Variations in zebra mussel (Dreissena polymorpha) veliger densities throughout 1996 at Dam 52 on the lower Ohio River
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Abstract
Zebra mussel veliger densities were monitored throughout 1996 at Lock and Dam 52 on the lower Ohio River near Brookport, IL. The spawning season occurred between mid June and early September with veliger densities peaking at 30,000/m3 in late June. Veliger first appeared at a water temperature of 21° C. When spawning ended in September the water temperature was 22 °C. Veligers were found throughout November when the water temperature was 10 °C. The lowest temperature at which veligers were observed was 7 ° C in March 1996. These results show that the zebra mussels in the lower Ohio River are reproducing naturally and that spawning appears to be synchronous. The presence of larvae at low temperatures in March suggests that veligers are capable of delaying settlement and overwintering in the planktonic stage.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Variations in zebra mussel (Dreissena polymorpha) veliger densities throughout 1996 at Dam 52 on the lower Ohio River |
| Series title | Journal of Freshwater Ecology |
| DOI | 10.1080/02705060.1998.9663617 |
| Volume | 13 |
| Issue | 3 |
| Year Published | 1998 |
| Language | English |
| Publisher | Taylor & Francis |
| Contributing office(s) | Southeast Ecological Science Center |
| Description | 7 p. |
| First page | 255 |
| Last page | 261 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |