Micropterus dolomieu, Smallmouth bass : fisheries, gamefish, aquarium

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Micropterus dolomieu Lacepède, 1802

Smallmouth bass
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分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | 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 生態学

; 新鮮な水 底生の漂泳性; 深さの範囲 1 - 7 m (Ref. 120820). Subtropical; 9°C - 30°C (Ref. 1998); 50°N - 33°N, 95°W - 63°W (Ref. 86798)

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | 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 / サイズ / 重さ / 年齢

Maturity: Lm 27.0, range 22 - ? cm
Max length : 69.0 cm TL オス/雌雄の選別がない; (Ref. 86798); common length : 8.0 cm TL オス/雌雄の選別がない; (Ref. 3549); 最大公表体重: 5.4 kg (Ref. 4699); 最大記録サイズ: 26 年 (Ref. 46974)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 9 - 11; 背鰭 (合計): 13-15; 肛門の骨 10-11; 脊つい: 31 - 32

生物学     用語集 (例 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 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

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).

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

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のレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 01 March 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Potential pest





Human uses

水産業: 商業; ゲームフィッシュ: はい; 水族館・水槽: 公共の水族館
FAO - Publication: search | FishSource |

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共通名の
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生態毒性
繁殖
成熟
放精
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水産養殖の紹介
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シガテラ(食中毒の名前)
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インターネットの情報源

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).
栄養段階 (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.
回復力 (Ref. 120179):  手段, 1.4年~4.4年の倍増期間の最小個体群 (K=0.10-0.28; tm=3-6; tmax=14; Fec=5,000).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (49 of 100).
価格帯 (Ref. 80766):   Unknown.