Effect of n-3HUFA-Chlorella Supplied to Rearing Tank on Morphogenesis of Swimming Crab Zoeas of the Portunus trituberculatus (Brachyura: Portunidae)
ガザミ幼生の形態に及ぼす飼育水へのn‐3高度不飽和脂肪酸含有淡水クロレラ添加の影響

Daisuke ARAI, Toshio TAKEUCHI, Daisuke SUGITA, Katsuyuki HAMASAKI, Keigo MARUYAMA
2007 Aquaculture Science  
This study was conducted to examine the supplemental effect of n-3HUFA-Chlorella to rearing water on morphogenesis of swimming crab Portunus trituberculatus (Brachyura: Portunidae) zoeas. The longer supplementation with n-3HUFA-Chlorella conduced to excess morphogenesis of megalop at the fourth zoea stage, inhibiting normal metamorphosis from zoea to megalop. The longer supplementation also induced higher carcass DHA content of forth stage zoea. These suggests that n-3HUFA-Chlorella
more » ... ion and carcass DHA content relate high mortality occurred at the metamorphosis from zoea to megalop.
doi:10.11233/aquaculturesci1953.55.133 fatcat:in6ywasleng6bhkafe46bj2ria