An integrative approach to assessing bridle shiner (Notropis bifrenatus) distribution using environmental DNA and traditional techniques
诺特罗皮斯
环境DNA
生态学
生物
渔业
动物
进化生物学
鱼
生物多样性
作者
Lara S. Katz,Stephen M. Coghlan,Erik J. Blomberg,Michael T. Kinnison,Geneva York,Joseph Zydlewski
出处
期刊:Canadian Journal of Fisheries and Aquatic Sciences [Canadian Science Publishing] 日期:2024-08-16
标识
DOI:10.1139/cjfas-2023-0234
摘要
The bridle shiner ( Notropis bifrenatus) is a small cyprinid native to the eastern United States and Canada. Bridle shiner populations have declined across their range, and the species now receives concern status or legal protection in 13 states and two provinces. Bridle shiners were historically found in southern and western Maine in densely vegetated, shallow habitats along the shorelines of streams and ponds. We surveyed areas of Maine that supported historical bridle shiner populations using environmental DNA (eDNA) and traditional seine netting methods, and then used eDNA sampling to survey areas with unknown bridle shiner presence. We rediscovered bridle shiner populations at 11 of 32 historically occupied waterbodies and documented bridle shiners in four additional waterbodies. We determined that both eDNA and seine net surveys are viable options for monitoring bridle shiners in Maine and identified ways to streamline the eDNA methods used in this study to reduce the time and cost of future surveys.