Brook Trout And Climate Change By Turner Sasina

Brook Trout And Climate Change By Turner Sasina

Brook Trout (Salvelinus fontinalis) �Stenotherm �Dark base coloration , scattered small red spots, with red pectoral, pelvis and anal fins, vermications

Brook Trout Native Range

Habitat �Prefer clear cold water bodies that are often associated with mountain streams

Physiological Effects of Warmer Temperature �Exotherms, meaning temperature effects many aspects of a fish’s functions. �Functions including growth, respiration, reproduction etc…

Temperature Tolerances

Physiological

Habitat Loss �Range from roughly 20 to 40% from climate change alone.

Habitat Loss

Invasive Species �Stenotherms vs. Eurytherms �Brown Trout and Rainbow Trout and other piscivorous fish species �Invasive species are stocked for sport fishing activities �Brook Trout are considered invasive

Invasive Species

Current Management �Some management to reclaim habitat lost from land changes in the water sheds �Means include replanting riparian zones, introducing Brook Trout back to viable habitats that were lost �Decrease habitat fragmentation

Management for Climate Change �A more active approach �Facilitating migration

Management

Future for Brook Trout �Will more than likely require more active approaches to preserve the species in the uncertain future of climate change �Reduce the stocking of non native species �More research into methods of management in regard to climate change and surveys of watersheds.

Sources � http: //www. nativetroutflyfishing. com/brooktrout. htm � Http: //www. wildtrout. org/content/trout-facts � EBTJV Roadmap to Restoration — EBTJV. Available from: http: //easternbrooktrout. org/reports/ebtjv-roadmap-to-restoration/view � Ficke AD, Myrick CA, Hansen LJ. 2007. Potential impacts of global climate change on freshwater fisheries. Reviews in Fish Biology and Fisheries 17: 581– 613. � Rahel FJ, Bierwagen B, Taniguchi Y. 2008. Managing aquatic species of conservation concern in the face of climate change and invasive species. Conservation Biology 22: 551– 561. � O’Neal K. 2002. Effects of global warming on trout and salmon in US streams. Defenders of Wildlife. � Poplar-Jeffers IO, Petty JT, Anderson JT, Kite SJ, Strager MP, Fortney RH. 2009. Culvert replacement and stream habitat restoration: implications from brook trout management in an Appalachian watershed, USA. Restoration Ecology 17: 404– 413. � Anon. Brook Trout - Shenandoah National Park (U. S. National Park Service). Available from: http: //www. nps. gov/shen/naturescience/brook-trout. htm � Wenger SJ, Isaak DJ, Luce CH, Neville HM, Fausch KD, Dunham JB, Dauwalter DC, Young MK, Elsner MM, Rieman BE. 2011. Flow regime, temperature, and biotic interactions drive differential declines of trout species under climate change. Proceedings of the National Academy of Sciences 108: 14175– 14180. � http: //www. dec. ny. gov/outdoor/7739. html � https: //www. fhwa. dot. gov/engineering/hydraulics/pubs/07033/1. cfm