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.
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 here.
|Lake (County) Date||Species||Number per hour||Average length (in) / % over 15 inches||Max length (in)|
|LMB||32||11.4 / 26%||18.7|
|LMB||31||11.4 / 18%||18.9|
|LMB||62||8.6 / 2%||16.1|
|LMB||100||8.8 / 2%||20.0|
|LMB||62||11.6 / 27%||20.5|
|LMB||84||10.5 / 14%||20.1|
|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.
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)|
|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)