Effectiveness of New Rock-Ramp Fishway at Miyanaka Intake Dam Compared with Existing Large and Small Stair-Type Fishways
نویسندگان
چکیده
The migration of fish is influenced by the unique environmental characteristics destination and migratory habitat preferences. There are three fishways in Miyanaka Intake Dam. rock-ramp fishway was newly established 2012, creating an environment with different flow velocities water depths. purpose this study to investigate effectiveness new for native through two surveys. In first survey, traps were installed during survey period all caught. run-up quantified measuring velocity. second caught spectrum methods upstream downstream from dam. It found that bottom-dwelling swimming not bound bottom low abilities used as a habitat. After built, catches increased Further, potential certain species, such Cottus pollux. As demonstrate fishways, research results expected be valuable fishery managers those planning river engineering projects.
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ژورنال
عنوان ژورنال: Water
سال: 2022
ISSN: ['2073-4441']
DOI: https://doi.org/10.3390/w14131991