fishery condition and marine condition Ear stone of flounder Trawl research Image of fishery finder Rockfishes crowding around a man-made fishing reef

Fisheries Ground Environment Section Analysis and assessment of fishery environment and water quality Information service on fishery environment Monitoring and study on toxin producing phytoplankton Automatic Marin Environment Observation Buoy Nutrient Analysis Research of Squid DSP causative plankton

Scallop section Survey about maturation and larva of scallop Development of scallop culture techniques Information service about seed collection and culture management Development of Ark shell culture techniques Maturation survey Larva survey Bottom culture survey

Fisheries Resources Enhancement Section Development of mass production of fishes and seaweed seeds Development of release techniques of artificial fish seeds Development of enhancement techniques of marine resources Seed production of fishes Artificial fertilization of flatfish Indoor management of seaweeds Scuba investigation

1 Location of Aomori prefecture Aomori Prefecture

2 Marine environment in Aomori Japan Sea Tugaru Strait Oyashio Cold Current Mutsu Bay Pacific Ocean Fisheries Research Institute Aomori Prefecture

Production(10 4 metric tones) 150 146.4 100 50 39.6 32.3 25.8 21.7 21.1 20.3 19.7 18.7 12.8 0 Fig. Fisheries production in Japan(2008)

1,553 1% 10,290 4% 1,053 0% 5,805 2% 50,594 18% 63,186 23% 58,626 21% 87,043 31% Scallop Sardine Flying squid Japanese Common Squid Tuna Sea Cucamber Fig. Fisheries production of main marine species in Aomori(metric tonnes)

Production(metric tones) 700,000 600,000 500,000 400,000 Others Aomori 300,000 200,000 100,000 Hokkaido 0 Year u Fig. Change in annual production of Japanese Scallop in Japan

Fig. Image of scallop Japanese Scallop (Patinopecten yessoensis) Sail boat The shape of scallop is like a sail boat when shells are opened European Great Scallop (Pecten maximus) Venus birth Venus is standing on the shell.

674,920 30,404 497,860 788,758 454,312 678,451 58,181 1,239,934 3,704,154 1,260 635,465 34,698 49,436 Hong Kong Taiwan Korea China Thailand Singapore Indonesia United States of America Canada France Australia New Zealand Others Fig. Amount of Scallop Products Exported from Japan(Kilograms)

1950 1952 1954 1956 1958 1960 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2009 Productiom(metric tons) 2,500,000.0 2,000,000.0 others Argentina Chile 1,500,000.0 Australia France 1,000,000.0 United Kingdom Canada 500,000.0 0.0 United States of America Japan China year Fig. Scallop Production in the World

5 Scallop Culture in Aomoi Mutsu Bay Fig. Area of Mutsu Bay Scallop culture in Mutsu Bay 1,660k m2 Coastline of Mutsu Bay 246km Area of scallop culture 500km2 (dotted line)

1)Bottom culture of scallop Seeds released in autumn or spring Rearing on the see bed for one or tow years after release

2)Hanging culture of scallop (Long line system) Surface buoy Adjustment buoy Nets Lantern net Sand bag Anchor

Spat Collector (Onion bag) Pearl net Lantern net Ear hanging

Collector Set ting of Collector Pearl Net Seeds collection Pearl Net First reducing density Landing of semiadult scallops Landing of Ear hanging Landing of adult scallop in net Landing of Ear hanging Exchange to or Lantern net Exchange to Ear hanging or Lantern net Landing of adult scallop (to EU) Fig. Basic Process of Scallop culture in Mutsu Bay

Fig. Monitoring of Environment condition In Mutsu Bay Tairadate Buoy East Bay Buoy Fisheries research Institute Aomori Bay Buoy

Temperature( ) Temperature( ) 25 20 15 10 1m 15m 30m Bottom East Bay 5 0 25 20 15 10 1m 15m 30m Bottom West Bay 5 0 Fig. Changes in temperature in Mutsu bay

Gonad Index Gonad Index 30.0 25.0 20.0 15.0 10.0 5.0 0.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 Fig. Changes in Gonad Index of Scallops

Fig. Maturation of Japanese scallops Male (White cream color) Female (Reddish orange or pinkish color)