DOI QR코드

DOI QR Code

Underwater Observations of Spawning of Hexagrammos agrammus off the Tongyeong Coast, Korea

  • Lee, Yong-Deuk (Marine Bio-Education and Research Center, Gyeongsang National University) ;
  • Lee, Seung-Hwan (Marine Bio-Education and Research Center, Gyeongsang National University) ;
  • Gwak, Woo-Seok (Marine Bio-Education and Research Center, Gyeongsang National University)
  • Received : 2015.06.15
  • Accepted : 2015.10.06
  • Published : 2015.12.31

Abstract

We observed seasonality and other characteristics of spawning in the greenling Hexagrammos agrammus off the coast of Tongyeong. Eleven spawning grounds were identified between November, 2013 and January, 2014. The fertilized eggs of H. agrammus were assigned to developmental stages I, II, III, and IV. Based on this classification, we showed that the spawning season extended from the end of October to mid-January. H. agrammus used diverse seaweed species attached to shallow bedrock as spawning substrata that provided good camouflage. Two to seven egg masses were fertilized around the holdfasts of individual seaweeds at depths of 1.2-4.0 m. We identified species-specific reproductive traits of H. agrammus during the spawning season, including strong parental care of the fertilized eggs.

Keywords

References

  1. Chung EY and Kim SY. 1994. On the maturity and spawning of the greenling, Hexagrammos agrammus (Temminck et Schlegel). Kor J Ichthyol 6, 222-236.
  2. Chyung MK. 1977. The Fishes of Korea. Iljisa, Seoul, Korea. pp 727.
  3. Edgar GJ, Barrett NS and Morton AJ. 2004. Biases associated with the use of underwater visual census techniques to quantify the density and size-structure of fish populations. J Exp Mar Biol Ecol 308, 269-290. https://doi.org/10.1016/j.jembe.2004.03.004
  4. Fukuhara O. 1971. On the egg development and larval stage of Agrammus agrammus. Aquacul Sci 19, 159-165.
  5. Kanamoto Z. 1976. On the ecology of Hexagrammidae fish. 1) Habitats and behaviors of Agrammus agrammus (Temminck et Schlegel) and Hexagrammos otakii (Jordan et Starks). Jpn J Ecol 26, 1-12.
  6. Kim IS, Choi Y, Lee CL, Lee YJ, Kim BJ and Kim JH. 2005. Illustrated book of Korean fishes. Kyo-Hak Pub Co, Seoul, Korea. pp 615.
  7. Kim MS. 2003. Ecology of Fishes. Academy Pub Co, Seoul, Korea. pp 386.
  8. Kimura M and Munehara H. 2010. The disruption of habitat isolation among three Hexagrammos species by artificial habitat alterations that create mosaic-habitat. Ecol Res 25, 41-50. https://doi.org/10.1007/s11284-009-0624-3
  9. Kulbicki M, Sarramegna S, Letourneur Y, Wantiez L, Galzin R, Mou-Tham G, Chauvete C and Thollot P. 2007. Opening of an MPA to fishing: natural variations in the structure of a coral reef fish assemblage obscure changes due to fishing. J Exp Mar Biol Ecol 353, 145-163. https://doi.org/10.1016/j.jembe.2007.02.021
  10. Kurita Y, Sano M and Shimizu M. 1995. Reproductive cycle and body size and age at maturity of the hexagrammid fish Hexagrammos agrammus in central Japan. Fish Sci 61, 1-6. https://doi.org/10.2331/suisan.61.1
  11. Lee YP and Kang SY. 2002. A Catalogue of the Seaweeds in Korea. Cheju National University Press, Jeju, Korea, 662.
  12. Lee YD, Kim JS, Jung JH, Shim WJ and Gwak WS. 2013. Direct observations of spawning characteristics on the Hexagrammidae fishes in Korean coastal waters using SCUBA diving. J Kor Soc Oceanogr 18, 1-6.
  13. Munehara H, Kanamoto Z and Miura T. 2000. Spawning behavior and interspecific breeding in three Japanese greenlings (Hexagrammidae). Ichthyol Res 47, 287-292. https://doi.org/10.1007/BF02674252
  14. Ochiai A and Tanaka M. 1998. Ichithyology (Part II). Koseisha-koseikaku Tokyo. pp 1139.