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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).
Eponymy: Déodat Gratet de Dolomieu (1750–1801) was a French geologist. [...] (Ref. 128868), visit book page.
More on author: Lacepède.
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
; المياه العذبة قاعية التغذية و المعيشة; سمكة نهرية (Ref. 126106); نطاق العمق 1 - 7 m (Ref. 120820). Subtropical; 9°C - 30°C (Ref. 1998); 50°N - 33°N, 95°W - 63°W (Ref. 86798)
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.
الطول عند النضج الأول / الحجم / وزن / العمر
النضج: Lm 27.0, range 22 - ? cm
Max length : 69.0 cm TL ذكر/ مختلط الجنس; (Ref. 86798); common length : 8.0 cm TL ذكر/ مختلط الجنس; (Ref. 3549); أعلا وزن تم نشرة: 5.4 kg (Ref. 4699); العمر: 26 سنين (Ref. 46974)
الأشواك الظهرية (المجموع) : 9 - 11; الأشعة الظهرية الناعمة (المجموع) : 13 - 15; شوكة شرجية: 10 - 11; فقرات: 31 - 32.
Body shape (shape guide): fusiform / normal.
Adults inhabit 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). They are sometimes cannibalistic (Ref. 30578). Preyed upon by fishes and turtles (Ref. 1998). They build nest, usually at three or four feet deep (Ref. 120821). Excellent food fish (Ref. 1998).
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).
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)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
خطر للأنسان
Potential pest
استخدامات بشرية
مصائد: تجاري; لعبة سمكه: نعم; حوض مائي: احواض مائية عامة
أدوات
تقارير خاصة
تنزيل XML
مصادر علي الأنترنت
تقديرات تستند إلى النماذج
مؤشر التنوع الشُعبي الوراثي (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00902 - 0.01333), b=3.04 (2.98 - 3.10), in cm total length, based on LWR estimates for this species (Ref.
93245).
مستوى غذائي (مرجع
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.
المرونه (مرجع
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (K=0.10-0.28; tm=3-6; tmax=14; Fec=5,000).
ضعف الصيد (Ref.
59153): Moderate to high vulnerability (49 of 100).
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