Bythotrephes longimanus
Bythotrephes longimanus
(spiny waterflea)
Crustaceans-Cladocerans
Exotic

Impact ID9904
Impact TypePredation/Herbivory
Study TypeObservational
Study LocationField
Impact DescriptionIn lakes invaded by Bythotrephes longimanus, mercury bioaccumulation in Coregonus artedi, which are known to prey upon the spiny waterflea, changed from historical values before the introduction. In some lakes, there was an increase in mercury bioaccumulation in cisco, while in others a decrease in bioaccumulation of mercury in cisco populations.
Reference45075
Great Lakes RegionNo
Cost 
LocationOntario, Canada

Return to impacts listing for Bythotrephes longimanus

Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/16/2025].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.