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  • P-ISSN2765-2203
  • E-ISSN2765-2211

Longitudinal Variation of Fish Communities in the Geum River, Korea: Application of the Concept of Beta Diversity and Local Uniqueness

Proceedings of the National Institute of Ecology of the Republic of Korea, (P)2765-2203; (E)2765-2211
2022, v.3 no.2, pp.122-128
https://doi.org/10.22920/PNIE.2022.3.2.122
Jeong-Hui Kim (EcoResearch Incorporated)
Sang-Hyeon Park (EcoResearch Incorporated)
Seung-Ho Baek (EcoResearch Incorporated)
Donghyun Hong (Department of Integrated Biological Science, Pusan National University)
Hyunbin Jo (Institute for Environment and Energy, Pusan National University)

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Abstract

To present the spatial variation of fish assemblages in the Geum River in Korea, the concept of beta diversity (β-diversity) estimates based on the variance of the community data table was applied. Fish communities and environmental variables were collected from 13 sampling sites along the in mid-low reaches of the River. We calculated the β-diversity and local contribution to beta diversity (LCBD) values at each site depending on the two types of data, ‘occurrence’ with Jaccard and Sørensen dissimilarity coefficients, and ‘abundance’ with Hellinger distance. Multivariate and correlation analyses were also performed to determine the relationships between LCBD and other variables, such as community indices and physicochemical and hydrological factors. The β-diversity values of fish communities in the River were estimated as 0.218 and 0.145 for occurrence data table with Jaccard and Sørensen respectively, and 0.268 for abundance data. Similar patterns of LCBD along the sampling sites were detected in two dissimilarity measurements of occurrence table, and LCBD values with abundance data were slightly different. The LCBD values are strongly correlated with community indices, and also suitable for indicating the uniqueness of fish assemblages. However, further research is needed to determine the LCBD value as an indicator of environmental variability.

keywords
Beta diversity Dissimilarity coefficient Fish community Local contribution to beta diversity Variance of community data table
Submission Date
2021-10-20
Revised Date
2021-11-29
Accepted Date
2021-11-30

Proceedings of the National Institute of Ecology of the Republic of Korea