Summary of 2018 Northern Pike Suppression Results on Boundary Reservoir, Pend Oreille River, WA.

Category: Management and Conservation

Published: February 2019

Pages: 3

Introduction

During the third year of mechanical suppression of Northern Pike (NP) in Boundary Reservoir a total of 185 nets were deployed with 132 Northern Pike removed between March 12 and April 24, with a final catch-per-unit-effort (CPUE) of 0.71 NP/net-night. The Kalispel Natural Resources Department collected 16 Northern Pike during the 2018 Spring Pike Index Netting (SPIN) Survey conducted May 7 through May 10. The resulting CPUE of 0.40 NP/ net-night (95% CI: ± 0.24), in sloughs and mainstem river between Box Canyon Dam and Metaline Falls, meeting the abundance target of ≤ 0.50 NP/net-night for these sections of the reservoir.

In total, 546 NP were removed in 366 overnight gillnet sets during the suppression effort in Boundary Reservoir through 2018.