Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Substrate Characteristics of Sea Cucumber Stichopus japonicus Habitats in the West Coast of Korea

한국 서해안 돌기해삼(Stichopus japonicus)의 서식지 기질 특성

  • Park, Kwang-Jae (Tidal-Flat Research Center, National Fisheries Research & Development Institute) ;
  • Ryu, Sang-Ock (Institute of Coastal Management & Technology) ;
  • Baek, Young-Sook (Institute of Coastal Management & Technology) ;
  • Kim, Yeun-Seol (Internatioal Tidal Flat Research Institute, Fisheries Research and Department Institute) ;
  • Kang, Hee-Woong (West Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Han, Hyon-Sob (Aquafeed Research Center, National Fisheries Research & Development Institute)
  • 박광재 (국립수산과학원 갯벌연구소) ;
  • 류상옥 (연안관리기술연구소) ;
  • 백영숙 (연안관리기술연구소) ;
  • 김윤설 (해양수산과학원 국제갯벌연구소) ;
  • 강희웅 (국립수산과학원 서해수산연구소) ;
  • 한현섭 (국립수산과학원 사료연구센터)
  • Received : 2013.03.04
  • Accepted : 2013.10.25
  • Published : 2013.12.31
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Abstract

We analyzed surface sediments to explain the substrate characteristics of sea cucumber Stichopus japonicus habitat. The analyses included grain-size determination, water content (WC), loss on ignition (IL), chemical oxygen demand (COD), and acid volatile sulfide (AVS) content. We obtained data on sea cucumber density, weight, and length at each station in a marine farming area in the middle of Korea's Taean coast on the West (Yellow) Sea in May, 2012. The apparent density of S. japonicus was high in coarse and bimodal sediments, whereas it was low in fine and unimodal sediments. The mass of S. japonicus was greater in fine than in coarse sediments, showing a different trend from sea cucumber density. The values for WC, IL, COD, and AVS in surface sediments were higher in areas with high densities of S. japonicus than in areas with low sea cucumber densities. In particular, the concentration of AVS was much higher than the value proposed in Japanese criteria for areas with high S. japonicus density.

Keywords

References

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