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2.1.5. Conduct investigations to describe movements and behavior. <br />2.1.6. Map existing areas providing important habitat requirements. <br />2.1.7. Obtain an artist's descriptive key of developing larvae and <br />early juveniles of pallid sturgeon, shovelnose sturgeon, and <br />shovelnose X pallid hybrids. <br />2.1.8. Determine reliable, nonlethal aging techniques. <br />2.2. Research additional solutions to the impacts of man's activities <br />on pallid sturgeon and their habitat. <br />2.2.1. Identify priority areas and needs for restoring the diversity <br />of riverine floodplain habitats. <br />2.2.2. Develop simulation models for operation of main stem Missouri <br />River and tributary dams to benefit pallid sturgeon and provide <br />for other uses. <br />2.2.3. Design multi -level releases from main stem Missouri River <br />reservoirs. <br />2.2.4. Develop pilot projects on selected dams to transport sediment <br />past the dam and into the river reaches downstream. <br />2.2.5. Determine the need for fish bypass facilities. <br />2.2.6. Determine the impact of'sturgeon commercial and sport fishing <br />on pallid sturgeon. <br />2.2.7. Determine the diagnostic characteristics to distinguish between <br />eggs of sturgeon and paddlefish species. <br />2.3. Obtain information on genetic makeup of hatchery- reared and wild <br />Scaphirhynchus stocks. <br />2.3.1. Determine the degree of genetic divergence between <br />Scaphirhynchus species within the range of pallid sturgeon. <br />2.3.2. Identify genetically meaningful management units (stocks) of <br />pallid sturgeon. <br />2.3.3. Determine the extent and management implications of <br />hybridization between Scaphirhynchus species. <br />2.4. Obtain information on population status and trends. <br />21 <br />