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Exhibit "D" <br />IR Impoundment #18 Management Plan <br />May 1942 <br />3. FAUNA. On four occasions in 1992 (Feb. 15, Apr. 4,11,25) a variety <br />of standard sampling techniques (e.g., seine, box trap, heart trap, cast <br />net) were used to determine the qualitative make-up of fish and <br />macrocrustaceans occurring in the impoundment and provide some <br />density estimates. Figure 5 shows the location of the sampling stations <br />and Tables 2a -c list the organisms collected (or observed), their relative <br />numbers and size range. <br />Within Impoundment #18, the typical marsh resident fish were <br />collected It is interesting to also note the large numbers of Lucania <br />parva (rainwater killifish) present probably because of the overall lower <br />salinities here. Also note the presence of tarpon and striped mullet both <br />in the impoundment and lagoon at the pump station location. It is <br />expected that with culverts connecting the marsh and lagoon, transient <br />fish use of the impoundment will increase. <br />Although the Freshwater Pond is not part of the impoundment per se, its <br />close proximity provides additional habitat diversity in the area. In <br />Table 2c note that 5 species were collected there including bluegill. This <br />pond is a favorite for alligators. <br />Both wildfowl and waterfowl commonly use Impoundment #18. Long- <br />time IRMCD field crew members verify that this marsh has long been a <br />favorite among duck hunters. The present occurrence of duck blinds <br />there further verifies this fact.. On our numerous sampling trips to this <br />marsh, many ducks were observed along with the typical marsh birds - <br />Brown Pelican, White Pelican, Great Blue Heron, Tricolored Heron, <br />Snowy Egret, Great Egret, White Ibis, Osprey, several passerine species <br />and hundreds of Turkey Vultures! The avifaunal- diversity of this area <br />is impressive. <br />4. CONSIDERATION FOR ENDANGERED SPECIES. The April 1, <br />1991 "Official Lists of Endangered and Potentially Endangered Fauna <br />and Flora in Florida", which is published by the Florida Game and <br />Fresh Water Fish Commission (FGFWFC), provides a summary of <br />plants and animals listed by several agencies. Using the designated <br />status as defined by the FGFWFC and the USFWS, below are animals <br />which occur on that list which have been observed or in our opinion are <br />capable of occurring at Impoundment #1. <br />7 <br />