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2. Vegetation <br />Cover <br />5 to 18% <br />Ducey 1989 <br />Faanes1983 <br />Gochfeld 1983 <br />Height <br /><2 feet <br />Ziewitz et al. 1992 <br />Ducey 1989 <br />3. Forage <br />Proximity to Forage <br />Fish <br />3.2 km <br />Smith and Renken 1990 <br />Size of Forage Fish <br />210 cm <br />Dirks 1990 <br />Atwood and Kelly 1984 <br />Dugger 1997 <br />Sandpit Habitat <br />1. Sand and Gravel Operation <br />Characteristics <br />2. Proximity to River/Forage <br />Within 1 mile <br />Sidle and Kirsch 1993 <br />Wilson 1991 <br />3. Total Surface Area <br />1.5 to 197 acres (mean =18,3 <br />acres) <br />Sidle and Kirsch 1993 <br />4. Water Surface Area <br />1 to 150 acres (average =27.4) <br />Sidle and Kirsch 1993 <br />12 <br />