--ROTARY SCREW TRAP WITH TRAILER

Region 1, U.S. Fish and Wildlife Service intends to sole source a requirement per FAR 6.302-1(2), for Rotary screw Traps. Rotary screw traps are used to sample juvenile fish downstream migration in riverine habitats. The objective of the USFWS Lahontan National Fish Hatchery Complex is to estimate Lahontan cutthroat trout reproduction levels within the Truckee River. Other sampling methods are ineffective during spring river flow conditions. Rotary screw traps allow for live capture of juvenile fish in a variety of riverine conditions and can be operated 24 hours a day without the need for extra personnel. Screw traps are used to sample salmonid reproduction by capturing salmonid fry migrating downstream. Rotary screw traps sample a known volume of water that can be used to estimate salmonid reproduction. Juvenile salmonids are captured with low mortality due to the addition of a live box. Screw traps can be operated 24 hours per day with minimal man hours and maintenance. The screw traps can be used to examine outmigration timing correspondent to stream flows and temperatures. In the Truckee River system, Lahontan cutthroat trout (LCT) migrate downstream as fry to Pyramid Lake. The rotary screw trap would allow for sampling the LCT fry migration without the use of labor intensive sampling methods which can be harmful to other sensitive species. No other FedBidOpps.gov notifications will be posted. Please contact Troy Mobley 503-231-6227, [email protected], with questions.