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North Branch Susquehanna River
2010 Walleye Reproduction

Area 4 biologists began to assess walleye reproduction in the North Branch Susquehanna River in 1995. The annual assessment is done via night boat electrofishing at 4 sites in October. In 2010, catch-per-unit-effort (CPUE) of young-of-the-year (YOY) walleye was 181.97/hour. This was the second highest value on record (Figure 1), surpassed only by the 1999 CPUE of 201.50/hour. Assuming normal survival and growth rates, the large 2010 walleye year class should provide excellent angling for legal size fish beginning in fall 2011 or spring 2012.

Figure 1. Electrofishing catch per hour of young-of-the-year walleye in the North Branch Susquehanna River from 1995 to 2010.

Figure 1


— Rob Wnuk, Area 4 Fisheries Manager

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