A SURVEY OF MUSSELS (MOLLUSCA: BIVALVIA) IN THE PLATTE RIVER SYSTEM AND ASSOCIATED IRRIGATION AND HYDROPOWER CANAL AND LAKE SYSTEMS WEST OF OVERTON, NEBRASKA

摘要

More than 8,000 specimens of freshwater mussels, repre-salting ten species, were identified from the Platte River, seven irrigation canals and ten canal lakes west of Overton, Nebraska. Only 18 of these identified specimens, represent-ing five species, were collected from the Platte River, indicat-ing the canal and lake systems associated with the Platte River provide more habitat for freshwater mussels than the river. Population estimates for five canals and three lakes are given. A review of previous mussel surveys as well as species lists and hypotheses regarding habitat preferences are discussed.