Photodegraded dissolved organic matter from peak freshet river discharge as a substrate for bacterial production in a lake-rich great Arctic delta.

• Main Authors: Gareis, Jolie A.L., Lesack, Lance F.W.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: NRC Research Press (a division of Canadian Science Publishing) 2018
• Subjects: Arctic; Mackenzie Delta; Mackenzie River; Mackenzie river
• Online Access: http://hdl.handle.net/1807/90384; http://www.nrcresearchpress.com/doi/abs/10.1139/AS-2017-0055

Lake-rich Arctic river deltas are recharged with terrigenous dissolved organic matter (DOM) during the yearly peak water period corresponding with the solstice (24 h d-1 solar irradiance). Bacteria-free DOM collected during peak Mackenzie River discharge was exposed to sunlight for up to 14 d in Jun...