Event Title

Concurrent Sessions A: Passage Effectiveness Monitoring in Small Streams I - Examination of Methods for Detecting Small, Non-Game Fish Passage at Road-Stream Crossings in the Southeastern U.S.

Location

Construction & Engineering Hall, Oregon State University

Start Date

27-6-2013 10:45 AM

End Date

27-6-2013 11:05 AM

Description

We used a combination of techniques to monitor fish movement at road/stream crossings on the Daniel Boone National Forest, KY. In 2010, we used mark-recapture and collected fin clips for genetic analysis to assess passage at 20 crossings; at 3 of the crossings we also marked individual fish with RFID tags and continuously monitored for movement from March –October. Mark-recapture provided relatively little useful information for assessing fish passage. In contrast, we detected differences in fish passage among crossings using RFID tagging and genetic approaches. In 2011, 2 of the crossings where RFID monitoring and genetic sampling occurred were replaced or improved with the goal of improving upstream fish passage. In 2012, we expanded RFID monitoring to 6 sites, including the 2 improved sites. We also returned to all 20 sites for additional genetic sampling, and added genetic sampling at 2 waterfall sites to improve our ability to detect passage with genetic analysis. RFID monitoring provided detailed information on the timing and magnitude of fish movement and again showed less movement through difficult crossings. Additional genetic analyses are underway. Our results demonstrate the usefulness of RFID and genetic approaches, and provide information on the relative costs of each approach.

Comments

Craig Roghair has worked as a Fishery Biologist for the USDA Forest Service Southern Research Station in Blacksburg, VA since 2000. He has managed the aquatic organism passage program at the Center for Aquatic Technology Transfer since 2005. The Center has completed fish passage assessments at over 7,000 road-stream crossings on National Forests in the southern and eastern US, provides decision support for crossing replacement prioritization, and has examined several approaches for monitoring passage of small, non-game fish species through road crossings, which is the focus of his talk today.

This document is currently not available here.

Share

COinS
 
Jun 27th, 10:45 AM Jun 27th, 11:05 AM

Concurrent Sessions A: Passage Effectiveness Monitoring in Small Streams I - Examination of Methods for Detecting Small, Non-Game Fish Passage at Road-Stream Crossings in the Southeastern U.S.

Construction & Engineering Hall, Oregon State University

We used a combination of techniques to monitor fish movement at road/stream crossings on the Daniel Boone National Forest, KY. In 2010, we used mark-recapture and collected fin clips for genetic analysis to assess passage at 20 crossings; at 3 of the crossings we also marked individual fish with RFID tags and continuously monitored for movement from March –October. Mark-recapture provided relatively little useful information for assessing fish passage. In contrast, we detected differences in fish passage among crossings using RFID tagging and genetic approaches. In 2011, 2 of the crossings where RFID monitoring and genetic sampling occurred were replaced or improved with the goal of improving upstream fish passage. In 2012, we expanded RFID monitoring to 6 sites, including the 2 improved sites. We also returned to all 20 sites for additional genetic sampling, and added genetic sampling at 2 waterfall sites to improve our ability to detect passage with genetic analysis. RFID monitoring provided detailed information on the timing and magnitude of fish movement and again showed less movement through difficult crossings. Additional genetic analyses are underway. Our results demonstrate the usefulness of RFID and genetic approaches, and provide information on the relative costs of each approach.