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...
Mussel larvae production for Pacific beakfish larvae ( Oplegnathus insignis ) Masatoshi F UTAGAWA * ¹ Septiembre 17, 2012 *¹ Corporación Privada para el Desarrollo de la Universidad Arturo Prat, CORDUNAP, Iquique, Chile Mussel larva shows 50 m m approximately and swims freely. The size is ideal for primary live feeds for O. insignis larva. Mussel larvae are fed at density 50 larvae/ml with 6 hours interval from Day 3 to 10. Additionally, the larva has advantages of well nutrition and easy production. This method produces 30 million mussel larvae from a female at 30 hours after fertilization. The larvae survive until D2 and eggs settle on larva tank within 6 hours approximately. 1. Mussel gonad shows that male has cream color and female has coffee color. 2. Insert knife below the hinge, cut ligament and open shells. Press male gonad to release sperm and keep in bucket (A) with 10 L of ...
Regeneration and enhancement of coastal resources with marine ranching in Chile Masatoshi FUTAGAWA / CORDUNAP June 19, 2012 Marine coastal resource is reducing since last few decades due to over fishing of high value shellfish and finfish. Exhaust of those resources broke ecosystem of coastal organisms like un-useful species take over the place of exhausted species and irregular ecosystem reduces productivity and biodiversity then costal resources are shrinking rapidly. We should work for the program which regenerate ecosystem and enhance productivity after recovering ecosystem. Marine ranching program is ideal to regenerate ecosystem and maintain it sustainably which consist seed releasing, artificial reef installation and area management. The program applying in Japan almost half century and some resources were regenerated and enhancing with useful information. I recommend applying the program in Chile which domesticate to local condition. The program is operated by fishe...
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