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974 <br />PETERSEN AND PAUKERT <br />from the Columbia River. Canadian Journal of Fish- <br />eries and Aquatic Sciences 48:2491-2498. <br />Vinson, M. R. 2001. Long-term dynamics of an inver- <br />tebrate assemblage downstream of a large dam. Eco- <br />logical Applications 11:711-731. <br />Vogel, J. L., and D. A: Beauchamp. 1999. Effects of <br />light, prey size, and turbidity on reaction distances <br />of lake trout (Salvelinus namaycush) to salmonid <br />prey. Canadian Journal of Fisheries and Aquatic <br />Sciences 56:1293-1297. <br />Ward, D. L., O. E. Maughan, S. A. Bonar, and W. J. <br />Matter. 2002, Effects of temperature, fish length, <br />and exercise on swimming performance of age-0 <br />flannelmouth sucker. Transactions of the American <br />Fisheries Society 131:492-497. <br />Ware, D. M. 1972. Predation by rainbow trout (Salmo <br />gairdneri): the influence of hunger, prey density, and <br />prey size. Journal of the Fisheries Research Board <br />of Canada 29:1193-1201. <br />Young, M. K. 1999. Summer diel activity and movement <br />of adult brown trout in high-elevation streams in <br />Wyoming, U.S.A. Journal of Fish Biology 54:181- <br />189. <br />Transactions of the Americc <br />v Copyright by the Americ <br />DOI: 10.15771704-100.1 <br />Distribu <br />Invertet <br />JULIA <br />Depc <br />Abstract.- <br />(hereafter rei <br />relative to tl <br />temperature, <br />the estuary.] <br />at the mouth <br />implanted wi <br />out of the St <br />in spring 20( <br />collected cot <br />Gulf sturgeo <br />vember throe <br />March throu <br />spring 2002 <br />of known bee <br />Ampelisca sp <br />and examina <br />fall 2001 an( <br />seasons. Cot <br />was less sali <br />primary pre} <br />be potential <br />Anadromous Gu. <br />oxyrinchus desotoi <br />sturgeon) historica <br />areas in the Gulf <br />from Louisiana to <br />1975; Fox et al. 2( <br />2003). Gulf sturge <br />reationally exploit <br />tion closure prohib <br />in 1984 (Huff 197. <br />the Gulf sturgeon i <br />the Endangered Sp <br />populations to self <br />and Wildlife Servi <br />Marine Fisheries ( <br />* Corresponding aut <br />1 Present address: <br />North Carolina State <br />Flex, Raleigh, Nord <br />Received June 14, 20( <br />Published online June