Fish (a stretch of water) using electrocution or a weak electric field.
- During the 1998-1999 surveys, fishes were collected using baited minnow traps, trap nets, gill nets, backpack electrofishing units, seines, and angling to avoid size- and species-selectivity.
- Areas upstream and downstream of the 400-m section were searched for marked fish with equal electrofishing effort (two passes with block nets).
- After all enclosures were positioned, they were electrofished using a backpack electroshocker to attempt to remove any fish that may not have escaped during positioning.
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