Zebra Mussels

Publisher: USGS | Science Center: Upper Midwest Environmental Sciences Center (UMESC, LaCrosse) | Format: URL

www.umesc.usgs.gov — Zebra mussels have caused drastic declines in native clam and mussel populations in some locations. Zebra mussels compete with other invertebrates and young fish for plankton, the primary food source for these groups. UMESC scientists are investigating the effects zebra mussels are having on the riverine ecosystem. This study examines the effects More... Zebra mussels have caused drastic declines in native clam and mussel populations in some locations. Zebra mussels compete with other invertebrates and young fish for plankton, the primary food source for these groups. UMESC scientists are investigating the effects zebra mussels are having on the riverine ecosystem. This study examines the effects of fish predation on zebra mussels. After examining the stomach contents of fish found near zebra mussel samplers, the investigators concluded that at least five fish species are consuming zebra mussels in the Upper Mississippi River. Other scientists have researched how zebra mussels have altered the distribution and migration routes of diving ducks. Less...