Dip-netter

According to Stuart, one of the Astorian party, an experienced dip-netter could take as many as 500 fish each day.

Source: wiktionary

To measure hydraulic complexity and fish occupancy for each piece of large wood, the following sampling protocol was used. Initially each piece of large wood was electrofished using a boat-mounted 7.5 GPP electrofishing unit (Smith-Root Inc., Portland, OR, USA). The boat, with a crew consisting of a driver, dip-netter and recorder, approached each piece of large wood from its downstream end.

Source: wiktionary

Satisfied with my prowess as a dip-netter, I dunked the quivering mass and let them continue on their frantic run.

Source: wiktionary