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Annual Reproductive Cycle of Acheilognathus rhombeus, in Korea

  • Ki, Se-Un (Dept. of Aquaculture, Chonnam National University) ;
  • Kho, Kang-Hee (Dept. of Aquaculture, Chonnam National University) ;
  • Lee, Won-Kyo (Dept. of Aquaculture, Chonnam National University)
  • Received : 2019.09.20
  • Accepted : 2019.10.18
  • Published : 2019.12.31

Abstract

In this study, an experiment was conducted to investigate the annual reproductive cycle of a Korean flat bittering, Acheilognathus rhombeus, from Ogok-myeon located in Seomjin River. The reproductive cycle was examined histologically regarding water temperature and day length of the habitat, the gonadosomatic index (GSI), and developmental characteristics of female and male gonads. The maximum GSI was found to be 3.50±0.53 and 1.36±0.14 for females and males, respectively, when the water temperature and day light was 16.9℃ and 11.3 hours, respectively in October 2018. On the other hand, the minimum GSI was found to be 0.16±0.09 and 0.69±0.15 for males and females in December 2018 and February 2019, respectively. The ovipositor of females appeared from August to November 2018. We compared and calculated the stages of germ cell developmental characteristics in the testis and ovaries to determine the reproductive cycle. According to the result, we classified the female A. rhombeus reproductive cycle into four phases, which are ripe and spawning phase (October), degenerative phase (November to December), growing phase (January to March) and mature phase (April to September). The annual reproductive cycle of male A. rhombeus was categorized into four phases: mature phase (June to October), degenerative phase (November to March), resting phase (April) and growing phase (May). The Korean flat bittering is an autumn-spawner as the main spawning season in October. In male, testicular spermatogonia appeared all year-round, and the ripe and releasing phase, which is characteristics of the spawning season in other fish, did not appear.

Keywords

References

  1. An CM (1995) Reproductive cycle of the spring-spawning bitterling, Rhodeus uyekii (Pisces: Cyprinidae). Korean J Ichthyol 7:33-42.
  2. Aida K (1991) Environmental regulation of reproductive rhythms in teleostes. Bull Inst Zool Acad Sin Monogr 16:173-187.
  3. Asahina K, Hanyu I, Iwashita I, Hibiya K (1980) Annual reproductive cycle of a bittering, Rhodeus ocellatus ocellatus. Bull Jpn Soc Sci Fish 46:299-305. https://doi.org/10.2331/suisan.46.299
  4. Baek HM, Song HB, Kwon OK (2003) Sexual maturation and the spawning season of the Korean bitterling, Acheilognathus signifier in upper reaches of the Hongcheon River. Korean J Ichthyol 15:278-288.
  5. Jin YG, Kim CH, Lee CW, Kim JW, Lee JS (2008) Change of external reproductive parameters according to sexual maturation of the striped bitterling, Acheilognathus yamatsutae (Teleostei: Acheilognathinae). Korean J Ichthyol 20:13-20.
  6. Jeong SY, Shin SH, Jin YG, Ju SM, Lee JS (2006) Abnormality of reproduction and organ structure of the oily bitterling, Acheilognathus koreensis from Isa stream. Korean J Ichthyol 18:87-96.
  7. Ki SU, Lee WK (2018) The annual reproductive cycle of Silurus microdorsalis, a Korean endemic species. Dev Reprod 22:1-8. https://doi.org/10.12717/DR.2018.22.1.001
  8. Kim IS, Choi Y, Lee CL, Lee YJ, Kim BJ, Kim JH (2005) Illustrated Book of Korean Fishes. Kyohak, Seoul, p 615.
  9. Lee TY, Hanyu I, Furukawa K (1984) Effects of photoperiod and temperature on the gonadal activity in small filefish, Rudarius ercodes. Korean J Fish Aquat Sci 17:523-528.
  10. Lim JY, Lee WK (2017) Annual reproductive cycle of Acheilognathus majusculus, a Korean endemic species. Dev Reprod 21:297-305. https://doi.org/10.12717/DR.2017.21.3.297
  11. N' Da K, Deniel C (1993) Sexual cycle and seasonal changes in the ovary of the red mullet, Mullus surmuletus, from the southern coast of Brittany. J Fish Biol 43:229-244. https://doi.org/10.1111/j.1095-8649.1993.tb00425.x
  12. Shimizu A, Aida K, Hanyu I (1987) Annual reproductive cycle in an autumn-spawning bitterling Acheilognathus rhombea. Bull Jpn Soc Sci Fish 53:529-536. https://doi.org/10.2331/suisan.53.529
  13. Shimizu A, Aida K, Hanyu I (1994) Effects of photoperiod and temperature on gonadal activity and plasma steroid levels in an autumn-spawning bitterling, Acheilognathus rhombea, during different phase of its annual reproductive cycle. Gen Comp Endocrinol 93:137-150. https://doi.org/10.1006/gcen.1994.1016
  14. Shimizu A, Hanyu I (1981) Annual reproductive cycle of a spring-spawning bittering, Acheilognathus tabira. Bull Jpn Soc Sci Fish 48:1563-1568. https://doi.org/10.2331/suisan.48.1563
  15. Shimizu A, Hanyu I (1993) Factors involved in the development of and decline in photoperiodism as it relates to the gonadal activity of spring-spawning bitterling, Acheilognathus tabira. J Exp Zool 265:134-143. https://doi.org/10.1002/jez.1402650205
  16. Song HB, Kwon OK (1989) Study on the deposition and development characters of Acheilognathus yamatsutae Mori (Cyprinidae) from the lake Uiam. Korea J Limnol 22:51-70.
  17. Wallace RA, Selman K (1981) Cellular and dynamic aspects of oocyte growth in teleosts. Am Zool 21:325-343. https://doi.org/10.1093/icb/21.2.325