Micropterus dolomieu, Smallmouth bass : fisheries, gamefish, aquarium

Micropterus dolomieu Lacepède, 1802

Smallmouth bass
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | 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 Ökologie

; süßwasser benthopelagisch; tiefenbereich 1 - 7 m (Ref. 120820), usually - m (Ref. ).   Subtropical; 9°C - 30°C (Ref. 1998); 50°N - 33°N, 95°W - 63°W (Ref. 86798)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | 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 / Size / Gewicht / Alter

Maturity: Lm 27.0, range 22 - ? cm
Max length : 69.0 cm TL Männchen/unbestimmt; (Ref. 86798); common length : 8.0 cm TL Männchen/unbestimmt; (Ref. 3549); max. veröff. Gewicht: 5.4 kg (Ref. 4699); max. veröff. Alter: 26 Jahre (Ref. 46974)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 9 - 11; Rückenflossenweichstrahlen (insgesamt): 13-15; Afterflossenstacheln 10-11; Wirbelzahl: 31 - 32

Biologie     Fachlexikon (Englisch) (z.B. 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 Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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).

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

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)

IUCN Rote Liste Status (Ref. 124695)

  nicht bedroht (LC) ; Date assessed: 01 March 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Potential pest





Nutzung durch Menschen

Fischereien: kommerziell; Sportfisch: ja; Aquarium: Öffentliche Aquarien
FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00897 - 0.01340), b=3.05 (2.99 - 3.11), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (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.
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (K=0.10-0.28; tm=3-6; tmax=14; Fec=5,000).
Verwundbarkeit (Ref. 59153):  Moderate to high vulnerability (49 of 100) .
Preiskategorie (Ref. 80766):   Unknown.