Analysis & Commentary

In some fishing grounds, incidental takes of seabirds chasing bait fish happen during tuna longline operations. Longline fishermen have long been taking steps to avoid the seabird incidental take as it hampers their fishing operations. Ideas and efforts of crew have been accumulated in developing wa…Read more…>>

Jiro Suzuki, Tuna Biologist Introduction Stock recovery of the eastern Atlantic bluefin tuna has been confirmed by the International Commission for the Conservation of Atlantic Tunas (ICCAT) scientific committee, the Standing Committee on Research and Statistics (SCRS), resulting in a flood of bluef…Read more…>>

OPRT held its second seminar in Tokyo on Nov.15, reporting the result of the study mission dispatched to China, last August, by OPRT. Professor Lou Xiabo, Tokyo University of Marine Science and Technology, who participated in the mission, reported that the current demand of the sashimi – grade…Read more…>>

Nowadays, catch by purse-seiners (PS) are increasing rapidly along with ever increasing fishing capacity and they currently catch 60% of the world Tuna and Skipjack. Purse-seiners in the Western and Central Pacific Ocean caught 993,000 tons in 1991, and it had grown to 1,543,000 tons in 2011, accord…Read more…>>

The building for experiment on parent bluefin spawning, which the Fisheries Research Agency (FRA) had been constructing at the Seikai National Fisheries Research Institute in Nagasaki, western Japan, for the promotion of bluefin tuna farming, completed at the end of March this year. The new facility…Read more…>>

The domestic shipments of farmed Pacific bluefin tuna in Japan in 2012 totaled 9,592 tons, slightly less than 10,224 tons in the previous year, according to the Fisheries Agency of the Japanese government on March 29. From 2010, the Ministry of Agriculture, Forestry and Fisheries (MAFF) required tun…Read more…>>

At its 16th meeting of the Conference of Par ties held in Bangkok March 3-14, the Convention on International Trade on Endangered Species of Wild Fauna and Flora (CITES) decided to include Oceanic Whitetip Shark, three species each of Hammerhead Shark and Porbeagle in its Appendix II requiring expor…Read more…>>

An OPRT seminar under the theme “Will overfishing of bigeye tuna in the Western and Central Pacific stop?–expectation toward the five-year program for recovery of bigeye tuna stock” was held in Tokyo on Jan. 31, 2013. OPRT Newsletter International No. 42 reported the situation in w…Read more…>>

-Ziro Suzuki, National Research Institute of Far Seas Fisheries- Recently a scientific paper was issued, entitled “Is it good or bad to fish with FADs? What are the real impacts of the use of drifting FADs on pelagic marine ecosystems?” (Laurent Dagorn, Kim N. Holland, Victor Restrepo &a…Read more…>>

- Professor Xiabo – The trend of sashimi tuna market in eastern Asia was reported by Professor Lou Xiabo, Tokyo University of Marine Science and Technology at the OPRT seminar for its members on May 16. He analyzed the trend using various statistics and information. He estimated the market in Taiwan…Read more…>>