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Environmental quality of Korean coasts as determined by modified Shannon–Wiener evenness proportion |
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| Authors: | Jae-Won Yoo Yong-Woo Lee Jennifer L Ruesink Chang-Gun Lee Chang-Soo Kim Mi-Ra Park Kon-Tak Yoon In-Seo Hwang Jun-Ho Maeng Rutger Rosenberg Jae-Sang Hong |
| Institution: | 1. Korea Institute of Coastal Ecology, Inc., #801~3, IT 302, Ssangyong Technopark III, 36-1, Samjung-Dong, Ojeong-Gu, Bucheon-Si, Gyeonggi-Do, 421-808, Korea 2. Science Division, Fish Program, Washington Department of Fish and Wildlife, 600 Capitol Way North, Olympia, WA, 98501-1091, USA 3. Department of Biology, University of Washington, Box 351800, Seattle, WA, 98195, USA 4. Department of Oceanography, Inha University, Incheon, 402-751, Korea 7. Environmental Management Team, Sihwa Regional Headquarters, Korea Water Resources Corporation, 1031-8, Sa-dong, Sangnok-gu, Ansan-si, Gyeonggi-do, 426-170, Korea 5. Korea Environmental Institute, 613-2, Bulkwang-Dong, Eunpyung-Gu, Seoul, 122-040, Korea 6. Department of Marine Ecology, Kristineberg Marine Research Station, G?teborg University, Fiskeb?ckskil, 450 34, Sweden |
| Abstract: | The coast of the Korean peninsula experiences a range of human impacts, including pollution, shipping, reclamation, and aquaculture, that have motivated numerous local studies of macrobenthic organisms. In this paper, 1,492 subtidal stations were compiled from 23 studies (areas) to evaluate environmental quality on a broader scale. A common index in biomonitoring, Shannon–Wiener evenness proportion (SEP), could not incorporate azoic or single-species samples. This shortcoming was overcome by developing an inverse function of SEP (ISEP), which was positively correlated with independent measures of water quality available for nine sites and was not biased by the size of the sampling unit. Additionally, at Shihwa Dike, where samples were collected before and after reinstating a tidal connection with the ocean, ISEP values improved over time, as expected. Thus, it is now possible to assign Korean subtidal sites to seven ISEP “grades” and to use their values and trends to guide coastal management. |
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