Jack

Lake County

Near Isabella

DOW: 38044100

Yellow PerchExcellent · 88Northern PikeAverage · 47

A 43-acre lake near Isabella in Lake County — best known for panfish and pike. Last surveyed 1997.

Fish Species (3)

Yellow Perch

Excellent · 88

Above-normal numbers · large fish

Gill-net survey · surveyed Jul 1997

Last surveyed 1997 — treat with caution

Avg Size

7.4"

Avg Weight

0.23 lbs

Catch rate: 46.5 per gill net · typical 2–15 for a lake like this

Size of catchable yellow perch31% keeper-size (9"+)

5–8" · 69%Largest sampled 11"

Survey History

Date	Catch Rate	Avg Length	Avg Weight	Gear
Jul 21, 1997	46.50	7.4"	0.23 lbs	Standard gill nets
Jun 19, 1984	20.00	-	0.50 lbs	Standard gill nets
Jun 19, 1984	1.80	-	0.48 lbs	Standard trap nets

Northern Pike

Average · 47

Typical numbers · average-size fish

Gill-net survey · surveyed Jul 1997

Last surveyed 1997 — treat with caution

Avg Size

15.3"

Avg Weight

0.96 lbs

Catch rate: 6.0 per gill net · typical 4–15 for a lake like this

Size of catchable northern pike14% keeper-size (24"+)

14–23" · 86%Largest sampled 24"

Survey History

Date	Catch Rate	Avg Length	Avg Weight	Gear
Jul 21, 1997	6.00	15.3"	0.96 lbs	Standard gill nets
Jun 19, 1984	1.20	-	0.33 lbs	Standard trap nets
Jun 19, 1984	4.00	-	0.55 lbs	Standard gill nets

Other species in this lake (1)

Rough fish, bullheads, and baitfish recorded in DNR surveys — present in the lake, but not typical angling targets.

White Sucker

Good · 65

Typical numbers · average-size fish

Gill-net survey · surveyed Jul 1997

Last surveyed 1997 — treat with caution

Avg Size

14.0"

Avg Weight

1.38 lbs

Catch rate: 18.5 per gill net · typical 3–23 for a lake like this

Survey History

Date	Catch Rate	Avg Length	Avg Weight	Gear
Jul 21, 1997	18.50	14.0"	1.38 lbs	Standard gill nets
Jun 19, 1984	22.00	-	1.95 lbs	Standard gill nets
Jun 19, 1984	0.40	-	1.50 lbs	Standard trap nets

Biologist Notes

July 21, 1997Jack Lake is a small, very shallow lake with a maximum depth of 5 feet, which is accessible by small boat or canoe. The fish population in Jack Lake i…

Jack Lake is a small, very shallow lake with a maximum depth of 5 feet, which is accessible by small boat or canoe. The fish population in Jack Lake is comprised of northern pike, yellow perch and white sucker. Test nets in 1997 found northern pike abundance about average compared to other lakes in this lake class. Northern pike up to 3.7 pounds were sampled, however 66% of the fish sampled were less than 1.0 pound. Yellow perch were sampled in above average numbers in the 1997 survey and averaged 7.9 inches in length. Yellow perch up to 11.4 inches were observed, with approximately 33% of the fish greater than 9.0 inches in length. There are indications that a certain year class of yellow perch is quite abundant and as a result by the summer of 1999 the average size of yellow perch may be larger. Currently there is very little angling directed at yellow perch.

June 19, 1984Northern Pike density was equal to the local gillnet catch index, but were smaller than average. White Sucker catch in numbers was about 50% higher th…

Northern Pike density was equal to the local gillnet catch index, but were smaller than average. White Sucker catch in numbers was about 50% higher than the local average. The average size of Yellow Perch were sampled in gillnets at a level approximately equal to the local average. The average size of Yellow Perch sampled was 0.5 pounds per fish. These were very healthy looking, catchable size fish.

Frequently Asked Questions

What fish can you catch in Jack?

Based on Minnesota DNR survey data, anglers target Yellow Perch and Northern Pike in Jack. See the full species list above for catch rates, size structure, and quality scores.

Is there public access at Jack?

We don't have a confirmed public access point on record for Jack. Check the DNR LakeFinder page for current access details before you go.

How deep is Jack?

Jack has a maximum depth of 5 feet, per Minnesota DNR data.

When were the main sport fish in Jack last surveyed?

The most recent Minnesota DNR survey data for the main sport fish in Jack is from 1997. Surveys this old should be treated with some caution — fish populations change over time.