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RESULTS AND DISCUSSION In lieu of the traditional "Results and Discussion" section, a separate chapter was devoted to discussing field data collected from 1996-2001 related to each of the objectives previously identified. A separate section was devoted to annual stockings of razorback sucker. Stocking of Razorback Sucker Rationale and Strategy Initially, three different length groups (100-, 200-, 300-mm) of razorback sucker were to be stocked in this study. In some instances, fish smaller than 100 mm were PIT tagged and stocked (e.g., the fall 1995 stocking). Likewise, fish larger than 300 mm were stocked (e.g., excess broodfish and Wahweap-reared fish). Furthermore, it simply was not realistic to expect to produce enough fish of identical length within each of these three size categories because of the variable growth that occurred among rearing locations and within environments (e.g., grow-out ponds) and family lots. Therefore, many of the harvested fish that were eventually stocked overlapped in length among these three length groups. Producing and eventually stocking an equal number of razorback sucker among family lots within year classes was not always feasible. Whenever possible, an equal number of razorback sucker from each family produced from a year-class was stocked. Additionally, when possible, a 50:50 ratio (e.g, equal number) from each family lot was stocked in the Upper Colorado River and Gunnison River. The small-fish group was the smallest fish that could be safely PIT tagged; the large-fish group reflected the largest fish that could be expected to be produced in one year. The different size classes were believed to allow for an assessment of whether survival was related to fish size. A ratio was used to divide fish into size groups equally among family lots based on the assumption that small fish would exhibit higher mortality. To produce the three groups for stocking, a 75:20:5 ratio was used. Biologists believed that these ratios allocated captive-reared fish based on the expectation of survival in the wild, and it was believed that they represented reasonable estimates. It was further assumed that smaller fish would not be expected to survive as well as larger fish and they would be more difficult to collect during followup monitoring efforts. The projected number of razorback sucker needed to evaluate the relation between survival and size at release by size group and river location for 1996-2000 was developed from this ratio (Table 1). Initially, it was acknowledged that the size classes and number projected 13