@article{oai:mie-u.repo.nii.ac.jp:00005832,
 author = {Cavalli, Ronaldo O. and 柏木, 正彰 and Kashiwagi, Masaaki and 岩井, 寿夫 and Iwai, Toshio},
 journal = {三重大学生物資源学部紀要 = The bulletin of the Faculty of Bioresources, Mie University},
 month = {Dec},
 note = {application/pdf, The etfect of temperature on the egg hatehing rate, yolk utilization and growth of larval Japanese flounder Paralichthys olivaceus was studied to determine optimal rearing conditions. During the yolk sac phase (from spawning to total yolk absorption) rearing temperatures were maintained at 12, 15 and 18 ℃. Larvae kept at 12 and 15℃ presented higher viable egg hatching rates,  while survival to total yolk absorption was higher for larvae kept at 15℃ (p<0.05). Total length at hatching was significantly longer for larvae maintained at l8℃ than for those kept at 12 and 15℃(p<0.05). This was due to the higher yolk absorption rate during incubation observed for the 18℃ group. At the end of the yolk sac phase however, larvae kept at 12 and 15 ℃ were longer than those at 18 ℃ (p<0.05). Efficieney of yolk conversion was estimated at 25.56, 24.93, and 23.13 mm/cal for the 12, 15, and 18℃ groups, respectively. As longer larvae should result in more successful initial feeding, a temperature regimen of 15℃ is expected to improve the growth and early development of P.olivaceus through a more efficient use of its yolk reserves., ヒラメの卵および仔魚の飼育における最適条件を明らかにするために，受精卵と卵黄仔魚を水温12，15および18℃
で飼育し，これらの温度が卵の孵化率および仔魚の卵黄利用と成長に及ぼす影響について検討した。卵の正常孵化率
は12℃と15℃において高く，卵黄吸収完了までの仔魚期の生残率は15℃において最も高かった（p＜0.05）。また，
孵化時の仔魚の全長は18℃のものが12℃と15℃のものより大であったが（p＜0.05），卵黄吸収完了時の仔魚の全長
は反対に，12℃と15℃の方が大であった（p＜0.05）。12，15，18℃における卵黄転換効率はそれぞれ25.56，24.93，23.13mm/calであった。卵黄を吸収して摂餌を開始する仔魚にとって，そのサイズが大きいということは摂餌戦略の面で有利である。以上の結果の総合的判断から，ヒラメの卵および仔魚の飼育における最適温度は15℃と推定される。},
 pages = {13--20},
 title = {Yolk Utilization and Growth of Larvae of Japanese　Flounder　Paralichthys oliv aceus at Different Tem peratures},
 volume = {19},
 year = {1997}
}