Jock Mock

Jock Mock is a small lake in the Cascade River (Lake Superior) watershed. The survey history for the lake is sparse, but shows a fish community that has grown increasingly complex over the years. No fish were collected in surveys or assessments done in 1953, 1960, and 1969. More recent assessments have found smallmouth bass, walleye, white sucker, and northern pike. No yellow perch have ever been found in this lake, and muskellunge (stocked in 1977 and present until 1979) appear to have died out. The walleye gill net catch in the 2011 assessment was within the normal range for a lake of this class. All walleye collected had been produced naturally. Five year classes, none particularly strong, contributed to the catch. With yellow perch apparently absent, walleye diet likely consisted of minnows and invertebrates. Despite this limited forage, walleye growth had been average or a little better, compared to similar lakes in the area. The northern pike gill net catch fell below the normal range for the lake class, but was consistent with catches seen in this lake in the past. Although no large northern pike were taken, most were larger than 20 inches, resulting in a mean weight that exceeded the normal range for the lake class. Three age classes contributed to the 2011 catch. Growth of young northern pike had been relatively fast. Fish reached an average length of 16.6 inches by the end of their second year, compared to an area average of 12.0 inches. Smallmouth bass were present in 2011, and all fish taken were over 12 inches in length. Smallmouth bass growth had also been fairly fast. No white sucker were taken in 2011.

NORTHERN PIKE ARE PRESENT IN GOOD NUMBERS, WITH FAIR AVERAGE SIZE. SEVERAL YEAR CLASSES ARE PRE- SENT AND NATURAL REPRODUCTION APPEARS TO BE GOOD. NORTHERN PIKE GROWTH APPEARS TO BE SLOW, PARTICU- LARLY IN YOUNGER FISH. SMALLMOUTH BASS ABUNDANCE IS DIFFICULT TO ASSESS; HOWEVER, SOME LARGER FISH ARE PRESENT. NO OTHER SPECIES WERE TAKEN, BUT THERE MAY STILL BE LOW NUMBERS OF MUSKELLUNGE AND WALLEYE PRESENT.

Based on Minnesota DNR survey data, anglers target Walleye, Smallmouth Bass, and Northern Pike in Jock Mock. See the full species list above for catch rates, size structure, and quality scores.

Minnesota DNR records list public access for Jock Mock. Check the DNR LakeFinder page for the launch type and directions before you go.

Jock Mock has a maximum depth of 20 feet, per Minnesota DNR data.

The most recent Minnesota DNR survey data for the main sport fish in Jock Mock is from 2011. Surveys this old should be treated with some caution — fish populations change over time.

No invasive species are on record for Jock Mock in Minnesota DNR data. Always clean, drain, and dry your equipment to help keep it that way.