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<br />IV.A.l.Razorback sucker. <br />IV .A. I .a. Develop experimental augmentation plan and seek Program acceptance. <br />IV.A. Lb. Implement experimental augmentation plan. <br />IV.A. I.b.(2). Monitor and evaluate results; make recommendations regarding <br />further augmentation. <br /> <br />VI. Accomplishment ofFY 2002 Tasks and Deliverables, Discussion ofInitial Findings and <br />Shortcomings: <br /> <br />A. FY -2002 Tasks and Deliverables: Tasks. 3-4. <br /> <br />Task 3. Analyze and evaluate data; prepare annual progress report. <br />Task Completed. <br /> <br />Task 4. Prepare draft and final report. <br />Task Completed. <br /> <br />B. Findings: No field work was conducted during FY -2002. <br /> <br />Conclusions (taken from the draft final report) <br /> <br />1. The number ofrazorback sucker recaptured that were stocked at lengths Jess than 200 <br />mm was low, and therefore, post-stocking survival was probably related to the size of <br />razorback sucker stocked. Larger size-classes (> 200 nun) had a higher recapture rate <br />than did razorback sucker stocked at smaller sizes. This was substantiated by a single <br />family lot (1992-2A) that had the highest return of any other family lot stocked; the <br />average length at stocking was 343 mm TL. Stocking razorback sucker smaller than <br />200 mm may be futile because it is asswned that their post-stocking performance (i.e., <br />survival) in the wild was poor. Greater returns and thus higher survival may be <br />obtained if larger (> 200 mm), but fewer, razorback sucker are stocked into riverine <br />environments. <br /> <br />2. Dispersal following stocking was predominantly downstream from the release site <br />indicating that domestic-produced razorback sucker were very susceptible to <br />downstream drift. <br /> <br />3. Recaptured razorback sucker were most frequently collected from backwater habitats <br />(65%) than any other habitat type. <br /> <br />4. Electrofishing appears to be a practical method for monitoring stocked razorback <br />sucker because many habitats within extensive river reaches can be sampled over a <br />shorter-period of time than with other gear types. However, it remains uncertain <br />whether electrofishing is the most efficient method because it is size-selective (i.e., <br />selects for larger fish). For the most part, while different gear types were used to <br /> <br />FY 2002 Annual Report 50 Page - 2 <br />