Regulation of Copulation and Parturition in Black Rockfish, Sebastes Schlegeli by Photoperiod and Temperature

광주기와 수온에 의한 조피볼락, Sebastes schlegeli의 교미 및 출산 조절

  • Park, Moo-Eog (Fisheries Resources Development Institute) ;
  • Rho, Sum (Faculty of Applied Marine Science, Cheju National University) ;
  • Byun, Soo-Cheol (Marine Research Institute, Cheju National University) ;
  • Lee, Chi-Hoon (Marine Research Institute, Cheju National University) ;
  • Baek, Hea-Ja (Department of Marine Biology, Pukyong University) ;
  • Lee, Young-Don (Marine Research Institute, Cheju National University) ;
  • Kim, Hyung-Bae (Department of Fisheries Development, Kangwon Province University)
  • 박무억 (수산자원개발연구소) ;
  • 노섬 (제주대학교 해양생산과학부) ;
  • 변수철 (제주대학교 해양연구소) ;
  • 이치훈 (제주대학교 해양연구소) ;
  • 백혜자 (부경대학교 해양생물학과) ;
  • 이영돈 (제주대학교 해양연구소) ;
  • 김형배 (강원도립대학 수산개발과)
  • Published : 2001.09.01

Abstract

Regulation of copulation and parturition of black rockfish, Sebastes schlegeli were induced by artificially controlled photoperiod and temperature. for the treated group, daylength of copulation and parturition period was maintained at 9L : 15D and 14L : l0D, respectively. Temperature was maintained at 12~13$^{\circ}C$ during the copulation period, and at 14~15$^{\circ}C$ during the parturition period. Gonadosomatic index (GSI) of male was low 0.12 from January to August and peak to 1.36~0.10 during November in the control group but 1.27 ~ 0.05 during October in treated group. GSI of female was about 1.82 from January to November 1996 and reached the maximum of 46.5 ~ 5.72 during April 1997 in the control group but 42.0~4.24 during february 1997 in the treated group. The pattern of ovary and testis development did not much differ between the treated and control groups. However, the copulation and parturition of black rockfish could be advance 2~3 months by controlling photoperiod and temperature.

광주기와 수온의 인위제어에 따른 조피볼락, S. schlegeli의 교미 및 출산 조절을 번식생물학적으로 조사하였다. 어미의 출산유도 사육실험은 자연조건의 대조구와 광.수온 조절의 실험구로 나누어 사육하였다. 실험구에 있어서 광주기 조절은 교미시기에 9L:15D, 출산시기에는 14L:10D로 조절하였다. 수온 조절은 교미시기 12~13$^{\circ}C$, 출산시기에 14~15$^{\circ}C$로 조절하였다. 수컷의 GSI는 1996년 4월에서 8월까지 딱 0.12로 낮은 값을 유지하였고, 대조구는 11월에 1.36$\pm$0.10, 실험구에서는 10월에 1.27$\pm$0.05로 각각 최대값에 달하였다. 암컷의 GSI는 1996년 1월에서 11월까지 약 1.82로 낮은 값을 유지하였고, 대로구는 4월에 46.5$\pm$5.72, 실험구는 1997년 2월에 42.0$\pm$4.24로 각각 최대값을 가졌다. 광주기와 수온을 조절한 실험구는 정소와 난소의발달 양상이 대조구와 유사하였으나, 교미와 출산은 2~3개월 앞당길 수 있었다.

Keywords

References

  1. J. Korean Fish. Soc. v.31 no.4 Annual reproductive cycle and embryonic development within the maternal body of the marbled rockfish, Sebastiscus marmoratus from the Cheju Island Bae, H.C.;S.C. Chung;J.J. Lee;Y.D. Lee
  2. Bull. Korean Fish. Soc. v.18 no.3 Experiment studies on the mechanism of reproductive cycle in the longchim goby, Chasmichthys dolichognathus (HILGENDORF) Baek, H.J.;T.Y. Lee
  3. J. Korean Fish. Soc. v.33 no.5 Reproductive cycle of a rockfish, Sebastes schlegeli Baek, J.M.;H. Kim;D.J. Kim;C.W. Park;K. Aida
  4. Dordrecht Rockfishes of the Genus Sebastes. their reproduction and early life history Boehlert, G.W.;J. Yamada
  5. Env. Biol. Fish. v.8 Effects of temperature, ration, and fish size on growth of juvenile black rockfish, Sebastes schlegeli Boehlert, G.W.;M.M. Yoklavich
  6. J. Aquaculture v.8 no.1 Gonadal maturation and reproductive cycle in oblong rockfish, Sebastes oblongus Chang, Y.J.;H.K. Lim;S.G. Byun
  7. J. Fish. Biol. v.4 Environmental control of teleost reproductive cycles;a brief review De Vlaming, V.L.
  8. Fish. Bull. v.70 no.4 The effects of temperature and photoperiod on reproductive cycling in the estuarine gobbid fish, Gillichthys mirabilis De Vlaming, V.L.
  9. Biol. Bull. v.148 Effects of the photoperiod and temperature on gonadal activity in the cyprinid teleost, Notemigonus crysoleucas De Vlaming, V.L.
  10. Proc. U.S. Nat. Mus. v.15 The fishes of San Diego Califonia Eigenmann, C.H.
  11. Bull. Fac. Fish. Hokkaido Univ. v.19 Ecological studies on a marine ovoviviparous teleost, Sebastes taczanowskii (Steindachner)Ⅰ. Seasonal changes of the testis Igarashi, T.
  12. J. Korean Fish. Soc. v.29 no.1 Copulation and embryonic development of the viviparous teleost surfperch, Ditrema temmincki Lee, J.S.;C.M. An;P. Chin.
  13. Bull. Korean Fish. Soc. v.17 no.6 Effects of photoperiod and temperature on the gonadal activity in small filefish, Rudarius ercodes Lee, T.Y.;I. Hanyu;K. Furukawa.
  14. Bull. Korean Fish. Soc. v.25 no.5 Reproduction and embryonic development within the maternal body of ovoviviparous teleost, Sebastes inermis Lee, T.Y.;S.Y. Kim.
  15. Can. J. Zool. v.58 Influence of photoperiod on growth in Baltic salmon parr (Salmo salar L.) with special reference to the effect of precocious sexual maturation Lundquist, H.
  16. Biol. Bull. v.84 The reproductive cycle of the viviparous teleost, Neotoca bilineata. A number of the family Goodeidae. Ⅳ. The germinal tissue Mendoza, G.
  17. J. Comp. Physiol. A. v.183 Photoperiodic history determines the reproductive response of rainbow trout to changes in daylength Randall, C.F.;N.R. Bromage
  18. Rapp. Cons. Explor. Mer. v.150 The redfish;gametogenesis and migration of the Sebastes marinus (L.) and Sebastes mentella Travin. Sorokin, V.P.
  19. Env. Biol. Fish. v.30 Staging and the time course of embryonic development in Kurosoi, Sebastes schlegeli Yamada, J.;M. Kusakari
  20. Bull. Jap. Soc. Fish. Oceanogr. v.63 no.3 Effects of water temperature and photoperiod on maturation in the Ise Bay population of Japansese sand lance, Ammodytes personatus Yamada, J.;M. Kuno