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보리고래(Balaenoptera borealis) 수염판의 안정동위원소 δ13C와 δ15N 값 분석을 통한 성장단계 규명

Identification of Growth Stages of the Sei Whale Balaenoptera borealis through Stable Isotope Analysis of δ13C and δ15N Values in Baleen Plates

  • 이다솜 (국립수산과학원 고래연구소) ;
  • 신동훈 (국립수산과학원 수산자원연구센터) ;
  • 김명준 (국립수산과학원 수산자원연구센터) ;
  • 이경리 (국립수산과학원 고래연구소)
  • Dasom Lee (Cetacean Research Institute, National Institute of Fisheries Science) ;
  • Donghoon Shin (Fisheries Resources Research Center, National Institute of Fisheries Science) ;
  • Myung-joon Kim (Fisheries Resources Research Center, National Institute of Fisheries Science) ;
  • Kyunglee Lee (Cetacean Research Institute, National Institute of Fisheries Science)
  • 투고 : 2024.09.11
  • 심사 : 2024.10.08
  • 발행 : 2024.10.31

초록

The baleen plates of mysticetes provide valuable insights into their recent foraging activities through stable isotope analyses, with variations in carbon and nitrogen isotopic compositions allowing for the reconstruction of seasonal migration patterns. In March 2023, a sei whale Balaenoptera borealis carcass was stranded off the coast of Buan, Jeonbuk, in the Yellow Sea, Korea. The whale was a young male, measuring 9.39 m in length. The total length of its baleen plate was approximately 34 cm, with δ13C values ranging from -20.9 to -18.8‰, and δ15N values ranging from 8.5 to 12.0‰. The variations in carbon and nitrogen isotopes were as much as 1.26‰ and 1.94‰, respectively. No significant periodicity was observed in the stable isotope fluctuations, which may be attributable to the age of the whale. However, when compared with previous studies on stable isotope analyses of sei whale baleen plates, this study showed similar patterns, as the δ13C values gradually increased and δ15N values decreased. The period during which these two isotope values crossed probably reflects the weaning phase of the whale.

키워드

과제정보

본 연구는 국립수산과학원 2024년도 수산시험연구사업 중 고래류 평가 및 관리 연구(R2024004)의 지원을 받아 수행되었습니다. 조사에 참여한 모든 연구원께 감사합니다.

참고문헌

  1. Cooke JG. 2018. Balaenoptera borealis. The IUCN Red List of Threatened Species 2018: e.T2475A130482064. Retrieved from https://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T2475A130482064.en on Aug 30, 2024. 
  2. Horwood J. 2009. Sei whale: Balaenoptera borealis. In: Encyclopedia of Marine Mammals, 2nd edition. Perrin WF, Wursig B and Thewissen JGM, eds. Academic Press, Cambridge, MA, U.S.A., 1001-1003. https://doi.org/10.1016/B978-0-12-373553-9.00231-5. 
  3. IWC (International Whaling Commission). 2024. International Whaling Commission. Retrieved from https://iwc.int/aboutwhales/whale-species/sei-whale on Sep 28, 2024. 
  4. Jefferson TA, Webber MA and Pitman RL. 2015. 4-Cetaceans. Marine Mammals of the World, 2nd edition. Jefferson TA, Webber MA and Pitman RL, eds. Academic Press, Cambridge, MA, U.S.A., 24-357. https://doi.org/10.1016/B978-0-12-409542-7.50004-4. 
  5. Lee SH, Schell DM, McDonald TL and Richardson WJ. 2005. Regional and seasonal feeding by bowhead whales Balaena mysticetus as indicated by stable isotope ratios. Mar Ecol Prog Ser 285, 271-287. https://doi.org/10.3354/meps285271. 
  6. Lockyer C. 1974. Investigation of the ear plug of the southern sei whale, Balaenoptera borealis, as a valid means of determining age. ICES J Mar Sci 36, 71-81. https://doi.org/10.1093/icesjms/36.1.71. 
  7. Mitani Y, Bando T, Takai N and Sakamoto W. 2006. Patterns of stable carbon and nitrogen isotopes in the baleen of common minke whale Balaenoptera acutorostrata from the western North Pacific. Fish Sci 72, 69-76. https://doi.org/10.1111/j.1444-2906.2006.01118.x. 
  8. Nishiwaki M, Hibiya T and Kimura S. 1954. On the sexual maturity of the sei whale of the Bonin waters. Sci Rep Whales Res Inst 9, 165-178. 
  9. Omura Hand Fujino K. 1954. Sei whales in the adjacent waters of Japan. II. Further studies on the external characters. Sci Rep Whales Res Inst 9, 89-103.
  10. Peterson BJ and Fry B. 1987. Stable isotopes in ecosystem studies. Annu Rev Ecol Syst 18, 293-320. https://doi.org/10.1146/annurev.es.18.110187.001453. 
  11. Reiss L, Haussermann V and Mayr C. 2020. Stable isotope records of sei whale baleens from Chilean Patagonia as archives for feeding and migration behavior. Ecol Evol 10, 808-818. https://doi.org/10.1002/ece3.5939. 
  12. Rita D, Borrell A, V'ikingsson G and Aguilar A. 2019. Histological structure of baleen plates and its relevance to sampling for stable isotope studies. Mamm Biol 99, 63-70. https://doi.org/10.1016/j.mambio.2019.10.004. 
  13. Rita D, Drago M, Galimberti F and Cardona L. 2017. Temporal consistency of individual trophic specialization in southern elephant seals Mirounga leonina. Mar Ecol Prog Ser 585, 229-242. https://doi.org/10.3354/meps12411. 
  14. Rubenstein DR and Hobson KA. 2004. From birds to butterflies: Animal movement patterns and stable isotopes. Trends Ecol Evol 19, 256-263. https://doi.org/10.1016/j.tree.2004.03.017. 
  15. Schell DM, Saupe SM and Haubenstock N. 1989. Bowhead whale (Balaena mysticetus) growth and feeding as estimated by δ13C techniques. Mar Biol 103, 433-443. https://doi.org/10.1007/BF00399575. 
  16. Teixeira CR, Troina GC, Daura-Jorge FG, Simoes-Lopes PC and Botta S. 2022. A practical guide on stable isotope analysis for cetacean research. Mar Mamm Sci 38, 1200-1228. https://doi.org/10.1111/mms.12911.