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...
Development of loco seed production at North of Chile Masatoshi FUTAGAWA September 19, 2016 Our project, between UNAP and regional government of Tarapaca chile, develop mas seed production method of loco ( Concholepas concholepas ) in order to recover loco natural resources from 2013 to 2015. We completed the method that broodstock rearing, maturation and capsule incubation. Hatch-out larvae are produced all year round constantly and over 200 million of hatch-out larvae are released to our coast. Also we produced some larvae which grew more than 130 days after hatch-out with clear water which filtered, disinfect ed by UV and sterilized with autoclave . However, we couldn’t develop mass seed production method. The mass seed production technology is under studying by decades and aim is not accomplish yet in Chile . Because of the following reasons make hard to achieve. Loco larvae has four month planktonic period (veliger stage) that very long period c...
I published the preliminary morphological study of Pacific beakfish ( Oplegnathus insignis ) from larva to juvenile at North of Chile. Full text at my archive . Abstract The project of "Optimizacion de la Tecnlogia de Produccion de juveniles de San Pedro ( Oplegnathus insignis )" is running under INNOVA CORFO and CORDUNAP since 2006 and the object is to optimize seed production technique about O. insignis . The project produced some juveniles in 2007 and it had some knowledge of the fish. This paper informs the morphological changes of O. insignis from larva to juvenile. The newly hatch-out larva shows TL 2.58+-0.13 mm, it has oval ball yolk and spherical oil droplet. Oral cavity open without teeth and eye structure develop on Day 2 which color turn to black. At Day 3, larva shapes fusiform and head develop with jaws and teeth. Pectoral fins grow and fin fold is constructed at caudal peduncle part. Hypural bone shapes triangle on Day 41 approximately. Body depth in...
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