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http://dx.doi.org/10.7850/jkso.2011.16.3.147

A Knowledge-based Approach for the Estimation of Effective Sampling Station Frequencies in Benthic Ecological Assessments  

Yoo, Jae-Won (Korea Institute of Coastal Ecology, Inc.)
Kim, Chang-Soo (Korea Institute of Coastal Ecology, Inc.)
Jung, Hoe-In (Korea Institute of Coastal Ecology, Inc.)
Lee, Yong-Woo (Washington State Department of Fish & Wildlife)
Lee, Man-Woo (Korea Institute of Coastal Ecology, Inc.)
Lee, Chang-Gun (Korea Institute of Coastal Ecology, Inc.)
Jin, Sung-Ju (Sekwang Engineering Consultants, Co. Ltd.)
Maeng, Jun-Ho (Korea Environment Institute)
Hong, Jae-Sang (Department of Biology and Oceanography, Inha University)
Publication Information
The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY / v.16, no.3, 2011 , pp. 147-154 More about this Journal
Abstract
Decision making in Environmental Impact Assessment (EIA) and Consultation on the Coastal Area Utilization (CCAU) is footing on the survey reports, thus requires concrete and accurate information on the natural habitats. In spite of the importance of reporting the ecological quality and status of habitats, the accumulated knowledge and recent techniques in ecology such as the use of investigated cases and indicators/indices have not been utilized in evaluation processes. Even the EIA report does not contain sufficient information required in a decision making process for conservation and development. In addition, for CCAU, sampling efforts were so limited that only two or a few stations were set in most study cases. This hampers transferring key ecological information to both specialist review and decision making processes. Hence, setting the effective number of sampling stations can be said as a prior step for better assessment. We introduced a few statistical techniques to determine the number of sampling stations in macrobenthos surveys. However, the application of the techniques requires a preliminary study that cannot be performed under the current assessment frame. An analysis of the spatial configuration of sampling stations from 19 previous studies was carried out as an alternative approach, based on the assumption that those configurations reported in scientific journal contribute to successful understanding of the ecological phenomena. The distance between stations and number of sampling stations in a $4{\times}4$ km unit area were calculated, and the medians of each parameter were 2.3 km, and 3, respectively. For each study, approximated survey area (ASA, $km^2$) was obtained by using the number of sampling stations in a unit area (NSSU) and total number of sampling stations (TNSS). To predict either appropriate ASA or NSSU/TNSS, we found and suggested statistically significant functional relationship among ASA, survey purpose and NSSU. This empirical approach will contribute to increasing sampling effort in a field survey and communicating with reasonable data and information in EIA and CCAU.
Keywords
macrobenthos; effective number of sampling station; impact assessment; sampling design; monitoring strategy;
Citations & Related Records
Times Cited By KSCI : 14  (Citation Analysis)
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