Invertebrate composition and abundance associated with Didymosphenia geminata in a montane stream

Journal of Freshwater Ecology
By: , and 

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Abstract

Didymosphenia geminata, a relatively new aquatic nuisance species that can form extensive, mucilaginous mats on stream substrates, was reported from Rapid Creek, South Dakota in 2002. To examine the association between D. geminata and the invertebrate community in Rapid Creek, macroinvertebrates were quantified using three gear types in the fall of 2006. D. geminata was present at two of four sites sampled (range = 5.53 to 809.68 g m−2 dry mass). At each site, invertebrates were collected using dip nets, Surber samplers, and drift nets. The combined percentage of Ephemeroptera, Plecoptera, and Trichoptera in areas with D. geminata was lower (41%) than in areas without D. geminata (76%). Diptera abundance was higher at sites with D. geminata than in sites where D. geminata was absent.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Invertebrate composition and abundance associated with Didymosphenia geminata in a montane stream
Series title Journal of Freshwater Ecology
DOI 10.1080/02705060.2010.9665073
Volume 25
Issue 2
Year Published 2010
Language English
Publisher Taylor & Francis
Contributing office(s) Coop Res Unit Leetown
Description 7 p.
First page 235
Last page 241
Online Only (Y/N) N
Additional Online Files (Y/N) N