Laserfiche WebLink
Results <br />Selenium concentrations in algae, rotifer, and fish <br />Selenium concentrations in algae, rotifer, and fish increased with dissolved exposure <br />(Table 1; Fig. 1). Algae concentrations ranged from <0.183 to 5.61 µg/g. Rotifer concentrations <br />ranged from < 0.702 to 8.24 µg/g. Razorback sucker concentrations ranged from 3.33 to <br />12.9 µg/g and were generally higher than flannelmouth sucker, 3.43 to 10.2 µg/g. <br />Fish survival in ELS tests <br />Reduced survival of fish in response to selenium exposure was not detected over the <br />concentration range and duration studied (Table 2; Fig. 2). Survival ranged from 95 to 100% for <br />razorback sucker and 82.5 to 100% for flannelmouth sucker. Statistical analysis did not detect an <br />effect from selenium exposure (p = 0.4028) but did detect a difference in survival between <br />species (p < 0.0001; Table 3). The species difference in survival was due to lower overall <br />survival of flannelmouth sucker in experimental treatments and was not a result of selenium <br />exposure. <br />Fish growth in ELS tests <br />Analysis of growth in terms offish mass at the end of the experiment showed that there <br />was an effect from selenium exposure (Table 2; Fig. 2). Fish mass increased as a function of <br />12 <br />