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Assessment of dreissenid biodeposits as a potential food resource for invasive Asian carp

December 22, 2016

Silver carp (Hypophthalmichthys molitrix) and bighead carp (H. nobilis) are poised to invade the Laurentian Great Lakes. Zebra mussels (Dreissena polymorpha) and quagga mussels (D. rostriformis bugensis) have shifted nutrient pathways towards the benthos, partly through deposition of feces and rejected food particles called biodeposits. When biodeposit material was fed to bighead and silver carp, they fed on the material, but on average lost weight. Energy density between fed and unfed fish did not differ, but a few individual fish did gain weight on the biodeposits diet. Our results demonstrate that biodeposits might be considered a supplemental food for bigheaded carps.

Citation Information

Publication Year 2016
Title Assessment of dreissenid biodeposits as a potential food resource for invasive Asian carp
DOI 10.3391/bir.2016.5.4.10
Authors Karl R. Anderson, Duane C. Chapman, Cari-Ann Hayer
Publication Type Article
Publication Subtype Journal Article
Series Title BioInvasions Records
Series Number
Index ID 70179219
Record Source USGS Publications Warehouse
USGS Organization Columbia Environmental Research Center