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Estimating the Size Effect on Relative Species Number in Macrobenthic Community  

유재원 (㈜한국연안환경생태연구소)
김창수 (㈜한국연안환경생태연구소)
박미라 (㈜한국연안환경생태연구소)
이형곤 (한국해양연구원 생태환경연구본부)
이창근 (㈜한국연안환경생태연구소)
이재학 (한국해양연구원 생태환경연구본부)
홍재상 (인하대학교 해양학과)
Publication Information
The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY / v.9, no.1, 2004 , pp. 20-29 More about this Journal
Abstract
Macrobenthos species-area relationship was investigated and empirical models were estimated to enable comparisons among species numbers of different sample size. The study aims to choose a way to predict cumulative relative species number (CRSN) in a given sample size Saemangeum, located in the west coast of South Korea, were visited in Apr., May and Aug.,2002 and a total of 261 biological samples from 87 stations were obtained by employing a quantitative sediment sampler, Smith-McIntyre grab and design of 3 replicates at each station. Relative species numbers (%) were baselined at sample size of 1000 $\textrm{cm}^2$ and the patterns of CRSN along the axis of sample size were measured and observed. In correlation analysis performed on a set of abiotic and biotic variables, log-transformed CRSN showed the only significant relationship with log-transformed density. Based on the result, three models, Log CRSN 2000, Log CRSN 3000 and Log CRSN were produced. The former two were devised to predict CRSN at 2000 and 3000 $\textrm{cm}^2$ respectively, and the latter at various sample sizes and samplers (all p-values were <0.001). Database from other studies (intertidal or subtidal macrofaunal samples from Kyonggi Bay and Saemangeum) were used to evaluate validity of the models. Observed CRSN below sample size of 3000 $\textrm{cm}^2$ fell under the range of 95% prediction interval and this was appeared to provide reliability of the models below that sample size.
Keywords
Species-Area Relationship; Macrobenthos; Species Richness; Sample Size Effect;
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Times Cited By KSCI : 4  (Citation Analysis)
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