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Ocean Science Journal

, Volume 53, Issue 1, pp 53–62 | Cite as

Behavior and Frequency Analysis of Aurelia aurita by Using in situ Target Strength at a Port in Southwestern Korea

  • Eun-A Yoon
  • Doo-Jin Hwang
  • Jinho Chae
  • Won Duk Yoon
  • Kyounghoon Lee
Article

Abstract

This study was carried out to determine the in situ target strength and behavioral characteristics of moon jellyfish (Aurelia aurita) using two frequencies (38 and 120 kHz) that present a 2- frequency-difference method for distinguishing A. aurita from other marine planktonic organisms. The average TS was shown as -71.9~ -67.9 dB at 38 kHz and -75.5~-66.0 dB at 120 kHz and the average ΔMVBS120-38 kHz was similar at -1.5~3.5 dB. The TS values varied in a range of about 14 dB from -83.3 and -69.0 dB depending on the pulsation of A. aurita. The species moved in a range of -0.1~1.0 m and they mostly moved horizontally with moving speeds of 0.3~0.6 m·s-1. The TS and behavioral characteristics of A. aurita can distinguish the species from others. The acoustic technology can also contribute to understanding the distribution and abundance of the species.

Keywords

behavioral characteristics target strength frequency analysis Aurelia aurita 2-frequency-difference method 

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References

  1. Alvarez Colombo G, Benović A, Malej A, Lučić D, Makovec T, Onofri V, Acha M, Madirolas A, Mianzan H (2009) Acoustic survey of a jellyfish-dominated ecosystem (Mljet Island, Croatia). Hydrobiologia 616:99–111CrossRefGoogle Scholar
  2. Aoki K, Yamada S, Toyokawa M, Yasuda A, Kikuchi T (2012) Horizontal distribution and growth of jellyfish, Aurelia aurita (Linnaeus 1758) sensu lato, in Mikawa Bay, Japan. Coast Mar Sci 35:103–111Google Scholar
  3. Båmstedt U, Kaartvedt S, Youngbluth M (2003) An evaluation of acoustic and video methods to estimate the abundance and vertical distribution of jellyfish. J Plankton Res 25:1307–1318CrossRefGoogle Scholar
  4. Brierley AS, Axelsen BE, Boyer DC, Lynam CP, Didcock CA, Boyer HJ, Sparks CAJ, Purcell JE, Gibbons MJ (2004) Single-target echo detections of jellyfish. ICES J Mar Sci 61:383–393CrossRefGoogle Scholar
  5. Bortz L, Cheung WWL, Kleisner K, Pakhomov E, Pauly D (2012) Increasing jellyfish populations: trends in Large Marine Ecosystems. Hydrobiologia 690:3–20CrossRefGoogle Scholar
  6. Demer DA, Soule MA, Hewitt RP (1999) A multiple-frequency method for potentially improving the accuracy and precision of in situ target strength measurements. J Acoust Soc Am 105:2359–2376CrossRefGoogle Scholar
  7. Dong Z, Liu D, Keesing JK (2010) Jellyfish blooms in China: dominant species, causes and consequences. Mar Pollut Bull 60:954–963CrossRefGoogle Scholar
  8. Graham TR, Harvey JT, Benson SR, Renfree JS, Demer DA (2010) The acoustic identification and enumeration of scyphozoan jellyfish, prey for leatherback sea turtles (Dermochelys coriacea), off central California. ICES J Mar Sci 67:1739–1748CrossRefGoogle Scholar
  9. Han CH, Uye S (2010) Combined effects of food supply and temperature on asexual reproduction and somatic growth of polyps of the common jellyfish Aurelia aurita s.l.. Plank Benth Res 5:98–105CrossRefGoogle Scholar
  10. Hamner WM, Hamner PP, Strand SW (1994) Sun-compass migration by Aurelia aurita (Scyphozoa): population retention and reproduction in Saanich Inlet, British Columbia. Mar Biol 119:347–356CrossRefGoogle Scholar
  11. Hirose M, Mukai T, Hwang DJ, Iida K (2009) The acoustic characteristics of three jellyfish species: Nemopilema nomurai, Cyanea nozakii, and Aurelia aurita. ICES J Mar Sci 66:1233–1237CrossRefGoogle Scholar
  12. Ishii H, Ohba T, Kobayashi T (2008) Effects of low dissolved oxygen on planula settlement, polyp growth and asexual reproduction of Aurelia aurita. Plank Benth Res 3(Suppl): 107–113CrossRefGoogle Scholar
  13. Kaartvedt S, Klevjer TA, Torgersen T, Sørnes TA, Røstad A (2007) Diel vertical migration of individual jellyfish (Periphylla periphylla). Limnol Oceanogr 52:975–983CrossRefGoogle Scholar
  14. Kang DH, Kim JH, Lim SH (2010) Acoustic target strength characteristics of two species of multiple jellyfishes, Aurelia aurita and Cyanea nozakii, in the Southern Coast of Korea. Ocean Polar Res 32:113–122CrossRefGoogle Scholar
  15. Kang MH, Furusawa M, Miyashita K (2002) Effective and accurate use of difference in mean volume backscattering strength to identify fish and plankton. ICES J Mar Sci 59:794–804CrossRefGoogle Scholar
  16. Kawahara M, Ohtsu K, Uye SI (2013) Bloom or non-bloom in the giant jellyfish Nemopilema nomurai (Scyphozoa: Rhizostomeae): roles of dormant podocysts. J Plankton Res 35:213–217CrossRefGoogle Scholar
  17. Klevjer TA, Kaartvedt S, Båmstedt U (2009) In situ behaviour and acoustic properties of the deep living jellyfish Periphylla periphylla. J Plankton Res 31:793–803CrossRefGoogle Scholar
  18. KOOFS (2009) Korea real time database for NEAR-GOOS. http://www.khoa.go.kr/koofs/kor/observation/obs_real.do Accessed 18 June 2009Google Scholar
  19. Lee KH, Kim IO, Yoon WD, Shin JK, An HC (2007) A study on vertical distribution observation of giant jellyfish (Nemopilema Nomurai) using acoustical and optical methods. J Kor Soc Fish Tech 43:355–361CrossRefGoogle Scholar
  20. Lynam CP (2006) Ecological and acoustic investigations of jellyfish (Scyphozoa and Hydrozoa). Ph.D. Thesis, University of St Andrews, 255 pGoogle Scholar
  21. Lynam CP, Hay SJ, Brierley AS (2005) Jellyfish abundance and climatic variation: contrasting responses in oceanographically distinct regions of the North Sea, and possible implications for fisheries. J Mar Biol Assoc UK 85:435–450CrossRefGoogle Scholar
  22. Lucas CH (2001) Reproduction and life history strategies of the common jellyfish, Aurelia aurita, in relation to its ambient environment. Hydrobiologia 451:229–246CrossRefGoogle Scholar
  23. Monger BC, Chinniah-Chandy S, Meir E, Billings S, Greene CH, Wiebe PH (1998) Sound scattering by the gelatinous zooplankters Aequorea victoria and Pleurobrachia bachei. Deep-Sea Res Pt II 45:1255–1271CrossRefGoogle Scholar
  24. Miyashita K, Aoki I, Seno K, Taki K, Ogishima T (1997) Acoustic identification of isada krill, Euphausia pacifica Hansen, off the Sanriku coast, north-eastern Japan. Fish Oceanogr 6:266–271CrossRefGoogle Scholar
  25. Mukai T, Hirose M, Sawada K, Takahashi H, Iida K (2009) Target strength of moonjelly -variations with pulsation and posture-. In: Proceedings of meeting of the Marine Acoustic Society of Japan 2009, Tokyo, Japan, 18–19 May, pp 19–22Google Scholar
  26. Murase H, Ichihara M, Yasuma H, Watanabe H, Yonezaki S, Nagashima H, Kawahara S, Miyashita K (2009) Acoustic characterization of biological backscatterings in the Kuroshio- Oyashio inter-frontal zone and subarctic waters of the western North Pacific in spring. Fish Oceanogr 18:386–401CrossRefGoogle Scholar
  27. Mutlu E (1996) Target strength of the common jellyfish (Aurelia aurita): a preliminary experimental study with a dual-beam acoustic system. ICES J Mar Sci 53:309–311CrossRefGoogle Scholar
  28. Mutlu E (2001) Distribution and abundance of moon jellyfish (Aurelia aurita) and its zooplankton food in the Black Sea. Mar Biol 138:329–339CrossRefGoogle Scholar
  29. Safruddin Kawauchi Y, Ito Y, Minami K, Itaya K, Maeda K, Matsukura R, Abe K, Yasuma H, Miyashit K (2013) Tilt angle and theoretical target strength of the japanese sandeel, Ammodytes personatus, captured on the Northern Coast of Hokkaido. J Marine Acoust Soc Jpn 40:329–338CrossRefGoogle Scholar
  30. Toyokawa M, Furota T, Terazaki M (2000) Life history and seasonal abundance of Aurelia aurita medusae in Tokyo Bay, Japan. Plankton Biol Ecol 47:48–58Google Scholar
  31. Uye S (2008) Blooms of the giant jellyfish Nemopilema Nomurai: a threat to the fisheries sustainability of the East Asian Marginal Seas. Plank Benth Res 3(Suppl):125–131CrossRefGoogle Scholar
  32. Uye S, Ikeda H, Takaio M, Okawachi H, Yoshida A (2010) Spatiotemporal distribution of the giant jellyfish Nemopilema Nomurai in East Asian waters by sighting survey from ferry in 2010. In: The 7th Korea-Japan-China Jellyfish International Workshop, Gyeongju, Korea, 20–22 Dec 2010Google Scholar
  33. Uye S (2011) Human forcing of the copepod–fish–jellyfish triangular trophic relationship. Hydrobiologia 666:71–83CrossRefGoogle Scholar
  34. Yoon EA, Hwang DJ, Hirose M, Kim EH, Mukai T, Park BS (2010) Characteristics of acoustic scattering according to pulsation of the large jellyfish Nemopilema nomurai. Korean J Fish Aquat Sci 43:551–556Google Scholar
  35. Zhang F, Sun S, Jin X, Li C (2012) Associations of large jellyfish distributions with temperature and salinity in the Yellow Sea and East China Sea. Hydrobiologia 690:81–96CrossRefGoogle Scholar

Copyright information

© Korea Institute of Ocean Science & Technology (KIOST) and the Korean Society of Oceanography (KSO) and Springer Science+Business Media B.V., part of Springer Nature 2017

Authors and Affiliations

  • Eun-A Yoon
    • 1
  • Doo-Jin Hwang
    • 1
  • Jinho Chae
    • 2
  • Won Duk Yoon
    • 2
  • Kyounghoon Lee
    • 1
  1. 1.School of Marine Technology, College of Fisheries and Ocean SciencesChonnam National UniversityYeosuKorea
  2. 2.Marine Environmental Research & Information LaboratoryGunpoKorea

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