ORIGINAL RESEARCH article
Front. Freshw. Sci.
Sec. Freshwater Species Evolution and Ecology
Volume 3 - 2025 | doi: 10.3389/ffwsc.2025.1584751
Identifying Novel Sea Lamprey (Petromyzon marinus) Spawning Areas in a Large Unimpounded River System
Provisionally accepted
- 1United States Geological Survey, Great Lakes Science Center, Millersburg, MI, United States
- 2United State Fish and Wildlife Service, Ludington Biological Station, Ludington, United States
- 3United States Fish And Wildlife Service, Marquette Biological Station, Marquette, MI, United States
- 4United States Geological Survey, Great Lakes Science Center, Ann Arbor, MI, United States
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Despite the success of the Sea Lamprey Control Program (SLCP) in reducing Sea Lamprey (Petromyzon marinus) abundance throughout the Laurentian Great Lakes, control remains a significant challenge in the Saint Clair-Detroit River System (SCDRS) due to the system's size, flow dynamics, and amount of potentially suitable spawning habitat. We used acoustic telemetry to identify repeated patterns in habitat use, presumed spawning areas, and migratory routes for 271 acoustic-tagged Sea Lamprey in the SCDRS during the 2016 and 2017 spawning seasons.Sixty-nine percent of tagged Sea Lamprey appeared to spawn in the Saint Clair River with many individuals displaying commonly shared movement histories in terms of timing and channel use.Probable spawning locations were associated with the main river channel upstream of major bifurcations (e.g., Stag and Fawn Islands) in the Saint Clair River and overlapped with areas of high bottom flow. Selection for low flow refugia during migration appears water temperature dependent. Traditional control methods are likely to be inefficient in the SCDRS, highlighting the need for novel supplemental strategies tailored to large river systems.
Keywords: Sea lamprey, acoustic telemetry, Spawning habitat, Great Lakes (North America), Aquatic invasive species (AIS)
Received: 27 Feb 2025; Accepted: 10 Jul 2025.
Copyright: © 2025 Lowe, Jubar, Barber, Hondorp and Holbrook. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Michael R Lowe, United States Geological Survey, Great Lakes Science Center, Millersburg, MI, United States
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