Minnesota Department of Natural Resources

Transcription

1 Minnesota Department of Natural Resources Fisheries Management DRAFT VERSION - PRELIMINARY DATA (AS OF 6/2/2) Lake Name: Yankton Survey Type: Population Assessment DOW Number: 2-7- Survey ID Date: 6/6/2 Lake Identification Alternate Lake Name: Primary Lake Class ID: 3 DNR Sounding Map Number: Alternate Lake Class ID: Lake Location Primary County: Lyon Nearest Town: Balaton Legal Descriptions Lake Center: Township - 9N Range - 2W Section - PLS Section Lake Center: 92 All Legal Descriptions: Lyon County: Township - 9N Range - 2W Sections -, 3,, 23 Area Office Area Name: Region Name: Windom Southern ORG Code: Region Number: F8 Lake Access (Information based on Re-Survey dated 6//99) Ownership Public Use Type Location / Comments AC - DNR Open to Public use Concrete STATE OWNED PUBLIC BOAT ACCESS ON SOUTH END. Lake Characteristics Lake Area (planimetered acres): 387. GIS Lake Area (acres):.33 DOW Lake Area (acres): 382. Littoral Area (acres):.33 Area in MN (acres):.33 Maximum Depth (feet): 8. Mean Depth (feet): (Data excludes records where public use is not designated or is designated "No Public Use") GIS Shoreline Length (miles): Maximum Fetch (miles): Fetch Orientation (degrees): USGS Quad Map Number: V6a USGS Quad 2K GIS Index: 22 Watershed Characteristics Major Watershed Name: Des Moines-Headwaters Watershed Number: 5 Watershed size (acres): 798,595 Minor Watershed Name: From L Yankton Watershed Number: 9 Watershed size (acres): 3,63 Standard Lake Survey Report revision: 3/25/2. Data Date: 6/2/2 at 7: am.

2 DRAFT POPULATION ASSESSMENT DATED 6/6/2 FOR DOW NUMBER 2-7- Surveys And Investigations Initial Survey: 6//985. Re-Survey: 6/9/26, 6//99. Population Assessment: 6/6/2, 6/2/2, 6/7/22, 6/5/998, 6//99. Special Assessment: 3/29/995. Dissolved Oxygen Check: 2/3/23, 2/6/23, /3/23, //22, 2/28/2, //2. Current Water Level Date Level Reading (feet) Reading Type BM - 6/7/2 High -.2 Above or below Benchmark Benchmark and Gauge Descriptions / Locations BM - Location Description Top of west wing on lake side of cement walkway that crosses outlet 5 feet from the lake. Water Level History - Readings Date Level Reading (feet) Reading Type BM - 6/7/2 High -.2 Above or below Benchmark 6/2/2 High -.75 Above or below Benchmark 6/9/26 Normal -.2 Above or below Benchmark GA - 6/2/2 High 2. Direct Gauge Reading 6/9/26 Normal 2.58 Direct Gauge Reading Water Level History - Station Summary Minimum Level Feet Date Maximum Level Feet Date Range (feet) Average Level (feet) Reading Type (and number of readings) BM /9/ /7/ Above or below Benchmark (3) GA /9/ /2/ Direct Gauge Reading (2) Dissolved Oxygen And Temperature Profile Of Lake Water Sampling Date Bottom Depth (Feet) Sample Depth (Feet) Water Temperature ( F) Dissolved Oxygen (ppm) WQ - 6/7/2 Surface Field Measurements Of Water Quality Sampling Date Sample Depth (Feet) Secchi Depth (Feet) Field Alkalinity ph (ppm) Water Color Color Cause WQ - 6/7/2 Surface Brown Grn Algae 2

3 POPULATION ASSESSMENT DATED 6/6/2 FOR DOW NUMBER 2-7- DRAFT Net Catch Summary by Numbers for GN Standard gill net sets Number of Sets: 3 First Set Date: 6/6/2 Last Lift Date: 6/9/2 Target Species: Abbr Species Quartiles for Lake Class 3* Total Fish Number Per Set 25% 5% 75% BIB Bigmouth Buffalo 33 BLB Black Bullhead 3 BLC Black Crappie CAP Common Carp 7 NOP Northern Pike 3 WAE Walleye 25 WTS White Sucker 9 YEB Yellow Bullhead YEP Yellow Perch Total Fish/Set: 2. * Quartiles for Number Per Set Net Catch Summary by Weight for GN Standard gill net sets Abbr Species Total Weight (Pounds) Pounds Per Set Mean Quartiles for Lake Class 3* Weight 25% 5% 75% BIB BLB BLC CAP NOP WAE WTS YEB YEP Bigmouth Buffalo Black Bullhead Black Crappie Common Carp Northern Pike Walleye White Sucker Yellow Bullhead Yellow Perch Total Pounds Fish/Set: * Quartiles for Mean Weight 3

4 DRAFT POPULATION ASSESSMENT DATED 6/6/2 FOR DOW NUMBER 2-7- Net Catch Summary by Numbers for TN Standard 3/-in mesh, double frame trap net sets Number of Sets: 9 First Set Date: 6/6/2 Last Lift Date: 6/9/2 Target Species: Abbr Species Quartiles for Lake Class 3* Total Fish Number Per Set 25% 5% 75% BIB Bigmouth Buffalo BLB Black Bullhead 28 BLC Black Crappie 7 CAP Common Carp 2 NOP Northern Pike WAE Walleye 2 WTS White Sucker YEB Yellow Bullhead YEP Yellow Perch Total Fish/Set: 8.89 * Quartiles for Number Per Set Net Catch Summary by Weight for TN Standard 3/-in mesh, double frame trap net sets Abbr Species Total Weight (Pounds) Pounds Per Set Mean Quartiles for Lake Class 3* Weight 25% 5% 75% BIB BLB BLC CAP NOP WAE WTS YEB YEP Bigmouth Buffalo Black Bullhead Black Crappie Common Carp Northern Pike Walleye White Sucker Yellow Bullhead Yellow Perch Total Pounds Fish/Set: 9.6 * Quartiles for Mean Weight

5 POPULATION ASSESSMENT DATED 6/6/2 FOR DOW NUMBER 2-7- DRAFT Length Frequency Distribution For GN Standard gill net sets (Field work conducted between 6/6/2 and 6/9/2) BIB BLB BLC CAP NOP WAE WTS YEB YEP < = > Total Min. Length Max. Length Mean Length # Measured No Lengths for BIB BLB BLC CAP NOP WAE WTS YEB YEP Note: Unless all fish were measured in the catch, totals shown for some length-frequency distributions may differ from the total number of fish in the catch, due to rounding of fractions used in the estimation of length frequency from a subsample of measured fish. 5

6 DRAFT POPULATION ASSESSMENT DATED 6/6/2 FOR DOW NUMBER 2-7- Length Frequency Distribution For TN Standard 3/-in mesh, double frame trap net sets (Field work conducted between 6/6/2 and 6/9/2) BIB BLB BLC CAP NOP WAE WTS YEB YEP < = > Total Min. Length Max. Length Mean Length # Measured No Lengths for BIB BLB BLC CAP NOP WAE WTS YEB YEP Note: Unless all fish were measured in the catch, totals shown for some length-frequency distributions may differ from the total number of fish in the catch, due to rounding of fractions used in the estimation of length frequency from a subsample of measured fish. 6

7 POPULATION ASSESSMENT DATED 6/6/2 FOR DOW NUMBER 2-7- DRAFT Other Species Gear Type () Other Species (Gender) (2) Total Num Number Measured Length (inches) Min - Mean - Max Number Weighed Weight (pounds) Min - Mean - Max TN Snapping Turtle 2.6 () Key to sampling gear abbreviations: TN = Standard 3/-in mesh, double frame trap net sets (2) Gender: If identified and reported. 7

8 DRAFT POPULATION ASSESSMENT DATED 6/6/2 FOR DOW NUMBER 2-7- Approval Dates And Notices Date Approved By Windom Area Fisheries Supervisor: Date Approved By Southern Region Fisheries Manager: This DRAFT VERSION of the Standard Lake Survey Report contains preliminary data (as of 6/2/2), and is therefore subject to change at any time. Minnesota Department of Natural Resources By accepting the data in this report, the user agrees the data will be used for personal benefit and not for profit. Any other uses or publication of the data needs the consent of the Department. The Minnesota Department of Natural Resources assumes no responsibility for actual or consequential damage incurred as a result of any user's reliance on the data. Standard Lake Survey Report revision: 3/25/2-RJE. Data Date: 6/2/2 at 7: am. 8

9 REPORT OVERVIEW - FOR OFFICE USE ONLY (This page is not part of the Standard Lake Survey Report and should be discarded ) Lake Name: Yankton DOW Number: 2-7- Survey Type: Population Assessment Survey ID Date: 6/6/2 Survey Status: Field Work Complete The following 8 (of 3) report components are not included in this report:. Water Level History¹ 2. Lake Inlets 3. Additional Inlet Information. Lake Outlets 5. Additional Outlet Information 6. Water Control Structure (Dam) 7. Surrounding Watershed Characteristics, Shoreline Characteristics, and Riparian Landscape Observations² 8. Resorts And Campgrounds 9. Fish Spawning Conditions. Erosion And Pollution. Fish Diseases And Parasites 2. Aquatic Vegetation And Shoalwater Substrates 3. Laboratory Analysis Of Water Chemistry. Length At Capture With Last Incremental Length* 5. Back-Calculated Lengths 6. Age Class Frequency Distributions 7. Status Of Fishery And Field Notes 8. Water Quality (Winter Observations) (added to revision /2/2) ¹ Water Level History report: This data has not yet been migrated into the Fisheries LSM database. On /8/29, two additional Water Level History report components (Readings and Station Summary) were added. ² Effective 3/25/2, the Surrounding Watershed Characteristics, Shoreline Characteristics, and Riparian Landscape Observations report component was modified to be included in the Standard Lake Survey report if it did not include any Watershed and Shoreline characteristics and only consisted of Riparian Landscape Observations. * Length At Capture With Last Incremental Length report: The following criteria must be met for a report to be generated:. The fish species must have an assigned body scale constant. 2. Fish must have an "official" age assigned. 3. Fish must have a digitized measurement marked for back calculation use. Note: The data source for Length and Age Class Frequency Distribution tables is updated twice daily - once at noon and once overnight. Any changes to the data made before noon on 6/2/2 may not be reflected in the Distribution tables until after 2:3 pm on 6/2/2. Fisheries Lake ID = 372, Survey ID = Standard Lake Survey Report revision: 3/25/2. Data Date: 6/2/2 at 7: am.