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Fig. 1

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Study area in Korea. The investigation was conducted at each X point: inlet and outlet points of fishways (Baekjae − A, A′; Sejong − B, B′; Gongju − C, C′; Jamsil − D, D′) and upstream and downstream points of the main stream weir section (Sejong − b, b′; Gongju − c, c′).

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