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

Karl R. Anderson; Duane Chapman; Cari-Ann Hayer

doi:10.3391/bir.2016.5.4.10

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

Karl R. Anderson·Duane Chapman·Cari-Ann Hayer

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Abstract

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.

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BioInvasions Records Article

Source-reported bounding extent: 43.916667° to 43.959167° latitude; -86.466667° to -86.413889° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Karl R. Anderson, Duane Chapman, Cari-Ann Hayer. 2016. Assessment of dreissenid biodeposits as a potential food resource for invasive Asian carp. https://doi.org/10.3391/bir.2016.5.4.10

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