LAKE TANEYCOMO 2008-2009 ANGLER CREEL SURVEY SUMMARY Shane Bush Fisheries Management Biologist Missouri Department of Conservation Southwest Region February 1, 2013
Introduction Lake Taneycomo was formed by the construction of Powersite Dam (Ozark Beach Dam) in 1913 and is Missouri's oldest hydroelectric reservoir. The lake is riverine in nature, 22 miles in length and encompasses 2,080 surface acres. Prior to 1958, Lake Taneycomo supported one of Missouri's best warm-water fisheries. This changed in 1958 when Table Rock Dam, located in the headwater of Lake Taneycomo, began discharging cold hypolimnetic water into Lake Taneycomo. The discharge of cold water changed Lake Taneycomo into a cold-water environment, providing good conditions for trout. Rainbow trout were first stocked into Lake Taneycomo in 1958. Brown trout were first stocked in 1980. Since that time more than 30 million rainbow and brown trout have been stocked. Lake Taneycomo is Missouri's largest and most popular trout fishery. The Lake Taneycomo creel survey was conducted from February 1, 2008 to January 31, 2010. The objectives of the creel were to: 1. Evaluate current fishing regulations and stocking regimes. 2. Augment long term trend information. 3. Assess fish populations in areas of the lake that are not regularly sampled. 4. Evaluate other fish population assessment techniques and results. 5. Determine the effect of water quality conditions on angler use and fishing success. 6. Interact with anglers to assess angler use, attitudes and opinions and to foster partner relationships with anglers. Methods The Lake Taneycomo creel survey for 2008 and 2009 was conducted using a roving creel methodology. To account for suspected differences in aquatic habitat and angling techniques, Lake Taneycomo was divided into three survey zones, with estimates of angling effort, success and preferences conducted independently for each zone. Zone 1 was from the no fishing cable 760 feet below Table Rock Dam downstream to the Missouri Department of Conservation (MDC) boat ramp near Shepherd of the Hills Hatchery (approximately one mile or 36 acres). Zone 2 included the next seven miles to the Highway 65 bridge (295 acres). Zone 2 was further subdivided into two smaller zones, one upstream of Fall Creek and one downstream of Fall Creek, in order to evaluate the effects of the special fishing regulation zone implemented in 1997. Zone 5 included the next 14 miles downstream to Powersite Dam (1,567 acres) (Figure 1). Zone 5 was further subdivided into two smaller zones, which were zones 5a and 5b for sampling purposes. Due to an insufficient number of samples and bias made when selecting Zone 5a or Zone 5b, these zones were not separated in this analysis. For data comparisons in this report, Zone 5 is the same area represented as zones 3 and 4 combined in past angler surveys. Zone 1 is entirely within the special fishing regulation zone upstream of Fall Creek. The special fishing regulation zone includes a 12 to 20-inch protected length limit, or slot, on rainbow trout and an "artificial lures" only restriction in the upper three miles of the lake. Zone 1 includes the most upstream reach of Lake Taneycomo, in an area of aquatic habitat greatly influenced by the operation of Table Rock Dam. During power generation periods, this reach contains deep, swift-moving water. Under these conditions fishing is restricted to shoreline areas and drifting in boats. During nongeneration periods, the entire area becomes a series of shallow, slow-moving pools interspersed with a few short, shallow riffles. Boating is difficult under these conditions and nearly all anglers either 1
wade or fish from the bank. Due to navigation hazards presented by swiftly-flowing water during power generation periods and insufficient water depth during non-generation periods, survey clerks conducted the angler survey in Zone 1 from the shore or by wading. Zone 2 contains deeper water and most fishing is done from boats. The first mile of this zone contains areas shallow enough for wade fishing during non-generation periods, but the remainder of the zone is fished by anglers on the bank, docks or in boats. Zone 2 includes the downstream boundary of both the special fishing regulation area at the mouth of Fall Creek and the downstream boundary of the electrofishing sampling area at the mouth of Short Creek. The upper two miles of Zone 2 are within the special fishing regulation zone while the remainder is located entirely below the special fishing regulation zone. These two subzones are herein referred to as Zone 2:1 and Zone 2:2, respectively. Zone 5 is comprised of mostly deep water with little opportunity for wade fishing. Nearly all fishing in this zone is from the bank, docks or from boats and this zone is outside the special fishing regulation area and the electrofishing sampling area. Because most fishing in zones 2 and 5 is from bank or boat anglers, all interviews were conducted by survey clerks moving through the area in a boat. Twenty survey periods were conducted each month including 10 weekend samples and 10 weekday samples. Sampling days were randomly selected. Four weekend and four weekday samples were conducted each month in Zone 1 and three weekend and three weekday samples for each of the remaining zones. Survey periods were randomly assigned to either morning or afternoon/evening time periods. For the three selected periods assigned to Zone 5, the clerk was randomly assigned to either Zone 5a or 5b, but no sub-zone could be assigned to all three selected periods within a stratum. A further restriction was applied for days when zones 2 and 5 were selected. Only 1 boat was available for conducting the Lake Taneycomo creel survey, so if either of these zones was selected, the other zone (Zone 2 or Zone 5) could not be worked. However, Zone 1 could be worked during the same sampling period as either Zone 2 or Zone 5 within the selected day. Two instantaneous angler and boat counts were made during each selected sampling period at predetermined, randomly selected times. Anglers were surveyed throughout the year. Creel clerks interviewed anglers during 5-7 hour periods, depending on seasonal day length. Anglers were interviewed individually and their responses to a standard series of questions about their fishing effort, success and preferences were recorded (Stanovick and Haverland 1995). Data sheets were collected from the creel clerk at the end of each month, error checked and forwarded to the Resource Science Center in Columbia to be entered into the computer program. Computer data and analysis revealed additional errors that were corrected before final analysis and summaries were generated. Results and Discussion Estimated angler effort in 2008 and 2009 (February 2008 through January 2010) was 395,217 and 470,079 hours per year, respectively. This represents a decrease from the previous creel from 1993 to 2002, wherein angler effort ranged from 510,938 to 709,786 hours per year. Angling effort has decreased by almost half lakewide since the previous creel surveys were conducted (Table 1). Some of this decrease may be attributed to above average lake level elevations in 2008 and 2009 due to high water releases from Table Rock Dam, decreasing fishing trips and making fishing, wade 2
fishing in particular, difficult throughout most of the year. Estimated fishing hours, catch and fishing trips were higher in zones 2 and 5 than in Zone 1 during most months of the year when high water levels were observed (Figures 2-4). Additionally, the highest amounts of angling hours, catch and fishing trips were observed from June through August during both years and have typically been associated with an increase in the number of people vacationing in Branson during the summer, many of whom fish incidentally (Weithman and Haas 1986). Economic conditions negatively impacted the tourism industry in the Branson area in 2008 and 2009. It is likely that this contributed to reduced angler use at Lake Taneycomo during the timeframe of this creel survey. Lake Taneycomo is primarily a trout fishery. Approximately 88 and 92 percent of the fish that anglers caught in 2008 and 2009, respectively, were rainbow trout, with brown trout comprising another 9 and 5 percent of the catch in 2008 and 2009, respectively. A limited fishery for other species is present, particularly black bass in Zone 5 (Table 2, Figure 5). Rainbow Trout Estimated catch of rainbow trout in Lake Taneycomo was 465,275 in 2008 and 538,719 in 2009, similar to the estimated catch of rainbow trout ranging from 319,803 to 639,465 annually from 1993 to 2002 (Table 3). On average, rainbow trout catch rates have increased while harvest has decreased in all zones since regulations were put into effect in 1997 (Tables 3, 5). The statewide limit for rainbow trout was changed from five rainbow trout per day to four rainbow trout per day beginning March 1, 2005. This may also have had an impact on the decrease in harvest of rainbow trout since the previous creel surveys concluded in 2002. Anglers released 82 percent of the rainbow trout they caught in 2008 and 83 percent in 2009, and nearly all of the rainbow trout caught in Zone 1 were released (Table 3). Anglers caught fewer harvestable size rainbow trout in Zone 1 in 2008 and 2009 compared to the average of past creels, but still released over 95 percent of the rainbow trout that they caught (Table 4). Anglers caught 1.32 and 1.26 rainbow trout per hour of effort in 2008 and 2009. Similar to previous creel surveys, catch rates of rainbow trout were highest in Zone 1 and progressively decreased towards the lower sections of the lake (Table 5, Figure 6). Rainbow trout release rates increased while harvest rates decreased in 2008 and 2009, following a similar trend compared to previous creel surveys from 1993-2002. Additionally, catch rates of rainbow trout in Zone 1 in 2008 and 2009 were among the highest observed in any Lake Taneycomo creel survey. Anglers reported that the mean length of rainbow trout they caught ranged from 10.6 to 11.4 inches from 1993-2002. The mean length of rainbow trout caught increased to 12.5 inches in 2008 and 12.9 inches in 2009. Historically, the mean length caught each year in Zone 1 increased from a mean of 11.7 inches in pre-regulation years (1993-1996) to 12.4 inches during regulation years (1997-2002). The mean length of rainbow trout caught in Zone 1 had further increased to 13.1 and 13.5 inches in 2008 and 2009, respectively. Mean length of rainbow trout caught in all other zones has also increased from past creels (Table 6). Size distribution of rainbow trout caught by anglers changed in Zone 1 when the special fishing regulation zone went into effect in 1997. The percentage of fish > 13, 16, and 20 inches increased in Zone 1 following the regulation change while the percentage of fish > 13 and 16 inches remained similar in zones 2, 3 and 4. The percentage of fish in these same size ranges increased in zones 2 and 5 in 2008 and 2009 (Table 7). 3
Using the 2008-2009 creel angler catch data, length frequency histograms were created to show the overall size structure of rainbow trout caught by interviewed anglers in each zone. The overall size and number of rainbow trout caught by anglers was higher in Zone 1 and decreased progressively further down the lake. Measures of the quality of fish, represented by RSD values of 13, 16, and 20 inches, were also higher in the upper sections of the lake and remained similar between 2008 and 2009 (Figure 7, Appendix A). The majority of rainbow trout released in the special fishing regulation zone were within the slot, while rainbow trout released below the special fishing regulation zone were primarily smaller sized fish (< 12 ) (Figure 8). Conversely, very few rainbow trout were harvested within the special fishing regulation zone compared to below the regulation zone (Figure 9). Size structure and RSD values of rainbow trout were very similar among the fish caught by interviewed anglers and fish captured during electrofishing surveys in 2008 and 2009, indicating that our fish population sampling techniques are representative of what anglers catch within the lake (Figures 10-12). Brown Trout Estimated catch of brown trout was 18,546 in 2008 and 9,786 in 2009, and ranged from 13,251 to 52,787 from 1993-2002. Most brown trout were caught in the special fishing regulation zone (zones 1 and 2:1) and nearly all were released (Tables 2 and 8, Figure 5). The highest catch rate of brown trout was in Zone 1 in 2008 at 0.29 fish per hour, and decreased progressively through 2009 (Table 9). Numbers of brown trout caught in zones 2 and 5 were also much lower than in previous creels. The mean length of brown trout caught by anglers in 2008 was 13.9 and increased to 15.0 in 2009, higher than the average mean length of 12.9 from the 1997-2002 creels (Table 10). On average, the sizes of brown trout caught by anglers in 2008 and 2009 were larger than in the previous 1993-2002 creel surveys, but fewer brown trout were caught (Table 11). Size distribution of brown trout caught by anglers during 2008 and 2009 closely resembled that of electrofishing surveys conducted during both years (Figure 13). Black Bass Black bass comprised 3 and 6 percent of the angling effort in Zone 5 in 2008 and 2009, respectively, and less than 1 percent in zones 1 and 2 (Table 2, Figure 5). Therefore, the following statistics are derived from Zone 5 only. Fishing pressure for black bass, based on angler preference, was 7.4 hours per acre in 2008 and 7.0 hours per acre in 2009 (Table 12). Black bass ranked third in preference for anglers in Zone 5 during both survey years and largemouth bass were the primary species caught. The catch rate of largemouth bass was 0.32 fish per hour in 2008 and 0.46 fish per hour in 2009. Harvest rate of largemouth bass was relatively low at 0.06 fish per hour in 2008 and 0.03 bass per hour in 2009. The mean length of largemouth bass harvested was 14.1 and 15.5 inches in 2008 and 2009, respectively. Additionally, anglers released 76 percent of the largemouth bass they caught in 2008 and 93 percent in 2009. Using the 2008-2009 creel angler catch data, length frequency histograms were created to show the lengths of largemouth bass caught by interviewed anglers in Zone 5. For all largemouth bass caught by interviewed anglers, PSD12 was 76% in 2008 and 92% in 2009. RSD15 was 19% in 2008 and 39% in 2009. RSD15 values are very similar to those calculated from electrofishing surveys in 2008 but higher than in 2009 (RSD15 of 21% and 24% in 2008 and 2009, respectively) (Figure 14, Appendix A). Timing of electrofishing sampling for largemouth bass in lower Lake 4
Taneycomo is difficult to predict due to cold water temperatures that persist even during the spring spawning season. As a result, electrofishing surveys may not accurately depict the size structure of largemouth bass caught by anglers in the lower section of the lake (Figure 14). The mean length of largemouth bass caught by interviewed anglers was 12.6 inches in 2008 and 14.1 inches in 2009. Maximum length of largemouth bass caught by interviewed anglers was 18.1 inches in 2008 and 21.0 inches in 2009. Only 10 percent of the rainbow trout harvested in the special fishing regulation zone in 2008 were harvested illegally (N = 9), and less than one percent were harvested illegally in 2009 (N = 1). While not a stated objective, another possible benefit of the creel survey whether real or perceived, is the deterrent to illegal activities due to the increased presence of a Conservation Department representative on the lake. Management Implications The current regulations that were put into effect in 1997 have produced significant results that have improved the quality of the trout fishery in Lake Taneycomo. Anglers are currently catching more and larger rainbow trout compared to before the regulations went into effect (Tables 3-7). These regulations should be maintained as outlined in the 2010 Lake Taneycomo Management Plan. Current levels of fishing pressure and rainbow and brown trout catch rates fall within the established management objectives and continue to be appropriate throughout the lake (Table 13). The current stocking regime of 700,000 rainbow trout and 15,000 brown trout should continue to be maintained, as well as the current monthly, planned stocking adjustments that coincide with the current monthly estimated fishing hours and catch (Figures 2-3). It is worth noting that since the special regulations went into effect in 1997, angling pressure and harvest of rainbow trout has decreased along with an increase in rainbow trout catch rates, release rates and the mean length of fish caught (Tables 1, 3, 5-6). It could be possible that a further decrease in the number of rainbow trout stocked each year could provide even more potential for growing larger rainbow trout for anglers to catch, but might also have unintended, negative effects on catch and harvest rates. Dissolved oxygen levels in Lake Taneycomo typically fall to very low levels from September through December each year. Trout fishing success in Lake Taneycomo declines when dissolved oxygen levels drop below 6 mg/l (Weithman and Haas 1986). This was evident in October 2008 when dissolved oxygen readings below Table Rock Dam were at or below 4 mg/l during periods of generation and near zero during periods of non-generation (Figure 15). This decrease in dissolved oxygen corresponded with a decrease in angler catch rates (Figure 6). This trend was not seen in Zone 1 in 2009 due to the combination of hydropower and floodgate releases from Table Rock Dam that helped to keep the dissolved oxygen levels above 6 mg/l throughout October. Additionally, an increase in catch rates, combined with a decrease in angling pressure during this same timeframe, suggests that many anglers were fishing in the hatchery outlets in Zone 1 where fish were congregated in large numbers as a result of higher levels of dissolved oxygen. In addition to adhering to National Pollution Discharge Elimination System (NPDES) standards, the MDC Shepherd of the Hills Hatchery discharges water into Lake Taneycomo through these outlets with dissolved oxygen concentrations ranging between 8 and 12 ppm. Decreases in catch rates were observed downstream in Zone 2 in October during both years, while catch rates were not as affected in Zone 5. Weithman and Haas (1984) observed this same 5
trend. Water quality began to improve in November of 2008 and 2009, and the low dissolved oxygen season ended in December during both years. Acknowledgements The 2008-2009 Lake Taneycomo creel survey was a cooperative effort between Fisheries personnel of the Missouri Department of Conservation's Southwest Region and Resource Science Center. In particular, Matt Mauck and Andy Austin assisted with designing the study and carrying out day to day activities, Martha McCrary, Steve Sheriff and Sherry Gao managed the database and generated survey reports and Linda Williams conducted all data entry. Angler survey clerks were Robert Murphy, Warren Camp, Richard Garrison and David Dean. 6
LITERATURE CITED Stanovick, J. S. and P. Haverland. 1995. Standardization of Missouri Angler Surveys. Proceedings of the Annual Conference of Southeastern Fish and Wildlife Agencies 49:69-77. Weithman, A. S. and M. Haas. 1984. Effects of Dissolved-Oxygen Depletion on the Rainbow Trout Fishery in Lake Taneycomo, Missouri. Transactions American Fisheries Society. 113: 109-124. 15 pp. 7
Table 1. Estimated fishing effort at Lake Taneycomo, 1993-2002 and 2008-2009.back to text Zone Category Year Preregulation Hours 1 2 3 4 5 ALL 1993 42,286 199,529 182,656 86,467 269,123 510,938 1994 71,297 282,490 214,182 127,380 341,562 695,349 1995 75,315 295,480 180,743 117,350 298,093 668,888 1996 52,621 261,599 150,477 98,977 249,454 563,674 MEAN (1993-1996) 60,380 259,775 182,015 107,544 289,558 609,712 Regulation Hours 1997 42,504 269,122 125,834 90,611 216,445 528,071 1998 55,771 267,129 147,810 116,337 264,147 587,047 1999 64,324 296,239 192,356 118,709 311,065 671,628 2000 80,257 309,643 188,309 111,543 299,852 689,752 2001 79,822 328,090 189,827 112,047 301,874 709,786 2002 87,799 292,859 176,825 106,570 283,395 664,053 MEAN (1997-2002) 68,413 293,847 170,160 109,303 279,463 641,723 2008 54,731 156,217 - - 184,269 395,217 2009 49,017 281,001 - - 140,061 470,079 Preregulation Hours/Acre 1993 1,257 676 250 104 172 269 1994 1,980 958 293 153 218 366 1995 2,092 1,002 248 141 190 352 1996 1,462 887 206 119 159 297 MEAN (1993-1996) 1,677 881 - - 185 321 Regulation Hours/Acre 1997 1,181 912 172 109 138 278 1998 1,549 905 202 140 169 309 1999 1,788 1,004 264 143 199 354 2000 2,229 1,050 258 134 191 363 2001 2,217 1,112 260 135 193 374 2002 2,439 993 242 128 181 350 MEAN (1997-2002) 1,900 996 - - 178 338 2008 1,520 530 - - 118 208 2009 1,362 953 - - 89 248 8
Table 2. Estimated percent of catch by species at Lake Taneycomo, 1993-2002 and 2008-2009. back to text Zone Species 1 2 3 4 All 1993-1996 Rainbow Trout 82.46 93.68 94.69 92.72 92.09 Brown Trout 16.91 6.06 1.45 0.98 5.59 Suckers 0.58 0.25 2.95 1.42 1.20 Black Bass - 0.00 0.38 2.48 0.55 Sunfish 0.02-0.43 2.20 0.52 Carp 0.01 0.00 0.02 0.14 0.03 Crappie 0.02-0.07 0.06 0.03 White Bass 0.01-0.01 0.00 0.00 Channel Catfish 0.01 - - - 0.00 1997-2003 Rainbow Trout 85.90 92.40 89.69 90.32 90.15 Brown Trout 13.92 6.81 2.22 0.58 6.52 Suckers 0.16 0.71 4.12 1.98 1.45 Black Bass 0.01 0.05 1.43 5.01 1.05 Sunfish - 0.02 2.28 1.85 0.74 Carp - 0.01 0.05 0.07 0.03 Crappie 0.01-0.11 0.05 0.03 White Bass 0.00 0.01 0.11 0.14 0.05 Channel Catfish - - - 0.01 0.00 2008 Zone 1 Zone 2 (Total) Zone 2:1 Zone 2:2 Zone 5 ALL Rainbow Trout 80.01 95.14 91.62 96.34 94.65 87.94 Brown Trout 17.58 2.78 5.81 1.75 0.18 9.13 Suckers 0.34 1.00 0.34 1.22 1.13 0.72 Black Bass 0.54 0.56 1.37 0.29 2.85 1.07 Sunfish 0.74 0.26 0.51 0.17 0.77 0.6 Carp - 0.17-0.23 0.24 0.11 Crappie 0.23 - - - 0.12 0.13 White Bass 0.4 - - - 0.06 0.2 Channel Catfish - - - - - - Walleye 0.17 0.09 0.34 - - 0.11 2009 Rainbow Trout 88.57 97.16 96.52 97.38 90.98 92.22 Brown Trout 10.83 1.93 3.18 1.51 0.96 5.37 Suckers 0.17 0.61 0.15 0.76 1.79 0.7 Black Bass 0.17 0.15 0.15 0.15 5.85 1.46 Sunfish 0.17 0.08-0.10 0.18 0.15 Carp - 0.08-0.10 0.18 0.07 Crappie - - - - - - White Bass - - - - 0.06 0.01 Channel Catfish 0.03 - - - - 0.01 Walleye 0.03 - - - - 0.01 9
Table 3. Estimated catch and harvest of rainbow trout from Lake Taneycomo, 1993-2002 and 2008-2009. back to text Category Preregulation Catch Year Zone 1 2 3 4 5 All 1993 36,458 132,999 106,499 60,040 166,539 335,996 1994 57,198 151,042 93,497 68,482 161,979 370,219 1995 48,895 136,108 76,259 55,248 131,507 316,510 1996 38,646 150,166 76,923 66,412 143,335 332,147 MEAN (1993-1996) 45,299 142,579 88,295 62,546 150,840 338,718 Regulation Catch 1997 41,481 157,942 63,815 56,568 120,383 319,803 1998 59,643 146,304 76,301 78,066 154,367 360,314 1999 104,330 227,314 118,998 91,254 210,252 541,896 2000 165,596 291,572 113,342 68,955 182,297 639,465 2001 119,468 298,538 116,114 81,398 197,512 615,518 2002 129,438 219,463 101,903 70,553 172,456 521,357 MEAN (1997-2002) 103,326 223,522 98,412 74,466 172,878 499,726 2008 131,604 192,439 - - 141,232 465,275 2009 109,112 324,932 - - 104,675 538,719 Preregulation Harvest 1993 10,911 107,601 95,262 52,949 148,211 266,723 1994 19,032 118,858 85,658 59,402 145,060 282,950 1995 17,122 114,198 68,873 50,039 118,912 250,232 1996 15,034 115,812 70,298 58,073 128,371 259,217 MEAN (1993-1996) 15,525 114,117 80,023 55,116 135,139 264,781 Regulation Harvest 1997 5,107 114,755 56,532 49,610 106,142 226,004 1998 3,432 104,758 65,304 64,177 129,481 237,671 1999 1,731 122,333 93,300 70,547 163,847 287,911 2000 2,061 142,304 83,135 52,326 135,461 279,826 2001 2,086 134,472 77,656 56,179 133,835 270,393 2002 842 101,943 67,836 50,595 118,431 221,216 MEAN (1997-2002) 2,543 120,094 73,961 57,239 131,200 253,837 2008 736 67,278 - - 91,387 159,401 2009 123 117,465 - - 64,891 182,479 10
Table 3. (continued) Category Year Zone 1 2 3 4 5 All Preregulation Catch Per Acre 1993 984 453 146 72 106 178 1994 1,544 514 128 83 103 196 1995 1,358 451 104 66 84 168 1996 1,043 511 106 80 91 176 MEAN (1993-1996) 1,258 483 - - 96 178 Regulation Catch Per Acre 1997 1,152 535 87 68 77 169 1998 1,657 496 105 94 99 191 1999 2,898 771 164 110 134 287 2000 4,600 989 155 83 116 338 2001 3,319 1,012 159 98 126 326 2002 3,595 744 140 85 110 276 MEAN (1997-2002) 2,870 758 110 263 2008 3,656 652 - - 90 245 2009 3,031 1,101 - - 67 284 Preregulation Percent Released 1993 70 19 10 11-20 1994 67 21 8 13-24 1995 66 16 10 9-21 1996 61 23 9 13-22 Regulation Percent Released 1997 87 27 11 12-29 1998 94 28 14 18-34 1999 98 54 22 23-30 2000 99 51 27 24-56 2001 98 55 33 31-56 2002 99 53 33 28-57 2008 99 68 - - 40 82 2009 99 70 - - 40 83 11
Table 4. Catch of harvestable size rainbow trout (>20 inches and <12 inches) in Zone 1 of Lake Taneycomo, 1993-2002 and 2008-2009. back to text 20 < 12 Year Harvested Released Percent Released Harvested Released Percent Released 1993 5 5 50 839 454 35 1994 11 8 42 766 1,242 62 1995 10 18 64 738 1,543 68 1996 6 8 57 1,084 1,752 62 Mean (1993-1996) 8 10 55 857 1,248 59 1997 10 25 71 495 2,008 80 1998 8 37 82 360 2,328 87 1999 9 126 93 146 2,973 95 2000 8 178 96 184 7,285 98 2001 12 149 93 181 4,487 96 2002 3 174 98 67 2,726 98 Mean (1997-2002) 8 157 95 145 4,368 97 2008 3 56 95 46 1,368 97 2009 3 111 97 9 919 99 12
Table 5. Rainbow trout release, harvest and total catch rates (per hour) by trout anglers fishing Lake Taneycomo, 1993-2002 and 2008-2009. back to text Zone Category Year 1 2 3 4 5 All Preregulation Release Rate 1993 0.60 0.13 0.06 0.08-0.20 1994 0.54 0.11 0.04 0.07-0.16 1995 0.42 0.07 0.04 0.05-0.12 1996 0.45 0.13 0.04 0.09-0.15 Regulation Release Rate 1997 0.85 0.16 0.05 0.08-0.23 1998 1.01 0.16 0.08 0.12-0.26 1999 1.59 0.35 0.14 0.18-0.46 2000 2.04 0.48 0.16 0.15-0.64 2001 1.47 0.50 0.20 0.23-0.55 2002 1.46 0.40 0.20 0.19-0.52 2008 2.24 0.70 - - 0.24 1.08 2009 1.96 0.66 - - 0.29 1.05 Preregulation Harvest Rate 1993 0.26 0.54 0.51 0.61-0.48 1994 0.27 0.42 0.40 0.48-0.40 1995 0.23 0.39 0.38 0.44-0.37 1996 0.29 0.44 0.47 0.60-0.46 Regulation Harvest Rate 1997 0.12 0.43 0.46 0.55-0.41 1998 0.06 0.39 0.45 0.57-0.39 1999 0.03 0.41 0.44 0.60-0.41 2000 0.03 0.46 0.44 0.47-0.38 2001 0.03 0.41 0.42 0.51-0.36 2002 0.01 0.35 0.39 0.48-0.31 2008 0.01 0.33 - - 0.37 0.24 2009 0.003 0.29 - - 0.42 0.22 Preregulation Catch Rate 1993 0.86 0.67 0.57 0.69-0.68 1994 0.81 0.53 0.44 0.55-0.56 1995 0.65 0.46 0.42 0.49-0.49 1996 0.74 0.47 0.51 0.69-0.61 Regulation Catch Rate 1997 0.98 0.59 0.51 0.63-0.64 1998 1.07 0.55 0.53 0.68-0.65 1999 1.62 0.77 0.62 0.77-0.86 2000 2.07 0.94 0.60 0.62-1.01 2001 1.50 0.91 0.61 0.73-0.91 2002 1.47 0.75 0.58 0.66-0.84 2008 2.25 1.03 - - 0.62 1.32 2009 1.96 0.96 - - 0.72 1.26 13
Table 6. Mean total lengths (inches) of rainbow trout caught from Lake Taneycomo, 1993-2002 and 2008-2009. back to text 14 Zone Category Year 1 2 3 4 5 All Preregulation Harvested 1993 11.7 11.6 11.5 11.3-11.5 1994 11.8 11.2 11.3 11.3-11.3 1995 11.9 11.6 11.4 11.7-11.6 1996 11.3 11.2 11.2 11.3-11.2 1993-1996 Mean 11.7 11.4 11.3 11.4-11.4 Regulation Harvested 1997 11.4 11.4 11.2 11.3-11.3 1998 11.3 11.2 11.2 11.1-11.2 1999 11.4 10.8 10.8 10.7-10.8 2000 11.3 10.5 10.5 10.7-10.6 2001 11.0 10.6 10.5 10.6-10.6 2002 11.2 10.9 10.7 10.9-10.9 1997-2002 Mean 11.3 10.8 10.8 10.8-10.8 2008 11.8 12.0 - - 11.9 12.5 2009 13.8 12.3 - - 12.3 12.3 Preregulation Released 1993 11.7 10.7 9.9 9.4-11.2 1994 11.6 10.7 9.6 9.3-11.0 1995 11.5 10.1 10.2 9.1-10.8 1996 10.7 9.9 9.3 9.3-10.2 1993-1996 Mean 11.4 10.2 9.7 9.3-10.8 Regulation Released 1997 12.1 10.7 9.8 10.0-11.4 1998 12.5 11.0 10.4 9.4-11.7 1999 12.5 10.4 8.8 8.6-11.3 2000 11.9 9.5 8.5 8.4-10.8 2001 12.3 9.6 8.4 8.2-10.7 2002 13.3 10.4 8.8 8.2-11.2 1997-2002 Mean 12.4 10.1 8.8 8.6-11.2 2008 13.1 11.7 - - 10.8 12.6 2009 13.5 12.2 - - 11.4 13.0 Preregulation All Rainbow Trout 1993 11.7 11.1 11.1 11.1-11.3 1994 11.6 11.4 11.3 11.4-11.4 1995 10.9 10.9 11.0 11.0-10.9
Table 6. (continued) Zone Category Year 1 2 3 4 5 All 1996 11.5 11.1 11.2 11.1-11.2 1993-1996 Mean 11.7 11.6 11.5 11.3-11.1 Regulation All Rainbow Trout 1997 12.0 11.2 11.0 11.1-11.3 1998 12.4 11.1 11.1 10.8-11.4 1999 12.5 10.6 10.3 10.2-11.1 2000 11.8 10.0 10.0 10.2-10.7 2001 12.3 10.0 9.8 9.9-10.6 2002 13.2 10.6 10.1 10.2-11.4 1997-2002 Mean 12.4 10.5 10.3 10.4-11.0 2008 13.1 11.8 - - 11.5 12.5 2009 13.5 12.2 - - 11.9 12.9 15
Table 7. Percent of rainbow trout >13 inches, >16 inches, >20 inches and total number of fish caught by anglers interviewed by survey clerks at Lake Taneycomo, 1993-2002 and 2008-2009. back to text Area Zone 1 Year Percent of Catch >13 >16 >20 Catch of Interviewed Anglers 1993 21.9 1.2 0.3 3110 1994 22.6 1.2 0.4 4556 1995 20.6 1.9 0.7 4278 1996 6.9 0.6 0.4 3814 1997 37.4 1.8 0.7 5060 1998 47.9 5.1 0.7 6569 1999 43.6 10.9 1.5 9342 2000 30.3 6.4 1.2 15428 2001 40.2 10.5 1.5 11053 2002 60.0 18.9 1.6 10762 2008 54.3 10.2 0.7 8449 2009 63.3 12.5 1.4 8604 Zone 2 1993 10.3 0.4 0.1 3678 1994 6.3 0.2 0.1 6437 1995 15.1 0.6 0.1 6951 1996 4.1 0.2 0.2 8031 1997 7.5 0.2 0.1 7947 1998 7.1 0.2 0.0 9670 1999 11.0 1.3 0.1 11453 2000 6.9 0.8 0.1 14368 2001 6.8 0.5 0.1 13840 2002 16.0 2.7 0.3 10538 2008 24.9 3.6 0.2 3987 2009 32.8 4.0 0.1 5031 16
Table 7. (continued) Area Zone 3 Zone 4 Year Percent of Catch >13 >16 >20 Catch of Interviewed Anglers 1993 9.5 0.6 0.1 2975 1994 6.3 0.3 0.2 3662 1995 13.3 0.4 0.0 3954 1996 5.2 0.2 0.0 4039 1997 4.9 0.1 0.1 3908 1998 4.4 0.2 0.0 4510 1999 6.0 0.4 0.1 5682 2000 4.1 0.5 0.1 5839 2001 4.2 0.5 0.1 5969 2002 6.6 0.4 0.1 5163 1993 6.8 0.3 0.1 2193 1994 5.4 0.6 0.3 3537 1995 16.4 0.7 0.2 3447 1996 7.1 0.2 0.1 4396 1997 5.5 0.2 0.0 3821 1998 4.0 0.2 0.1 4873 1999 4.7 0.4 0.1 5447 2000 6.0 0.4 0.1 4383 2001 4.3 0.2 0.0 5445 2002 6.6 0.3 0.0 4387 Zone 5 2008 17.8 1.2 0.1 2143 2009 22.0 2.0 0.2 1909 17
Table 8. Estimated catch and harvest of brown trout from Lake Taneycomo, 1993-2002 and 2008-2009. back to text Zone Category Year 1 2 3 4 5 All Preregulation Catch 1993 11,930 3,980 1,575 1,141 2,716 18,626 1994 12,843 17,147 1,379 387 1,766 31,664 1995 7,018 9,521 1,499 626 2,125 18,664 1996 5,433 6,367 952 499 1,451 13,251 MEAN (1993-1996) 9,306 9,254 1,351 663 2,015 20,551 Regulation Catch 1997 4,952 10,195 490 178 668 15,815 1998 9,107 11,393 2,369 433 2,802 23,302 1999 24,815 23,129 4,341 502 4,843 52,787 2000 24,386 23,528 3,570 897 4,467 52,381 2001 17,467 19,737 2,276 643 2,919 40,123 2002 19,809 10,975 1,579 209 1,788 32,572 2008 15,341 2,962 - - 243 18,546 2009 4,993 3,966 - - 827 9,786 Preregulation Harvest (>20 inches) 1993 59 109 36 163 199 367 1994 63 23 0 19 19 105 1995 81 39 19 0 19 139 1996 61 75 0 15 15 151 MEAN (1993-1996) 66 62 14 49 63 191 Regulation Harvest (>20 inches) 1997 33 - - - 0 33 1998 18-68 16 84 102 1999 34 79 21-21 134 2000 11 20 19 15 34 65 2001 21 22 19-19 62 2002 24 - - 32 32 56 2008 39 67 - - - 106 2009 - - - - - - 18
Table 8. (continued) Category Preregulation Released (>20 inches) Year Zone 1 2 3 4 5 All 1993 445 470 215 27 242 1,157 1994 226 188 0 0 0 414 1995 151 20 136 0 136 307 1996 152 34 0 15 15 204 MEAN (1993-1996) 244 178 88 11 98 521 Regulation Released (>20 inches) 1997 172 39 - - 0 211 1998 173 15-32 32 220 1999 458 218 21 17 38 714 2000 343 - - - 0 343 2001 475 86-0 561 2002 1,179 83 20-20 1,282 2008 753 113 - - - 866 2009 288 10 - - - 298 Preregulation Percent Released 1993 99.4 97.3 97.7 85.7 92.7 98 1994 99.5 99.9 100 95.1 98.9 100 1995 98.8 99.0 98.7 100 99.1 98.9 1996 98.9 98.8 100 96.9 99.0 98.9 (MEAN 1993-1996) 99.3 99.3 99.0 92.6 96.9 99.1 Regulation Percent Released 1997 99.2 100 100 100 100 99.7 1998 99.8 99.6 99.4 96.3 97.0 99.3 1999 99.9 99.2 98.5 100 99.6 99.5 2000 99.7 99.9 98.9 98.2 99.2 99.7 2001 99.9 99.6 98.3 90.7 99.3 99.5 2002 99.7 99.6 93.7 84.6 98.2 99.3 2008 99.7 97.7 - - 100 99.4 2009 100 100 - - 100 100 19
Table 9. Brown trout release, harvest and total catch rates (per hour) by trout anglers fishing Lake Taneycomo, 1993-2002 and 2008-2009. back to text Zone Category Year 1 2 3 4 5 All Preregulation Release Rate (<20 inches) Regulation Release Rate (<20 inches) Preregulation Release Rate (>20 inches) Regulation Release Rate (>20 inches) 1993 0.27 0.02 0.01 0.01-0.07 1994 0.18 0.06 0.01 <0.01-0.06 1995 0.09 0.03 0.01 0.01-0.03 1996 0.10 0.02 0.01 <0.01-0.03 1997 0.11 0.04 <0.01 <0.01-0.04 1998 0.16 0.04 0.02 <0.01-0.05 1999 0.38 0.08 0.02 <0.01-0.10 2000 0.30 0.08 0.02 0.01-0.09 2001 0.21 0.06 <0.01 <0.01-0.07 2002 0.21 0.04 <0.01 <0.01-0.06 2008 0.28 0.02 - - 0.00 0.10 2009 0.10 0.01 - - 0.01 0.04 1993 0.01 <0.01 <0.01 <0.01 - <0.01 1994 <0.01 <0.01 - <0.01 - <0.01 1995 - - <0.01 - - <0.01 1996 <0.01 <0.01 - <0.01 - <0.01 1997 <0.01 <0.01 - - - <0.01 1998 <0.01 <0.01 - <0.01 - <0.01 1999 <0.01 <0.01 <0.01 <0.01 - <0.01 2000 <0.01 - - - - <0.01 2001 <0.01 <0.01 - - - <0.01 2002 0.01 <0.01 <0.01 - - <0.01 2008 0.01 0.00 - - - 0.00 2009 0.01 0.00 - - 0.00 0.00 20
Table 9. (continued) Zone Category Year 1 2 3 4 5 All Preregulation Harvest Rate (>20 inches) 1993 <0.01 <0.01 <0.01 <0.01 - <0.01 1994 <0.01 <0.01 - <0.01 - <0.01 1995 <0.01 <0.01 <0.01 - - <0.01 1996 <0.01 <0.01 - <0.01 - <0.01 Regulation Harvest Rate (>20 inches) 1997 <0.01 - - - - <0.01 1998 <0.01 - <0.01 <0.01 - <0.01 1999 <0.01 <0.01 <0.01 - - <0.01 2000 <0.01 <0.01 <0.01 <0.01 - <0.01 2001 <0.01 <0.01 <0.01 <0.01 - <0.01 2002 <0.01 - - <0.01 - <0.01 2008 0.00 0.00 - - - 0.00 2009 - - - - - - Preregulation Catch Rate 1993 0.28 0.02 0.01 0.01-0.07 1994 0.18 0.06 0.01 <0.01-0.06 1995 0.09 0.03 0.01 0.01-0.03 1996 0.10 0.02 0.01 <0.01-0.03 Regulation Catch Rate 1997 0.11 0.04 0.02 <0.01-0.04 1998 0.16 0.04 0.02 <0.01-0.05 1999 0.39 0.08 0.02 <0.01-0.10 2000 0.3 0.08 0.03 <0.01-0.09 2001 0.22 0.06 0.01 <0.01-0.07 2002 0.23 0.04 <0.01 <0.01-0.06 2008 0.29 0.02 - - 0.00 0.10 2009 0.11 0.01 - - 0.01 0.05 21
Table 10. Mean total lengths (inches) of brown trout caught from Lake Taneycomo, 1993-2002 and 2008-2009. back to text Zone Category Year 1 2 3 4 5 All Preregulation Harvested (>20 inches) 1993 21.5 20.6 22.0 - - 22.3 1994 21.1 23.0-21.0-21.6 1995 22.8 23.0 21.0 - - 22.6 1996 24.3 21.9-25.7-23.5 1993-1996 Mean 22.9 22.0 21.5 23.3-22.6 Regulation Harvested (>20 inches) 1997 21.5 - - - - 27.5 1998 30.1 - - 26.0-28.5 1999 24.5 21.6 20.3 - - 22.5 2000 22.0 21.0 20.2 23.5-21.6 2001 23.5 22.0 20.2 - - 22.3 2002 25.0 - - 23.0-24.0 1997-2002 Mean 23.9 21.6 20.2 23.9-23.0 2008 21.4 24.7 - - - 22.7 2009 - - - - - - Preregulation Released 1993 13.7 14.3 13.2 8.8-13.6 1994 14.0 13.1 13.1 13.8-13.6 1995 14.4 13.5 14.6 13.3-14.0 1996 13.7 13.3 12.0 14.7-13.5 1993-1996 Mean 13.9 13.5 13.2 12.2-13.7 Regulation Released 1997 14.3 13.5 12.7 14.3-13.9 1998 13.3 12.8 13.0 14.3-13.1 1999 12.1 12.4 11.8 13.7-12.2 2000 12.6 12.4 13.1 11.9-12.6 2001 13.3 12.4 13.0 12.2-13.0 2002 14.4 12.5 12.9 13.2-13.9 1997-2002 Mean 13.1 12.6 12.7 12.9-12.9 2008 13.8 14.0 - - 12.0 13.8 2009 15.1 14.3 - - 13.9 15.0 22
Table 10. (continued) Zone Category Year 1 2 3 4 5 All Preregulation Catch 1993 13.8 14.4 13.4 9.0-13.6 1994 14.0 13.1 13.1 14.1-13.6 1995 14.5 13.5 14.6 13.3-14.1 1996 13.8 13.4 12.0 15.0-13.6 1993-1996 Mean 14.0 13.6 13.2 12.3-13.8 Regulation Catch 1997 14.4 13.5 12.7 14.3-13.9 1998 13.3 12.8 13.1 14.8-13.1 1999 12.1 12.4 11.9 13.7-12.2 2000 12.6 12.4 13.1 12.1-12.6 2001 13.3 12.4 13.0 12.0-13.0 2002 14.4 12.5 12.9 14.7-13.9 1997-2002 Mean 13.1 12.6 12.7 13.1-12.9 2008 13.8 14.3 - - 12.0 13.9 2009 15.1 14.3 - - 13.9 15.0 23
Table 11. Percent of brown trout >13 inches, >16 inches, >20 inches and total number of fish caught by anglers interviewed by survey clerks from Lake Taneycomo, 1993-2002 and 2008-2009. back to text Year Percent of Catch >13 >16 >20 Catch of Interviewed Anglers Zone 1 1993 71.8 15.8 1.3 1018 1994 80.5 22.4 1.8 1023 1995 77.7 28.7 3.7 642 1996 77.3 14.5 3.9 537 1997 91.1 22.2 4.1 604 1998 72.5 13.5 2.1 1003 1999 32.6 10.8 2.0 2222 2000 42.9 9.6 1.5 2272 2001 54.7 17.1 2.8 1616 2002 72.2 29.9 6.1 1647 2008 64.6 25.1 3.9 1076 2009 81.9 37.2 8.6 503 Zone 2 1993 74.5 26.4 8.2 110 1994 78.0 7.1 0.4 731 1995 68.1 15.6 0.4 486 1996 68.3 13.5 1.8 341 1997 68.8 16.2 0.4 513 1998 60.2 6.4 0.1 753 1999 43.3 9.2 0.3 1165 2000 44.1 5.8 0.1 1159 2001 42.5 9.5 0.5 915 2002 43.8 12.1 0.8 527 2008 64.5 23.7 6.6 76 2009 73.6 34.0 0.0 53 24
Table 11. (continued) Year Percent of Catch >13 >16 >20 Catch of Interviewed Anglers Zone 3 1993 63.6 11.4 2.3 44 1994 57.4 11.1 0.0 54 1995 93.0 37.2 2.3 43 1996 56.0 8.0-50 1997 70.0 3.3-30 1998 65.7 6.4 0.7 140 1999 27.2 3.4 1.0 206 2000 52.7 23.4 0.5 184 2001 53.8 14.5 0.9 117 2002 56.3 17.5 1.3 80 Zone 4 1993 7.9 2.6 2.6 38 1994 85.0 15.0 5.0 20 1995 71.8 10.3-39 1996 93.9 33.3 6.1 33 1997 83.3 25.0-12 1998 88.9 25.9 11.1 27 1999 60.0 36.7 3.3 30 2000 40.4 12.3 1.8 57 2001 39.5 11.6-43 2002 69.2 23.1 15.4 13 Zone 5 2008 33.3 - - 3 2009 81.3 18.8 0.0 16 25
Table 12. Lake Taneycomo Zone 5 creel summary for black bass and sunfish. Black Bass 2008 2009 Estimated Hours/A 7.4 7.0 % Angler Preference by Hours 7.3 9.9 Catch Rate Total No/Hr 0.32 0.46 Harvest Rate No/Hr 0.06 0.03 Estimated Catch No/A 1.68 0.55 Estimated Harvest No/A 0.53 0.14 Mean Length Harvested 14.1 15.5 % Legal Fish Released 76 93 Sunfish Estimated Hours/A 0.1 - % Angler Preference by Hours 0.1 - Catch Rate Total No/Hr 1.63 - Harvest Rate No/Hr 1.63 - Estimated Catch No/A 0.88 0.74 Estimated Harvest No/A 0.30 - Mean Length Harvested 6.9 - % Released 46 100 back to text 26
Table 13. Estimated Fishing Hours and Catch Rates above and below Fall Creek, 2008-2009. Year Above Fall Creek Objective Estimated Trout Fishing Hours 2008 96,605 100,000 301,851 300,000 2009 115,128 100,000 358,819 300,000 back to text Below Fall Creek Objective Lakewide Objective Rainbow Trout Catch Rate 2008 2.20 > 2.0 0.72 0.73 1.32 2009 1.95 > 2.0 0.72 0.73 1.26 Rainbow Trout Harvest Rate 2008 0.02 0.38 0.38 0.24 2009 <0.01 0.39 0.38 0.22 Brown Trout Catch Rate 2008 0.25 0.01 0.10 0.10 2009 0.10 0.01 0.05 0.10 Brown Trout Harvest Rate 2008 <0.01 <0.01 <0.01 2009 0 0 0 27
Figure 1. Angler survey zones at Lake Taneycomo. back to text 28
Estimated Fishing Hours Estimated Fishing Hours 90,000 2008 Estimated Fishing Hours Lake Taneycomo Creel Survey 80,000 70,000 60,000 50,000 40,000 30,000 20,000 Zone 1 Zone 2 Zone 5 All Zones 10,000 0 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan RBT Stocked 90,000 2009 Estimated Fishing Hours Lake Taneycomo Creel Survey 80,000 70,000 60,000 50,000 40,000 30,000 20,000 Zone 1 Zone 2 Zone 5 All Zones 10,000 0 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan RBT Stocked Figure 2. Estimated monthly fishing hours at Lake Taneycomo, 2008-2009. back to text 29
Estimated Catch (All Fish) Estimated Catch (All Fish) 140,000 2008 Estimated Catch Lake Taneycomo Creel Survey 120,000 Zone 1 100,000 80,000 60,000 Zone 2 Zone 5 40,000 All Zones 20,000 0 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan RBT Stocked 140,000 2009 Estimated Catch Lake Taneycomo Creel Survey 120,000 Zone 1 100,000 80,000 60,000 40,000 Zone 2 Zone 5 All Zones 20,000 0 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan RBT Stocked Figure 3. Estimated monthly catch of all fish in Lake Taneycomo, 2008-2009. back to text 30
Estimated Fishing Trips Estimated Fishing Trips 35,000 2008 Estimated Fishing Trips Lake Taneycomo Creel Survey 30,000 Zone 1 25,000 20,000 15,000 10,000 Zone 2 Zone 5 All Zones 5,000 0 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan 35,000 2009 Estimated Fishing Trips Lake Taneycomo Creel Survey 30,000 Zone 1 25,000 20,000 15,000 10,000 Zone 2 Zone 5 All Zones 5,000 0 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Figure 4. Estimated monthly fishing trips in Lake Taneycomo, 2008-2009. back to text 31
2008 2009 Zone 1 Rainbow Trout Brown Trout Suckers Black Bass Sunfish Carp Crappie White Bass Channel Catfish Walleye Zone 1 Rainbow Trout Brown Trout Suckers Black Bass Sunfish Carp Crappie White Bass Channel Catfish Walleye Zone 2 Rainbow Trout Brown Trout Suckers Black Bass Sunfish Carp Crappie White Bass Channel Catfish Walleye Zone 2 Rainbow Trout Brown Trout Suckers Black Bass Sunfish Carp Crappie White Bass Channel Catfish Walleye Zone 5 Rainbow Trout Brown Trout Suckers Black Bass Sunfish Carp Crappie White Bass Channel Catfish Walleye Zone 5 Rainbow Trout Brown Trout Suckers Black Bass Sunfish Carp Crappie White Bass Channel Catfish Walleye Figure 5. Estimated percent catch by species at Lake Taneycomo, 2008-2009. back to text 32
Estimated Catch Rate (Fish/Hour) Estimated Catch Rate (Fish/Hour) 4.50 2008 Monthly Estimated Catch Rates Lake Taneycomo Creel Survey 4.00 3.50 3.00 2.50 2.00 1.50 1.00 Zone 1 Zone 2 Zone 5 0.50 0.00 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan All Zones 4.50 4.00 2009 Monthly Estimated Catch Rates Lake Taneycomo Creel Survey 3.50 3.00 2.50 2.00 1.50 1.00 Zone 1 Zone 2 Zone 5 0.50 0.00 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan All Zones Figure 6. Monthly estimated catch rates of rainbow trout in Lake Taneycomo, 2008-2009. back to text 33
Figure 7. Length frequency histograms by zone for rainbow trout caught in Lake Taneycomo, 2008-2009. back to text 34
Figure 8. Length frequency histograms for rainbow trout released above and below special regulation zone in Lake Taneycomo, 2008-2009. back to text 35
Figure 9. Length frequency histograms for rainbow trout harvested above and below special regulation zone in Lake Taneycomo, 2008-2009. back to text 36
Figure 10. Length frequency histograms for rainbow trout in special regulation zone at Lake Taneycomo, 2008-2009, angler creel survey and electrofishing. back to text 37
Figure 11. Length frequency histograms for rainbow trout below special regulation zone at Lake Taneycomo, 2008-2009, angler creel survey and electrofishing. back to text 38
Figure 12. Length frequency histograms for rainbow trout at Lake Taneycomo, 2008-2009, angler creel survey and electrofishing. back to text 39
Figure 13. Length frequency histograms for brown trout at Lake Taneycomo, 2008-2009, angler creel survey and electrofishing. back to text 40
Figure 14. Length frequency histograms for largemouth bass 2008-2009, electrofishing and angler creel data. back to text 41
Figure 15. Dissolved oxygen levels and water temperature in upper Lake Taneycomo near Table Rock Dam from 10/18/08 10/24/08. back to text 42
Appendix A. Fish population parameters. back to text Rainbow Trout RSD (13): The percentage of rainbow trout > 13 that are also > 11. RSD (16): The percentage of rainbow trout > 16 that are also > 11. The objective range is 5-10%. RSD (20): The percentage of rainbow trout > 20 that are also > 11. Brown Trout RSD (13): The percentage of rainbow trout > 13 that are also > 11. RSD (16): The percentage of rainbow trout > 16 that are also > 11. RSD (20): The percentage of rainbow trout > 20 that are also > 11. The objective range is 3-6%. Largemouth bass PSD12: The percentage of largemouth 8 that are also 12. The objective range is 45%. RSD15: The percentage of largemouth 8 that are also 15. Bluegill PSD: The percentage of bluegill 3 that are also 6. The objective range is 30%. RSD8: The percentage of bluegill 3 that are also 8. 43