Micropterus dolomieu, Smallmouth bass : fisheries, gamefish, aquarium

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Micropterus dolomieu Lacepède, 1802

Smallmouth bass
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Classificação / Names Nomes comuns | Sinónimos | Catalog of Fishes(Género, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Centrarchiformes (Basses) > Centrarchidae (Sunfishes)
Etymology: Micropterus: Greek, mikros = small + Greek,pteron = wing, fin (Ref. 45335);  dolomieu: Named after M. Dolomieu, French minerologist and friend of Lacepède (Ref. 1998).
More on author: Lacepède.

Environment: milieu / climate zone / depth range / distribution range Ecologia

; Água doce bentopelágico; intervalo de profundidade 1 - 7 m (Ref. 120820). Subtropical; 9°C - 30°C (Ref. 1998); 50°N - 33°N, 95°W - 63°W (Ref. 86798)

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

North America: St. Lawrence-Great Lakes system, Hudson Bay (Red River) and Mississippi River basins from southern Quebec in Canada to North Dakota and south to northern Alabama and eastern Oklahoma in the USA. Introduced into many countries for sport fishing. Several countries report adverse ecological impact after introduction.

Length at first maturity / Tamanho / Peso / Idade

Maturity: Lm 27.0, range 22 - ? cm
Max length : 69.0 cm TL macho/indeterminado; (Ref. 86798); common length : 8.0 cm TL macho/indeterminado; (Ref. 3549); peso máx. Publicado: 5.4 kg (Ref. 4699); Idade máx. registada: 26 anos (Ref. 46974)

Descrição breve Morfologia | Morfometria

Espinhos dorsais (total): 9 - 11; Raios dorsais moles (total): 13-15; Espinhos anais 10-11; Vértebras: 31 - 32

Biologia     Glossário (ex. epibenthic)

Inhabits shallow rocky areas of lakes and clear and gravel-bottom runs and flowing pools of rivers (Ref. 86798). Young feed on plankton and immature aquatic insects while adults take in crayfish, fishes, and aquatic and terrestrial insects (Refs. 1998, 10294, 44091). Is sometimes cannibalistic (Ref. 30578). Preyed upon by fishes and turtles (Ref. 1998). Builds nest, usually at three or four feet deep (Ref. 120821). Excellent food fish (Ref. 1998).

Life cycle and mating behavior Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

The male builds the nest in shallow waters of lakes and rivers, on sand, gravel, or rocky bottoms. Nest building usually occurs within 150 yards of where his nest was built in previous years. The pair swims about the nest, rubbing and nipping each other and eventually come to rest on the bottom. Actual spawning occurs and lasts for 5 seconds. The pair then encircles the nest for about 25-45 seconds, before settling to spawn again. This goes on for 2 hours. After spawning, the female leaves the nest and may spawn with another male in another nest. Males guard the eggs and young. (Ref. 1998).

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

  Preocupação menor (LC) ; Date assessed: 01 March 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

  Potential pest





Utilização humana

Pescarias: espécies comerciais; peixe desportivo: sim; Aquário: Aquários públicos
FAO - Publication: search | FishSource |

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Nomes comuns
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Fecundidade
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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00897 - 0.01340), b=3.05 (2.99 - 3.11), in cm total length, based on LWR estimates for this species (Ref. 93245).
Nível Trófico (Ref. 69278):  3.6   ±0.2 se; based on diet studies.
Generation time: 6.8 (5.2 - 7.3) years. Estimated as median ln(3)/K based on 26 growth studies.
Resiliência (Ref. 120179):  Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (K=0.10-0.28; tm=3-6; tmax=14; Fec=5,000).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (49 of 100).
Categoria de preço (Ref. 80766):   Unknown.