Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Diffusion Characteristics of Ecklonia cava Spores around Marine Forest Reefs

해중림초 주변의 감태 포자확산 특성

  • Kim, Yong-Kwan (Faculty of Marine Technology, Chonnam National University) ;
  • Lee, Jin-Yeong (Department of Naval Architecture and Ocean Engineering, Chonnam National University) ;
  • Kwak, Ihn-Sil (Faculty of Marine Technology, Chonnam National University) ;
  • Kim, Jong-Kyu (Faculty of Marine Technology, Chonnam National University)
  • 김용관 (전남대학교 해양기술학부) ;
  • 이진영 (전남대학교 조선해양공학과 대학원) ;
  • 곽인실 (전남대학교 해양기술학부) ;
  • 김종규 (전남대학교 해양기술학부)
  • Received : 2020.01.22
  • Accepted : 2020.02.25
  • Published : 2020.02.28
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Abstract

This study investigated the dif usion characteristics of Ecklonia cava spores around marine forest reefs. For this purpose, a numerical analysis was conducted using field observations in the target area and an EFDC model. Based on the results of field observations and the EFDC model, Flow-3D was performed on three types of marine forest reefs, mamely triangular pyramid reef, double-dome reef, and ribbed reef, to monitor the movement direction and maximum movement distance for E. cava spores. As a result, the equilaterally triangular pyramid reef and double-domed reef were found to have a maximum settlement of spores of 10 m in the northwestern direction and 6 m in the western direction. The ribbed reef had a maximum settlement of spores at 4m. These results show that consideration of the diffusion characteristics of E. cava spores when the seaweeds are installed can increase the effectiveness of the algae as substrate of adhesion.

본 연구는 해중림초 주변에서의 감태 포자의 확산 특성에 알아보기 위하여 연구를 수행하였다. 이를 위해 대상해역에서의 현장관측과 EFDC를 활용하여 수치모형실험을 실시하였다. 또한, 앞선 결과를 바탕으로 대상해역에 설치된 해중림초 중 3개종(정삼각뿔형어초, 이중돔형어초, 날개부를가진어초)에 대하여 Flow-3D를 이용한 수치모형실험을 실시하여 실해역 흐름 재현을 통한 포자이동 방향 및 최대 이동거리를 도출하고자 하였다. 연구결과, 정삼각뿔형어초와 이중돔형어초의 경우 포자의 최대 안착지점은 북서쪽 방향으로 10 m, 서쪽방향으로 6 m로 나타났다. 날개부를가진어초의 경우 포자가 해중림초 주변 4m지점에서 최대 안착을 하였다. 이러한 결과는 해중림초 설치시 감태 포자의 확산특성을 고려하여 배치하였을 경우 포자의 이동에 따른 해조류의 부착기질로서의 기능에 대한 효과가 증대될 것으로 판단된다.

Keywords

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