Scientific Name
Micropterus salmoides
Largemouth Bass
Image Credit
U.S. Fish and Wildlife Service
25-55 centimetres (10-22 inches)
0.7-1.8 kilograms (1.5-4 pounds)
Similar Species
  • southern Ontario through the lower Great Lakes
  • some populations in Northwestern Ontario
  • medium-sized, deep-bodied fish
  • back and sides are green to olive
  • belly is yellow to white
  • broken horizontal stripe along body
  • 9 to 11 dorsal fin spines
  • deep notch between dorsal fins
  • upper jaw extends beyond eye
  • warm, weedy water
  • clear, rocky lakes
  • shallow muddy ponds
  • slow-moving rivers
Angling Tips
  • often found in thick weeds and near sunken wood
  • overhanging trees and docks are good largemouth hideouts
  • best times to fish are early morning and late evening – they tend to take shelter during the day
  • when fish aren’t biting, change your lure and your tactic
  • strong-fighting fish, eager to strike most artificial lures
  • keen sense of smell – can be fooled by adding scent to artificial bait
  • bass season opens the 4th Saturday in June in most of Ontario
Common Bait
  • spinnerbaits, buzzbaits, crankbaits
  • topwater plugs
  • jigs
  • a variety of soft plastic baits
  • minnows and crayfish