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Habitat assessment of Lamprotula coreana by using physical habitat simulation system (PHABSIM) at the Guem River
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  • Journal title : The Korean Journal of Malacology
  • Volume 31, Issue 4,  2015, pp.307-314
  • Publisher : The Malacological Society of Korea
  • DOI : 10.9710/kjm.2015.31.4.307
 Title & Authors
Habitat assessment of Lamprotula coreana by using physical habitat simulation system (PHABSIM) at the Guem River
Kim, Dae-Hee; Kim, Kyeong-Hwan; Lee, Won-Ok; Hur, Jun-Wook;
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 Abstract
This study sampled endangered species, Lamprotula coreana, and surveyed its habitat at the Guem River with three times from June to August 2013. To assess the habitat, this study conducted field survey considering diverse physical conditions of stream, such as pool, run and riffle, and measured transect, water depth, water velocity, substrate structure, and habitat type. When L. coreana collected, length, weight and age were measured. Water velocity, water depth and substrate structure were recorded to develop HSI (habitat suitability index) and performed PHABSIM (physical habitat simulation) to estimate the optimum flow discharge. Water level, flow discharge and transect data were used for habitat assessment, and PHABSIM was applied to calculate WUA (weighed usable area). Shell length was (28.5-102.0 mm), shell weight was (28.0-281.0 g) and age was two to seven years from L. coreana collected at the upstream of the Guem River. Developed HSI indicated that the optimal habitat for L. coreana was 0.4-0.5 m for water depth, 0.3-0.5 m/s for water velocity and sand to boulder for substrate structure. The optimum ecological flow discharge for L. coreana was 2.1 cms and WUA was /1000 m by the result of PHABSIM. Recently, river construction work and habitat disturbance have caused negative impact on the distribution of L. coreana. The result of this study would provide fundamental data for habitat restoration and management of L. coreana.
 Keywords
Lamprotula coreana;velocity;depth;ecological flow;
 Language
Korean
 Cited by
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