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[48-2/139]낙동강 상류에 서식하는 열목어의 일주기 이 동 패턴 연구
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   08-15-2-낙동강.pdf (613.2K) [163] DATE : 2015-07-20 16:45:58
To investigate seasonal (summer and fall) daily movement of Brachymystax lenok tsinlingensis
that inhabit in upper part of the Nakdong River, we attached radio tags to seven individuals (summer: BL1-2; fall: BL3-7) and monitored them at an interval of 2 h. The survey results revealed that the average movement distance per day (m) (±SD) of B. l. tsinlingensis was 182.4±79.2 m, and most of the individuals migrated within 1 km as their habitat boundary. The maximum movement distance per day (m) and the home range (m) during summer season were 550.5±75.5 m and 649±53 m, respectively, compared to 283.8±55.1 m and 186±32 m during fall season. From these findings, it can be inferred that B. l. tsinlingensis exhibits seasonal changes in the distance of daily movement; however, it generally covers short distances without leaving the habitat boundaries during both seasons. The seasonal daily movement of B. l. tsinlingensis established in this study is expected to be useful in preserving their population.