DNA barcode-based survey of Trichoptera in the Crooked River reveals three new species records for British Columbia

• Main Authors: Erasmus, Daniel J, Yurkowski, Emily A, Huber, Dezene PW
• Format: Other/Unknown Material
• Language: unknown
• Published: PeerJ 2017
• Subjects: Arctic; Crooked River
• Online Access: http://dx.doi.org/10.7287/peerj.preprints.3034v2; https://peerj.com/preprints/3034v2.pdf; https://peerj.com/preprints/3034v2.xml; https://peerj.com/preprints/3034v2.html

Anthropogenic pressures on aquatic systems have placed a renewed focus on biodiversity of aquatic macroinvertebrates. By combining classical taxonomy and DNA barcoding we identified 39 species of caddisflies from the Crooked River, a unique and sensitive system in the southernmost arctic watershed in British Columbia. Our records include three species never before recorded in British Columbia: Lepidostoma togatum (Lepidostomatidae) , Ceraclea annulicornis (Leptoceridae) , and Cheumatopsyche harwoodi (Hydropsychidae). Three other specimens may represent new occurrence records and a number of other records seem to be substantial observed geographic range expansions within British Columbia.