Specimen Information

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

Specimen ID276065
GroupCrustaceans-Cladocerans
GenusBythotrephes
Specieslongimanus
Common Namespiny waterflea
CountryCanada
StateONT
LocalityLake Manitou, 0 km to Sandfield
Mapping AccuracyAccurate
HUC8 NameLake Huron
HUC8 Number04080300
HUC10 NameManitoulin Island
HUC10 Number0408030002
HUC12 NameManitoulin Island
HUC12 Number040803000200
Map
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Collection Day15
Collection Month10
Collection Year1997
Year AccuracyActual
Potential Pathwayshipping ballast water
Statusunknown
Reference 1
Ref. Number:19331
Author:Ontario Federation of Anglers and Hunters.
Date:2009
Title:OFAH Database All Species - 2009 Download.
CommentsMethod of capture through observation. Confirmed. Noticed them for the first time near the dam at Sandfield, no sample collected but he knows what they are from fishing Lk. Huron. To try to confirm this sighting I spoke with John Lehman (U.S. researcher) who Norm Yan said had written in a research proposal that Bc were in this lake and others on the Island, he said he heard it from another researcher whos name he would try to get to me. Reporter indicated that many anglers fish with downriggers Lk. Huron/Georgian Bay and then trailer inland on the island to fish so it is likely that Bc have been spread to these lakes.
Record TypeLiterature
Freshwater/MarineFreshwater


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Citation information: U.S. Geological Survey. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [9/17/2021].

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