DIAMOND LAKE STATUS REPORT SUMMARY
CHANNEL CATFISH: This 149.0 acre lake is managed in cooperation with the Mundelein Park & Recreation District and began receiving annual stockings of non-vulnerable fingerling in 1985. A stocking rate of 23 fish per acre (3400 fish) resulted in the establishment of a strong catfish fishery with good growth and condition, however limited targeted effort toward the fishery resulted in over abundance and poor body condition. In order to raise body condition yet maintain predatory pressure on a burgeoning yellow bass population the stocking rate was reduced by one-half to 11 fish per acre (1700 fish). Fish collected during a 2003 survey appeared to be in better condition and slightly less abundant. The stocking reduction appears to have increased condition and reduced abundance. The fishery will be re-assessed in 2006 to see how management decisions have affected the lake.
NORTHERN PIKE: The lake receives annual stockings of
northern pike to balance this urban glacial lake’s fishery. The
average size fish collected in 2003 was 21 inches (n = 4) indicating successful
survival following stocking and may suggest significant harvest pressure
since larger fish were not collected. Open water access is limited to
a Park District boat launch but ice fishing opportunities offer more access
possibilities and more opportunities to tap into this fishery. Diamond
Lake has an abundance of shoreline vegetation in shallow water and deep
thermal relief to harbor larger fish. Fish in excess of 36" have
been observed while sampling but evaded capture so only qualify as “legend”
for now. There is potential for larger fish to be swimming in these waters.
