9554

• UCREFRP Catalog Number: 9554
• Author: Monroe, L. and T. Hedrick.
• Title: Northern Pike ‎(Esox lucius)‎ Control in the Middle Green River, Utah 2001-2006.
• USFW Year: 2008.
• USFW - Doc Type: 109,
• Copyright Material: NO

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Between all three efforts, a total of 32 northern pike were removed (Table 2). The Colorado

pikeminnow abundance estimates continued in 2002 and crews removed an additional 10

northern pike during this effort (182 hours) (Table 3). Mean total length of all pike removed was

633 mm (295 mm - 815 mm) (Table 1; Figure 3). Concentration areas during 2002 remained the

Thunder Ranch to Walker Hollow reach, though quite a few were still captured near the town of

Ouray and the Duchesne River (Table 4).

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2003

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Electrofishing for northern pike began on 31 March 2003, ended on 27 June, and took 15

sampling days to complete (Table 1). Crews fished for a total of 65.5 hours for this project

(Table 2). Fyke netting began on 12 March and ended on 20 June. This effort consisted of 103

fyke net nights. No trammel netting occurred this year for northern pike removal. Between the

two efforts, a total of 7 northern pike were removed (Table 2). The Colorado pikeminnow

abundance estimates continued in 2003 and crews removed an additional 16 northern pike during

this effort (190 hours) (Table 3). Mean total length of all northern pike was 668 mm (423 mm-

984 mm) (Figure 3). Most pike were again removed from the Thunder Ranch to Walker Hollow

reach and the Split Mountain reach (Table 4).

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2004

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Electrofishing began on 24 March 2004, ended on 14 June, and took 14 sampling days to

complete (Table 1). Crews fished for a total of 14.7 hours for this project (Table 2). Fyke netting

began on 22 March and ended on 14 June. This effort consisted of 93 fyke net nights. Crews

returned to trammel netting between 23 April and 13 May and spent a total of 2.4 hours on this

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