MYSIS-RELICTA COLLECTED IN THE MISSOURI RIVER BELOW LAKE SAKAJAWEA, NORTH-DAKOTA

The first introduction of Mysis relicta in Lake Sakakawea, North Dakot a, occurred in 1974, followed by a second stocking in 1979. No evidenc e of survival and reproduction was immediately apparent. In 1994, seve ral mysids were collected during a ichthyoplankton study in the tailra ce below Garrison Dam, which impounds Lake Sakakawea. Samples were col lected biweekly during the summer of 1994. A total of 32 mysids were o bserved in 23 samples from mid-July through August.