We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Veliger presence in residual water – assessing this pathway risk for Minnesota watercraft.
- Authors
Montz, Gary; Hirsch, Jodene
- Abstract
Zebra mussels (Dreissena polymorpha) have moved to many inland waters across the U.S. and trailered recreational watercraft are suggested as a significant pathway for spread. Uncertainty exists on whether veligers in residual water (water remaining in boats after draining) are capable of creating new infestations. Over 100 samples of residual water from boats which were exiting Minnesota lakes with established zebra mussel populations were collected in July and August over three boating seasons (2013–2015). The majority of the boats were sport fishing boats, with most of the samples coming from live wells and bilges. Very few veligers were found in these samples, with over 90% of the samples containing 5 or fewer veligers, and 70% had zero veligers. Residual water volumes were generally less than 400 ml, and there was no correlation between volumes of water and numbers of veligers. Due to factors such as low veliger density, dispersion and high veliger mortality, residual water may present a low risk for spread of this invasive species.
- Subjects
ZEBRA mussel; MUSSELS; DREISSENA; BOATING &; the environment; MARINE resources conservation; AQUATIC resources conservation
- Publication
Management of Biological Invasions, 2016, Vol 7, Issue 3, p235
- ISSN
1989-8649
- Publication type
Article
- DOI
10.3391/mbi.2016.7.3.03