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<br />ww <br /> <br />On-site studies will be conducted in a mobile laboratory <br />concurrently with the in situ studies. The larvae will be held <br />in water and fed plankton collected from the site. The test <br />water will be renewed daily with composited water collected as <br />described above. The plankton will be collected and fed to the <br />fish as described above. Groups of larvae will be stocked into <br />replicate vessels filled with site water, A sample of larvae not <br />used in the tests will taken for selenium residue analysis. The <br />fish will be tested for 30 days. Mortality will be monitored <br />daily and the surviving fish will be measured for total length <br />and weight. The surviving fish will then be saved for selenium <br />(and other inorganics) residue analysis. Ammonia, conductivity, <br />dissolved oxygen, and pH will be measured daily in each test <br />vessel. <br />In addition to testing razorback suckers, larval <br />flannelmouth suckers and fathead Einnows may be tested at each <br />site to assess there potential as surrogates for razorback <br />suckers. These fish will be tested as described above. <br /> <br />8 <br />