Micropterus punctulatus  (Rafinesque, 1819)

Spotted bass
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Micropterus punctulatus
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Centrarchidae (Sunfishes)
Etymology: Micropterus: Greek, mikros = small + Greek,pteron = wing, fin (Ref. 45335);  punctulatus: punctulatus meaning dotted, referring to the rows of spots on the lower sides (Ref. 10294).

Environment / Climate / Range Ecology

Freshwater; demersal.   Subtropical; 40°N - 29°N

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 63.5 cm TL male/unsexed; (Ref. 40637); common length : 30.0 cm TL male/unsexed; (Ref. 12193); max. published weight: 4.7 kg (Ref. 40637); max. reported age: 7 years (Ref. 12193)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North America: Mississippi River basin from southern Ohio and West Virginia to southeastern Kansas, and south to the Gulf of Mexico, USA; Gulf Slope drainages from Chattahoochee in Georgia to Guadalupe River in Texas, USA. Introduced in southern Africa and has become established in several isolated water bodies.

Biology     Glossary (e.g. epibenthic)

Inhabit clear, gravelly flowing pools and runs of creeks and small to medium rivers (Ref. 6465); also found in streams, lakes and reservoirs (Ref. 10294). Juveniles feed on small crustaceans and midge larvae while adults eat insects, larger crustaceans, frogs, worms, grubs and small fish (Ref. 6465, 10294).

Main reference Upload your references | References | Coordinator | Collaborators

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Gamefish: yes
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00889 - 0.01416), b=3.04 (2.97 - 3.11), based on LWR estimates for this species (Ref. 93245).
Trophic Level (Ref. 69278):  3.6   ±0.53 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=3-4).
Vulnerability (Ref. 59153):  High vulnerability (58 of 100) .
Price category (Ref. 80766):   Unknown.