Gill nets were used to determine the spatial and seasonal distributions of fishes in Lake Karnpeska (simple morphometry) and at Lake Enemy Swim (complex morphometry), South Dakota. Each season (spring, summer, and autumn) gill nets were randomly placed at littoral and limnetic sites and fished for approximately 24 h. Gill nets were allowed to fish for approximately 24 h. At Lake Karnpeska, 8 1 1 fishes were collected representing 16 species; statistical analyses were completed for five species. A total of 2,881 fishes was collected a t Lake Enemy Swim with analyses completed for seven species. Significant (R0.05) differences between littoral and limnetic gill net catch rates were identified during the spring a t Lake Karnpeska for walleye (Stizostedion vitreum), yellow perch (Percaflavescens), and white sucker (Catostomus commersonl). At Lake Enemy, Swim, significant differences between littoral and limnetic sites occurred for vellow perch (spring and autumn) and rock bass (Ambloplites rnpestris) (summer). Differences between median lengths of littoral and limnetic caught fidhes were identified for white sucker at Lake Kampeska and yellow perch and smallmouth bass (Micropterns dolomieu) a t Lake Enemy Swim. Significant seasonal differences in gill net catch rates and median lengths were identified a t both lakes.