Quality changes of fish larvae through manipulation of feeding regimes and their mechanisms.

通过选择、繁殖和野外取样进行了动物标本的培养收集。通过将它们喂给五种海鱼幼体，得到了以下结果：1）与卤虫相比，投喂半咸水枝藻Celebensis的日本比目鱼幼虫生长更好，2）当投喂小体型动物时，投喂具有较小嘴的鱼类幼虫，如七带石斑鱼、锈神仙鱼和隆头鱼，最有效地摄取了微小轮虫Proales similis。这些幼虫根据其生长情况改变对较大食物的偏好，从而导致更好的生长和存活。日本鳗鲡仔鱼（口大，咽窄）也能摄食相似伪线虫。成功地将HUFA富集到相似假单胞菌中，可以采用分批培养的方法进行大量培养。

Culture collection of zooplanktons has been conducted through selection, breeding and field sampling. By feeding them to five species of marine fish larvae, the following findings have been obtained ; 1) Japanese flounder larvae grew better by feeding brackish cladoceran Diaphanosoma celebensis, comparing to the feeding of Artemia franciscana, 2) When small sized zooplanktons were fed to fish larvae with smaller mouth such as seven-band grouper, rusty angelfish, and humphead wrasse, the minute rotifer Proales similis was ingested most efficiently. These larvae shifted preference to larger food according to their growth, and resulting in better growth and survival. Japanese eel larvae(large mouth, but narrow pharynx) could also ingest P. similis. HUFA was successfully enriched to P. similis, and its mass culture could be conducted using batch culture method.