Recent Lake Survey Summaries

Here are preliminary summaries of recent sampling not yet posted on LakeFinder, or survey types not found there. Different gear target fish species and sizes quite differently; for example, northern pike and walleye are better caught by gill nets, while bluegill are better caught with trap nets. Values of black crappie might be from either net type. Spring ("ice-out") sampling targets northern pike, walleye, or muskellunge. Our net-based surveys under-sample largemouth bass; electrofishing better evaluates bass abundances and size structures, but requires extra sampling with different equipment.

Go To Other Surveys From 2007-2014

Preliminary Survey Results 2016

(Updated July 6, 2016)  Below, listed alphabetically, are preliminary summaries from 2016 lake surveys.

Lake Rebecca (Hennepin Co.) pdf

Reitz Lake (Carver Co.) pdf

Electrofishing 2016

We sampled using electrofishing--  running electricity through the water with a specialized boat at night-- in late spring to target-sample largemouth bass; summary results in table below.  Also check full survey results (above).

Lake (County) Date Species Number per hour Average length (in) / % over 15 inches Max length (in)
Eagle (Hennepin)
  May 16
LMB 31 11.4   /   18% 18.9
Independence (Hennepin)
  May 17
LMB 62 8.6   /   2% 16.1
Wasserman (Carver)
  May 19
LMB 62 11.6   /   27% 20.5
Minnewashta (Carver)
  May 24
LMB 84 10.5   /   14% 20.1
Minnetonka (Hennepin)
  May 30
LMB 76 9.9   /   8% 18.4


Spring Sampling 2016

Soon after ice-out, we checked Lake Independence to see size composition of muskellunge (muskie) and larger adult walleye using oversized trap nets. Results are from 38 net lifts at 10 locations.

Fish Species Number Average Length (in) Length Range (in)
Independence Muskellunge 10 44.4 36.3 - 51.7
(Hennepin) Walleye 218 18.8 10.6 - 28.5
3 / 21-25 / 16

Note:  muskellunge sizes-- two under 40 inches, three 40-44.9 inches, four 45-49.9 inches, one over 50 inches


Preliminary Survey Results 2015

(Updated September 2, 2015; all field sampling completed)  Below, listed alphabetically, are preliminary summaries from 2015 lake surveys.  New for 2015-- most special-sampling results, particularly bass-electrofishing tallies, are included.

Cedar Lake (Scott Co.) pdf

Lotus Lake (Carver Co.) pdf

McMahon [Carls] Lake (Scott Co.) pdf

Mitchell Lake (Hennepin Co.) pdf

Parley Lake (Carver Co.) pdf

Lower Prior Lake (Scott Co.) pdf

Upper Prior Lake (Scott Co.) pdf

Lake Riley (Hennepin Co.) pdf

Round Lake (Hennepin Co.) pdf

Spring Lake (Scott Co.) pdf

Staring [Starring] Lake (Hennepin Co.) pdf

Lake Zumbra (Carver Co.) pdf

Spring Sampling 2015

Soon after ice-out, we checked Lower Prior Lake to see size and age composition of larger adult walleye and northern pike. We also measured any largemouth bass captured. Results are from 40 total net locations.

Fish Species Number Average Length (in) Max. Length (in)
Lower Prior Walleye 165 18.3 26.6
(Scott) Northern Pike 8 26.7 33.3
4/6-10/15 Largemouth Bass 1 n / a 16.9

Notes:  walleye-- 30% 14-16.9 inches, 37% 17-19.9 inches, 33% 20 inches or larger;  northern pike-- 3 of 8 fish 24-29.9 inches, 2 of 8 fish 30 inches or larger (both in 33-inch size group)


2014 Other Surveys / Fish Sampling

2013 Other Surveys / Fish Sampling

2012 Other Surveys / Fish Sampling

2011 Other Surveys / Fish Sampling

2010 (only Cedar Lake [Scott Co.] Special Assessment)

2009 Other Surveys / Fish Sampling

2008 Other Surveys / Fish Sampling

2007 Other Surveys / Fish Sampling

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