Development of marine fin-fish seed production technique.
What happing in Japan?
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I watch Japanese TV program everyday through internet. There are many problems happening, like radiation and refugees. Even so, we stand recovering stage after surviving face.
However, I worry about misunderstanding of non-Japanese due to different culture and language. I will introduce a blog site which inform properly by English as follows.
Reduction of coastal fish resources is common problem in the whole world due to overfishing. Qn the other hand, demand is rising due to health consciousness (less cholesterol), contamination of chicken (influenza), cow (BSE) and pork (HEV). Marine ranching is the one of solution to recovering coastal fish resources which has operated in Japan more than four decades. The result shows that some fishes are recovered, even increased, and contribute benefits. Chile coast water has higher productivity compare to Japan and the method produce more fishes quickly. It may create new business model which has less energy consumption, no contamination and sustainable production, and create employment at rural area. 1. What is Marine ranching 1.1. Idea and activities General ideas of marine ranching are releasing fish juvenile dismissing species int...
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 ...
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, thick...
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