Parts 2 and 3 were life-history studies designed to examine in 
detail the autecology of twoof the unique species: Lepomis 
Symmetrzicus and Etheostoma kennicotti. The study of E. kennicotti 
was begun prior to the initiation of funding by the Forest Service 
but was completed under that funding. The study of L. symmetnricus 
was initiated at the same time as the study of the LaRue-Pine 
Hills fishes and is at pres m@mt incomplete; however, a full year's 
data for L. symmetricus is briefly summarized herein. 
The International Union for the Conservation of Nature (IUCN) 
has publis led a set of definitions incorporating information 
concerning distributions, habitats, ecological tolerances, and 
threatening factors to be used in the assessment of a species' 
Survival status. The definitions relevant to this study are 
the following: 
Endangered: Actively threatened with extinction. Con- 
tinued survival unlikely without the implementation of 
special protective measures. 
Rare: Not under immediate threat of extinction, but 
occurring in such small numbers and/or in such a 
restricted or specialized habitat that it could 
quickly disappear. Requires careful watching. 
In light of these concepts and based on the results of all 
three parts of our investigation, we have formulated a series 
of recommendations for the management of the pertinent aquatic 
ecosy stems in the Shawnee National Forest. 
A Survey of Threatened and/or Unique Fishes 
in the Pine Hills Swamp and New I1linois 
Localities for Endangered Species 
The Pine Hills swamp is a natural undisturbed system having a 
great diversity of plants and animals and is of vital impor- 
tance aS an area containing many species of vanishing native 
wildlife. Thepresent study was a survey of the fish popula- 
tions designed to determine the distributions and abundances of 
unique or threatened fish species throughout the swamp, in- 
Cluding Elas toma zonatum, Lepomis symmetricus, Lepomts punctatus, 
Fundulus notti, and Chologaster agassizi. Attention is brought 
to these five species by an asterisk beside their names when- 
ever they appear in subsequent tables. 
Twelve trips, one per month, were made to the swamp during the 
period of 25 July 1973 to 28 June 1974. Eight permanent 
stations were used as sampling areas (Fig. 1). They included 
