Trout Presentation
-
Upload
nicholas-wells -
Category
Documents
-
view
35 -
download
1
Transcript of Trout Presentation
![Page 1: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/1.jpg)
RESTORING TROUT HABITAT IN THE PIEDMONT
Nic Wells and Michael Carter
![Page 2: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/2.jpg)
BACKGROUND INFORMATION
▸ Prior study conducted by PEC and Trout Unlimited to collect data on crossings in the three counties
▸ Crossings classified as:▹ No Aquatic Organism Passage (AOP)▹ No Aquatic Organism Passage (AOP) except
adult Salmonids▹ Reduced Aquatic Organism Passage (AOP)▹ Full Aquatic Organism Passage (AOP)
![Page 3: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/3.jpg)
PRACTICUM GOALS
▸ Measure rivers and streams that serve as trout habitat in Rappahannock, Madison, and Greene counties
▸ Prioritize which crossings need to be removed from streams to optimize habitat area
![Page 4: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/4.jpg)
![Page 5: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/5.jpg)
WHAT TYPE OF CROSSING IS IT?
![Page 6: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/6.jpg)
WHAT TYPE OF CROSSING IS IT?
![Page 7: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/7.jpg)
WHAT TYPE OF CROSSING IS IT?
![Page 8: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/8.jpg)
WHAT TYPE OF CROSSING IS IT?
![Page 9: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/9.jpg)
![Page 10: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/10.jpg)
BROOK TROUT HISTORY
▸ Virginia’s only native trout species▸ Populations greatly reduced by habitat
destruction and water quality reduction▸ Stream habitats fractured by roads and other
crossings
![Page 11: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/11.jpg)
BROOK TROUT BIOLOGY
▸ Require cold water (Optimal below 20℃/68℉)▸ Indicators of water quality▸ Lay eggs in clean gravel▸ Found often in mountain headwaters
![Page 12: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/12.jpg)
WHAT IS SUITABLE HABITAT?
![Page 13: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/13.jpg)
PRACTICUM STEPS
Use GIS to measure stream length
Analyze surrounding area
Prioritize crossing removals
![Page 14: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/14.jpg)
MEASURING STREAM LENGTH
▸ 19 streamsheds and 133 crossings measured▸ Only suitable trout habitat included in
measurements▸ Recorded locations of all crossings▸ Braids, tributaries made data less precise
![Page 15: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/15.jpg)
![Page 16: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/16.jpg)
PRACTICUM STEPS
Use GIS to measure stream length
Analyze surrounding area
Prioritize crossing removals
![Page 17: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/17.jpg)
ANALYZING SURROUNDING AREA
▸ Data used to determine quality of the stream (present and future)
▸ Data layers used:▹ Forest Cover (Virginia Department of
Forestry)▹ Land Use (Virginia Department of Forestry)▹ Easements/ Public Land (Virginia
Department of Conservation and Recreation)
![Page 18: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/18.jpg)
PRACTICUM STEPS
Use GIS to measure stream length
Analyze surrounding area
Prioritize crossing removals
![Page 19: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/19.jpg)
PRIORITIZING STREAMS
▸ Factors:▹ Stream length (distance reconnected)▹ Presumed stream quality▹ Number of barriers
▸ Prioritize which crossings need to be removed from streams to optimize habitat area
![Page 20: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/20.jpg)
STREAM DATA
Total Length (Trout Habitat)
Number of Inhibited Crossings
Longest Continuous
Stretch*
Conway 13.979 miles 3 4.015 miles
Piney 6.363 miles 1 5.195 miles
South 8.874 miles 5 3.602 miles
Rapidan 9.313 miles1 on main stretch 1
on tributary8.224 miles
*This does not include tributaries, which add substantial distance for these rivers, especially Conway
![Page 21: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/21.jpg)
1.Conway River
![Page 22: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/22.jpg)
![Page 23: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/23.jpg)
![Page 24: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/24.jpg)
2.Piney River
![Page 25: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/25.jpg)
![Page 26: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/26.jpg)
3.South River
![Page 27: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/27.jpg)
![Page 28: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/28.jpg)
4.Rapidan River
![Page 29: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/29.jpg)
![Page 30: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/30.jpg)
9%of Virginia’s historic brook trout habitat still intact
75,000$USDA average cost of crossing replacement
65 crossingsinhibiting aquatic organism passage in Greene, Madison, and Rappahannock
![Page 31: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/31.jpg)
ANY QUESTIONS?
![Page 32: Trout Presentation](https://reader034.fdocuments.in/reader034/viewer/2022042520/58f23c241a28aba8208b4575/html5/thumbnails/32.jpg)
WORKS CITED
▸ “Brook Trout.” National Park Service http://www.nps.gov/shen/learn/nature/brook-trout.htm
▸ “Eastern Brook Trout: Status and Threats.” Eastern Brook Trout Joint Venture
▸ Hendrickson, Shane, Kate Walker, Shelia Jacobson, and Fred Bower. “Assessment of Aquatic Organism Passage at Road/Stream Crossings for the Northern Region of the USDA Forest Service.” (2008): 9. Print