한국패류학회지 (The Korean Journal of Malacology)

한국패류학회 (The Malacological Society of Korea)
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사육 수온이 코끼리조개 Panopea japonica (A. Adams, 1850) 치패의 성장과 생존에 미치는 영향

Effect of Water Temperature Condition on Growth and Survival of Juvenile Geoduck (Panopea japonica A. Adams, 1850)

  • 남명모 (국립수산과학원 동해수산연구소) ;
  • 이주영 (국립수산과학원 동해수산연구소) ;
  • 이주 (국립수산과학원 동해수산연구소) ;
  • 강희웅 (국립수산과학원 동해수산연구소) ;
  • 김영대 (국립수산과학원 동해수산연구소) ;
  • 변순규 (국립수산과학원 동해수산연구소) ;
  • 유해균 (국립수산과학원 동해수산연구소)
  • 투고 : 2015.11.16
  • 심사 : 2015.12.30
  • 발행 : 2015.12.30
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초록

본 연구는 동해안산 코끼리조개 (Panopea japonica) 를 대량 종묘생산하기 위한 기초 연구로 사육 수온에 따른 치패의 생존율과 성장에 대해 조사하였다. 코끼리조개 치패는 외형적으로 건강한 것을 선별하여 12, 15, 18, 21, 24 그리고 $27^{\circ}C$로 설정한 인큐베이터에에서 6주간 생존과 성장을 조사하였다. 수온별 반치사시간 (median lethal time, LT50) 은 $27^{\circ}C$에서 29시간, $24^{\circ}C$에서 14.5일, $21^{\circ}C$에서 37.4일이었으며, 수온 $12^{\circ}C$, $15^{\circ}C$, $18^{\circ}C$에서는 42일간 생존율이 95.0%, 95.0%, 93.3%로 높았다. 사육 실험기간 동안 수온별 각장과 체중의 일간성장률은 $12^{\circ}C$에서는 0.100 mm, 2.212 mg, $15^{\circ}C$에서는 0.118 mm, 2.648 mg, $18^{\circ}C$에서는 0.127 mm, 2.836 mg, $21^{\circ}C$에서는 0.160 mm, 3.128 mg, 그리고 $24^{\circ}C$에서는 0.138 mm, 2.925 mg이었다. $12-21^{\circ}C$ 구간에서는 수온이 높아짐에 따라서 각장과 체중의 증가가 빨랐으며, 특히 $15-21^{\circ}C$에서 각장과 체중의 성장이 좋았다. 그러나 $21^{\circ}C$ 이상의 고수온에서는 폐사가 현저하게 증가하므로 치패 사육을 위한 수온은 $15-18^{\circ}C$가 적정한 것으로 판단된다.

This study was performed to determine the effect of water temperature condition on survival rate and growth of juvenile geoduck (Panopea japonica). Panopea japonica juveniles were bred for 6 weeks at 12, 15, 18, 21, 24 and $27^{\circ}C$ on incubator. Juveniles median lethal times (LT50) were 29 hours in $27^{\circ}C$, 14.5 day in $24^{\circ}C$, 37.4 day in $21^{\circ}C$. Survival rate of water temperature 12, 15 and $18^{\circ}C$ showed a high survival rate in 95.0%, 95.0% and 93.3% at 6 weeks. As a result of culturing for 6 weeks at 12, 15, 18, 21 and $24^{\circ}C$, a daily growth of shell length and total weight was 0.10 mm, 0.12 mm, 0.13 mm, 0.16 mm and 0.14 mm, and 2.21 mg, 2.65 mg, 2.84 mg, 3.13 mg and 2.93 mg. Juvenile shell length and total weight have significantly increased at $15-21^{\circ}C$. However, mortality rate has significantly increased at more than $21^{\circ}C$. As a result, appropriate water temperature for juveniles culturing considered $15-18^{\circ}C$.

키워드

참고문헌

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피인용 문헌

  1. Effects of temperature on early development of the New Zealand geoduck Panopea zelandica (Quoy & Gaimard, 1835) vol.51, pp.2, 2015, https://doi.org/10.1111/are.14425
  2. 코끼리조개(Panopea japonica)에서 분리되는 비브리오속 세균의 동정 vol.33, pp.2, 2015, https://doi.org/10.7847/jfp.2020.33.2.127