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ISSN : 1225-4517(Print)
ISSN : 2287-3503(Online)
Journal of Environmental Science International Vol.29 No.3 pp.273-282
DOI : https://doi.org/10.5322/JESI.2020.29.3.273

Assessing Average Residence Time as a Physical Descriptor for Shellfish Farming Areas in Jaran Bay, Korea

Jin Ho Kim,Sung-Eun Park*,Youngmin Kim,Chung Sook Kim,Sungchan Kang,Woo-Sung Jung,Bo-Ram Sim,Ki-Hyuk Eom
Marine Environment Research Division, National Institute of Fisheries Science, Busan 46083, Korea
*Corresponding author: Sung-Eun Park, Marine Environment Research Division, National Institute of Fisheries Science, Busan 46083, Korea Phone: +82-51-720-2521

Abstract

Residence time is defined as the time taken for a material in a system to leave the system. The residence time characteristics in shellfish aquaculture determine the dispersion of excretion from aquaculture farms, along with the supply of food by seawater exchange. In this study, we estimated the spatial distribution of average residence time in the shellfish farming area using a particle tracking model. As a result, a relatively short average residence time of about 20 days or less was calculated in most areas, but an average residence time of more than 40 days was calculated in the inner areas. Relatively long average residence times were calculated along the west coast compared to the east coast, with the longest average residence time of more than 50 days in the northwestern areas. It can be inferred that the disturbance of the benthic ecosystem caused by shellfish farms is likely to be large because of the relatively weak dispersion of excrement from shellfish farms located on the west coast, especially in the northwest region. This distribution of average residence time is important for understanding the potential effects of seawater exchange on the environmental sustainability of shellfish farms, along with the seawater circulation characteristics of Jaran Bay.

자란만 패류양식해역의 물리환경 설명을 위한 평균체류시간 산정

김진호,박성은*,김영민,김청숙,강성찬,정우성,심보람,엄기혁
국립수산과학원 어장환경과

초록

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