Toshi's work

Design of Artificial reef in Chile Masatoshi FUTAGAWA / CORDUNAP May 22, 2012 1.       Functions of Artificial reefs (AR) Formation of flora and fauna Algae larvae will attach to AR which was carried by current after installation of artificial reef (AR), and the larvae grow with nutrition in water and sunlight. Water current stagnated by AR and grown algae, and sediment attach or settle on AR, the sediment gives more nutrition to algae, and flora is formed around AR. The algae harbor fish larvae and juveniles and feed annelids (worms), arthropods (copepoda, crabs, shrimps), herbivorous and omnivorous fishes. Those animals feed carnivorous fish including pelagic fish that stays above AR then form fauna. Moreover, some of fish and finfish use AR for spawning ground and close life-cycle at AR. High productivity Productivity depends on production of algae which relate to nutrition of water, sunlight, current and design of AR (height, width, thickness, surface area and m

The value of Chilean fishes in Japan market Masatoshi FUTAGAWA / CORDUNAP May 1, 2012 Market price is one of the most important factors to select culture species.  Starting from the price, establish business model which combine marketing and technology. For example, distance to market (transporting time and cost), size of market (maximum production volume which maintain market price) and potential of market expansion, products forms (live, fresh, frozen, boiled or dry), buyers (wholesalers, supermarket, restaurant or direct to individual consumer). Production location and methods are selected according to market price to take maximum profits. For example, seed production method (intensive, semi-intensive or extensive), culture methods (cage, tank or releasing) and feeds kinds (fresh, moist pellet or dry pellet). Growth speed is the very important which minimize risk and cash flow cycle during the operation.  Japan market is one of the biggest market in the world which dea