|Nearest Town: JACKSON
Primary County: Jackson
Survey Date: 06/25/2001
Inventory Number: 32-0033-00
|County||Concrete||COUNTY ACCESS ON SOUTHWEST SIDE OF LAKE.|
|County||Carry-in||COUNTY PARK ON EAST SIDE OF LAKE.|
|Did you know? Lake rehabilitation projects reclaim waters suffering from habitat degradation and overpopulation of some fish species.|
|Species||Number of fish per net||
Average Fish Weight (lbs)
Normal Range (lbs)
|Bigmouth Buffalo||Trap net||0.3||0.2 - 1.0||7.05||2.6 - 5.8|
|Black Bullhead||Trap net||45.2||11.5 - 132.6||0.69||0.2 - 0.4|
|Black Crappie||Trap net||20.4||1.2 - 20.5||0.42||0.2 - 0.5|
|Bluegill||Trap net||0.4||1.2 - 20.0||0.34||0.1 - 0.4|
|Common Carp||Trap net||3.8||1.0 - 5.5||4.95||1.4 - 4.6|
|Channel Catfish||Trap net||0.2||N/A - N/A||1.24||N/A - N/A|
|Freshwater Drum||Trap net||0.5||0.2 - 3.3||0.59||0.3 - 1.0|
|Hybrid Sunfish||Trap net||trace||N/A - N/A||0.38||N/A - N/A|
|Northern Pike||Trap net||0.4||N/A - N/A||4.19||N/A - N/A|
|Walleye||Trap net||0.6||0.5 - 3.0||1.96||0.8 - 2.3|
|White Sucker||Trap net||trace||0.3 - 2.6||1.54||1.0 - 2.0|
|Yellow Bullhead||Trap net||trace||0.5 - 2.5||0.44||0.3 - 0.7|
|Yellow Perch||Trap net||trace||0.3 - 3.8||0.08||0.1 - 0.3|
|Species||Number of fish caught in each category (inches)|
|For the record, the largest Bluegill taken in Minnesota weighed 2 lbs., 13 oz. and was caught: |
Fish Stocked by Species for the Last Ten Years
|Privately Stocked Fish|
|* indicates privately stocked fish. Private stocking includes fish purchased by the DNR for stocking and fish purchased and stocked by private citizens and sporting groups.|
|Stocking Fish Sizes|
|Fry - Newly hatched fish that are ready to be stocked usually called "swim-ups". Walleye fry are 1/3 of an inch or around 8 mm.|
|Fingerling - Fingerlings are one to six months old and can range from a size of one to twelve inches depending on the species. Walleye fingerlings range from three to eight inches each fall.|
|Yearling - Yearling fish are at least one year old. A one-year-old fish can range from three to twenty inches depending on the species. Walleye yearlings average from six to twelve inches.|
|Adult - Adult fish are fish that have reached maturity. Depending on the species, maturity can be reached at two years of age. Walleye reach maturity between the ages of four and six years.|
Pearl is a 155 acre lake with a maximum depth of six feet located near Loon lake in Jackson County. The lake is presently managed for northern pike as the primary species while walleye, yellow perch, and black crappie are managed secondarily. The lake may have suffered a partial winterkill during the winter of 2000 and 2001. In years of normal to high flow, fish can move between Pearl and Loon. Oxygen levels dropped very low in December of 2000. The fish population was assessed during the week of 06/25/2001 with 12 trapnets. Gillnets were not used due to the shallowness of the lake.
Northern pike abundance was low compared to lakes similar to Pearl. Some nice pike were sampled, however, with lengths that ranged from 20.6 to 34.7 inches and averaged 25.9 inches.
Walleye abundance was low compared to lakes similar to Pearl. This may be due to the low oxygen readings in December of 2000. Walleye sampled during the assessment were nice with lengths ranging from 15.8 to 24.3 inches and averaging 17.8 inches. The walleye population sampled during the assessment likely was the result of natural reproduction in Loon during the Spring of 1998.
Yellow perch abundance was low compared to lakes similar to Pearl. Yellow perch abundance was also low in Loon. Yellow perch numbers typically fluctuate in many of the lakes in Southern Minnesota. If the numbers of yellow perch do not recover, additional stocking may be necessary.
Black crappie abundance was high compared to lakes similar to Pearl. Lengths of black crappie ranged from 4.9 to 11.5 inches and averaged 9.1 inches. There were several black crappie sampled in the 9.5 to 10.5 inch range.
Bluegill abundance was low compared to lakes similar to Pearl. A fishable population does exist and lengths ranged from 5.1 to 8.0 inches and averaged 7.1 inches.
Black bullhead abundance was average compared to lakes similar to Pearl. Lengths of black bullhead ranged from 8.9 to 13.0 inches and averaged 10.9 inches.
Other fish species sampled during the assessment included bigmouth buffalo, common carp, channel catfish, freshwater drum, hybrid sunfish, white sucker, and yellow bullhead.
To promote and maintain healthy fish populations, pollution and other inputs need to be controlled. Fish habitats are directly affected by water quality. Nutrient, sediment and other waste inputs can drastically alter the biological, chemical, and physical components of a lake. It is paramount to maintain if not improve the current water quality of Pearl through watershed management to preserve this fishery for future generations to enjoy.
|For more information on this lake, contact:||Lake maps can be obtained from:|
For general DNR Information, contact:
DNR Information Center
500 Lafayette Road
St. Paul, MN 55155-4040
TDD: (651) 296-6157 or (888) MINNDNR
Turn in Poachers (TIP):
Toll-free: (800) 652-9093