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Largemouth Bass, Micropterus salmoides


Short description of Micropterus salmoides, Largemouth Bass

Usually up to 40cm. Mouth large; maxillary extending beyond the eye. Pelvic fins not joined by a membrane. Green to olive dorsally, milk-white to yellow ventrally, with black band running from the operculum to the base of the caudal fin. Caudal fin rounded with 17 rays.

Description of Micropterus salmoides, Largemouth Bass status in GB

Largemouth Bass is sparsely scattered records from southern and eastern England; believed to have been exterminated.

Habitat summary: Micropterus salmoides, Largemouth Bass

Clear, vegetated lakes, ponds, swamps, and backwaters and pools of streams and rivers. Usually found over mud or sand. Reported to avoid fast-flowing waters and may occur in estuaries. Prefers quiet, clear water with overgrown banks.

Overview table

Environment: Freshwater
Species status: Non-Native
Native range: Northern America, Mexico, Alberta, British Columbia, Labrador, Manitoba, New Brunswick, Nova Scotia, Ontario, Saskatchewan, Yukon
Functional type: Predator
Status in England: Non-Native
Location of first record: Oulton Broad (Norfolk)/Wareham (Dorset)
Date of first record: 1935

Distribution map

Map of the UK with areas shaded to show the UK distribution of Largemouth Bass

GB Distribution from NBN Atlas

Author's name:

Dr. David Hubble

Last updated:

September 22nd 2016

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