Waubay Lake Site Description South Dakota-Books Pdf

Waubay Lake Site Description South Dakota
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Figure 1 Map depicting access locations and depth contours for Waubay Lake Day. County South Dakota, Figure 2 Map depicting geographic location of several Day County South Dakota lakes. including Waubay Lake top Also noted are state owned public access locations and. standardized net locations for Waubay Lake bottom WAFN frame nets WAGN gill nets. Management Objectives, 1 Maintain a moderate density smallmouth bass population with a PSD of 40 70 and a. PSD P of 10 40, 2 Maintain a mean gill net CPUE of stock length walleye 10 a PSD of 30 60 and a. PSD P of 5 10, 3 Maintain a mean gill net CPUE of stock length yellow perch 30 a PSD of 30 60 and. a PSD P of 5 10, 4 Maintain a mean frame net CPUE of stock length black bullhead 100.
Results and Discussion, Waubay Lake a meandered lake located in Day County South Dakota is. comprised of four previously distinct waters North Waubay South Waubay Spring. Lake and Hillebrands High water conditions since the mid 1990s have connected. these four lakes and formed a single lake Waubay Lake Currently the surface area. of Waubay Lake exceeds 15 000 acres and has a maximum depth of 31 ft A portion. of Waubay Lake is located within the boundaries of the Waubay National Wildlife. Refuge Figure 1 Neither boating nor fishing is allowed within the refuge boundaries. during open water periods however fishing is allowed during the winter months. Currently Waubay Lake is primarily managed for smallmouth bass walleye and. yellow perch however a variety of fish species including but not limited to black. crappie bluegill northern pike rock bass and white bass may contribute to the fishery. Table 2 In recent years white bass have become an increasingly important. component of the fishery, Primary Species, Smallmouth bass Spring night electrofishing to monitor smallmouth bass. population parameters in Waubay Lake is scheduled to be conducted biennially during. odd years e g 2015 2017 2019 In 2015 the mean CPUE for stock length. smallmouth bass was 8 0 Table 1 and represents a substantial decrease from the 98 0. observed in 2013 Table 2 The observed decline may be the result of sampling. variability and does not necessarily indicate a decrease in relative abundance. Smallmouth bass ranged in TL from 26 to 41 cm 10 2 in to 16 1 in Small. sample size limits the utility of size structure and condition data. Walleye Walleye were the most abundant species in the 2015 gill net catch. The mean gill net CPUE of stock length walleye was 14 1 Table 1 and above the. minimum objective 10 stock length walleye net night Table 3 Since 2006 the. mean gill net CPUE has ranged from a low of 11 1 2012 to a high of 34 4 2007 Table. 2 Based on the 2015 gill net CPUE relative abundance is considered high. Gill net captured walleye ranged in TL from 20 to 45 cm 7 9 to 17 7 in had a. PSD of 8 and a PSD P of 0 Table 1 Figure 3 Both the PSD and PSD P were below. management objective ranges of 30 60 and 5 10 indicating a population skewed. towards smaller individuals Table 3 Figure 3 Reductions in PSD values in each of. the past two surveys can be attributed in large part to growth of individuals from the. relatively strong 2011 cohort into the stock quality length category 25 38 cm 10 15 in. Table 4 Table 5 Figure 3, Since 2006 otoliths have been collected from a sub sample of gill net captured. walleye Age structure information suggested that natural recruitment has contributed. to the population e g 2008 2010 and 2013 however the strongest year classes. tend to coincide with fry stockings Table 4 Table 6 Five year classes 2005 2009. 2011 and 2013 2014 were represented in the 2015 gill net catch individuals from the. strong 2011 cohort comprised 89 of walleye sampled Table 4 Despite the stocking. of 8 million fry in 2012 and 8 5 million fry in 2014 it appears that only weak cohorts. were produced Table 4 In 2015 survey results suggest limited survival of stocked or. naturally produced walleye as no age 0 walleye were captured in gill nets and only one. individual was sampled during fall night electrofishing i e mean CPUE of 2 0 Table 1. Table 4 Table 6 However mean fall night electrofishing CPUE for age 0 walleye in. 2011 was low when a strong cohort was produced Table 2 Table 4 Walleye fry. stocked in 2009 2011 and 2014 were marked with Oxytetracycline OTC so that the. contribution of stocked fish could be evaluated The estimated stocking contribution for. the 2009 year class was 90 Table 4 In 2011 and 2014 OTC marking suggested. that natural reproduction contributed a higher proportion of fish to year classes. produced estimated stocking contributions were 14 and 62 respectively but. sample size was low and results should be interpreted with caution Table 4. Walleye growth in Waubay Lake tends to be highly variable Table 5 Since. 2006 the weighted mean TL at capture of age 4 walleye has ranged from 331 to 402. mm 13 0 to 15 8 in Table 5 In 2015 the weighted mean TL at capture of age 4 fish. was 331 mm 13 0 in and the lowest reported since 2006 Table 5 A slight. decreasing trend in walleye condition was apparent as TL increased those in the stock. quality length category had a mean Wr of 86 while those in quality preferred length. category had a mean Wr of 81, Yellow Perch The mean gill net CPUE of stock length yellow perch was 19 5. Table 1 and below the minimum objective 30 stock length perch net night Table 3. Since 2006 the gill net CPUE of stock length yellow perch has fluctuated from a low of. 11 1 2012 to a high of 42 8 2007 Table 2 The 2015 gill net CPUE represented an. increase from the 2014 CPUE of 18 5 Table 2 but still indicated moderate relative. Gill net captured yellow perch ranged in TL from 12 to 31 cm 4 7 to 12 2 in with. a high proportion being quality length 20 cm 8 in Figure 5 The PSD was 83 and. the PSD P was 38 both exceeded management objectives of 30 60 and 5 10 Table 3. Otoliths collected from a sub sample of gill net captured individuals suggested. consistent recruitment with seven consecutive year classes 2008 2014 represented. Table 7 Year classes produced in 2011 2012 were the most abundant and. collectively comprised 59 of perch in the gill net catch Table 7. Yellow perch in Waubay Lake display moderate growth and typically approach or. surpass quality length 20 cm 8 in by age 2 Table 8 Since 2009 weighted mean TL. at capture values for age 2 yellow perch have ranged from 186 to 216 mm 7 3 to 8 5. in while the weighted mean TL at capture for age 3 fish has ranged from 233 to 249. mm 9 2 to 9 8 in Table 8 In 2015 the weighted mean TL at capture was lower than. previous years at both ages 2 and 3 with values of 190 and 236 mm 7 5 in to 9 3. Table 8 Condition of gill net captured perch was high with mean Wr values that. ranged from 112 to 120 for all length categories e g stock to quality sampled No. length related trend in Wr was observed the mean Wr of stock length yellow perch was. 117 Table 1, Other Species, Lake Herring Lake Herring were first captured from Waubay Lake during 2002.
and have been sampled in low numbers annually from 2006 2015 Table 2 In 2015. the mean gill net CPUE of stock length Lake Herring was 0 3 Table 1 Gill nets. captured two individuals with TL values of 23 cm and 42 cm 9 1 and 16 5 in. Northern Pike Northern pike typically are not sampled effectively during. standardized mid summer fish community surveys As a result mean gill net CPUE. values are often low From 2006 2015 northern pike relative abundance has generally. been low with mean gill net CPUE values 1 0 Table 2 In 2015 the mean gill net. CPUE was 0 4 Table 1 as three stock length individuals that ranged from 73 to 89 cm. 28 7 to 35 0 in were captured, No age or growth information was collected Few inferences can be made. concerning size structure and condition due to the low sample size. White bass White bass were first sampled in Waubay Lake during 2001 and. have become an important component of the fishery In 2015 mean CPUE value for. stock length white bass in gill nets was 23 9 Table 1. White bass ranged in TL from 8 to 42 cm 3 1 in to 16 5 in had a PSD of 100. and a PSD P of 99 Table 1 Limited recruitment and relatively fast growth to quality. and preferred lengths contribute to the high size structure. No age and growth information was available in 2015 A decreasing trend in. condition was apparent as TL increased mean Wr values ranged from 79 to 99 for all. 10 mm length groups sampled, Other Black bullhead common carp and rock bass were captured in low. numbers during the 2015 survey Table 1, Management Recommendations. 1 Conduct fish population assessment surveys utilizing gill nets on an annual basis next. survey scheduled in summer 2016 and frame nets every third year next survey. scheduled in summer of 2017 to monitor fish relative abundance fish population size. structures fish growth and stocking success, 2 Conduct fall night electrofishing on an annual basis to monitor age 0 walleye relative. 3 Stock walleye 500 fry acre to establish additional year classes if gill netting and or. fall night electrofishing CPUE of age 0 walleye results warrant i e low gill net CPUE of. sub stock 25 cm 10 in walleye and or fall night electrofishing CPUE of age 0. walleye 75 fish hour, 4 Collect otoliths from walleye and yellow perch and scales from smallmouth bass to.
assess age structure and growth rates of each population. 5 Conduct spring night electrofishing on a biennial basis odd years to monitor. smallmouth bass population parameters, 6 Consider enhancements that would improve shore fishing opportunities at the Kanago. Public Access Area i e fishing pier fishing platforms etc. 7 Consider removal of the protective slot regulation on smallmouth bass Regulation is. unnecessary on Waubay Lake and difficulty in consistently sampling smallmouth. bass limits our ability to effectively evaluate special regulations. Table 1 Mean catch rate CPUE gill frame nets catch net night electrofishing. catch hour of stock length fish proportional size distribution of quality PSD and. preferred length PSD P fish and mean relative weight Wr of stock length fish for. various fish species captured in experimental gill nets frame nets and electrofishing in. Waubay Lake 2015 Confidence intervals include 80 percent CI 80 or 90 percent. CI 90 BLB black bullhead COC common carp LAH lake herring NOP northern. pike ROB rock bass SMB smallmouth bass WAE walleye WHB white bass. WHS white sucker YEP yellow perch, Abundance Stock Density Indices Condition. Species CPUE CI 80 PSD CI 90 PSD P CI 90 Wr CI 90, BLB 0 1 0 2 0 0 127. COC 0 1 0 2 100 100 119, LAH 0 3 0 2 100 0 50 50 122. NOP 0 4 0 3 100 0 100 0 77 4, ROB 0 4 0 3 100 0 0 111 13.
WAE 14 1 4 9 8 4 0 85 1, WHB 23 9 7 3 100 0 99 1 97 2. YEP 19 5 3 4 83 5 38 7 117 1, Electrofishing, SMB 8 0 1 8 88 24 38 35 85 5. Spring night electrofishing for SMB, Fall night electrofishing WAE catch rate CPUE represents age 0 walleye not stock length. Table 2 Historic mean catch rate CPUE gill frame nets catch net night. electrofishing catch hour of stock length fish for various fish species captured in. experimental gill nets frame nets and electrofishing in Waubay Lake 2006 2015. BLB black bullhead BLC black crappie BLG bluegill COC common carp LAH. lake herring NOP northern pike ROB rock bass SMB smallmouth bass SPS. spottail shiner WAE walleye WHB white bass WHS white sucker YEP yellow. Species 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015. Frame nets, BLB 3 8 1 7 0 8 0 9 0 8 0 4 1 5 3 5 2 0. BLC 0 2 0 2 0 3 0 1 0 2 0 3 1 3 1 5 2 6, BLG 0 1 0 2 0 1 0 1 0 6 0 7 0 9 0 4 0 3.
COC 0 7 1 1 0 4 0 3 0 5 0 5 0 5 0 3 0 2, NOP 0 2 0 4 0 8 0 7 0 4 0 1 0 2 0 3 0 6. ROB 0 0 0 1 0 3 0 7 0 9 0 6 0 9 2 6 1 2, SMB 2 1 6 3 1 9 3 4 6 3 6 1 5 1 6 2 3 5. WAE 9 7 8 3 6 1 5 4 5 5 3 1 2 9 2 5 2 8, WHB 9 1 6 6 3 2 7 1 3 1 6 5 5 1 3 8 2 5. WHS 0 7 0 4 0 1 0 2 0 1 0 1 0 1 0 1 0 1, YEP 0 1 0 1 0 0 0 3 0 2 0 1 0 1 0 1 0 0. BLB 0 3 0 6 0 0 0 1 0 0 0 5 4 3 4 1 1 4 0 1, BLG 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0.
COC 1 9 1 5 0 6 0 0 0 8 0 1 0 5 0 0 0 5 0 1, LAH 2 3 1 9 0 6 1 5 4 3 1 0 0 1 0 4 0 3 0 3. NOP 0 1 0 0 0 0 0 1 0 1 0 0 0 1 0 5 1 0 0 4, ROB 0 0 0 0 0 0 0 0 0 3 0 5 1 4 1 3 2 0 0 4. SMB 0 0 0 4 0 9 0 1 0 1 0 1 0 0 0 3 0 3 0 0, SPS 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0. WAE 13 5 34 3 28 8 12 4 16 0 15 9 11 1 11 8 19 3 14 1. WHB 0 3 2 0 4 6 0 3 0 9 2 9 1 5 17 6 8 1 23 9, WHS 0 0 0 3 0 1 0 0 0 4 0 0 0 0 0 3 0 1 0 0. YEP 27 6 42 8 32 4 13 8 19 8 27 6 28 1 21 9 18 5 19 5. Electrofishing, SMB 40 4 98 0 8 0, WAE 2 0 0 0 5 0 88 0 0 0 6 0 5 0 1 0 15 0 1 2.
Monofilament gill net mesh size change 0 75 1 00 1 25 1 50 2 00 and 2 50. All fish sizes, Spring night electrofishing SMB, Fall night electrofishing WAE catch rate CPUE represents age 0 Walleye not stock length. Table 3 Mean catch rate CPUE gill frame nets catch net night electrofishing. catch hour proportional stock density of quality PSD and preferred length PSD P. fish and relative weight Wr for selected species captured in experimental gill nets. frame nets and electrofishing in Waubay Lake 2006 2015 BLB black bullhead. SMB smallmouth bass WAE walleye YEP yellow perch, Species 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Objective. Frame nets, CPUE 4 2 1 1 1 1 2 4 2 100, PSD 96 98 96 100 83 91 78 73 100. PSD P 90 87 96 100 78 45 13 37 94, Wr 83 86 86 96 92 84 93. Waubay Lake Site Description Location Water designation number WDN 22 0031 00 Legal description T122N R54 W Sec 4 6 T122N R55W Sec 1 5 7 10 15 19 T123N R53W Sec 17 20 T123N R54W Sec 7 18 20 29 32 T123N R55W Sec 12 14 23 28 31 36 County ies Day Location from nearest town Southeast of Grenville SD Survey Dates and Sampling Information Survey dates June 3 2015 EF SMB August

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