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Perciformes/Percoidei (Perchs) >
Percidae (Perches) > Etheostomatinae
Etymology: Etheostoma: Greek, etheo = to strain + Greek, stoma = mouth; Rafinesque said "various mouths", but Jordan and Evermann suggest the name might have been intended as "Heterostoma (Ref. 45335); xanthovum: Name 'xanthovum' from the ancient Greek word 'xanthos' and Latin word 'ovum', meaning 'yellow' and 'egg', in reference to the yellow egg-mimic structures on the distal end of the second dorsal fin rays in spawning males.
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
; المياه العذبة قاعية التغذية و المعيشة. Subtropical
North America: USA.
الحجم / وزن / العمر
النضج: Lm ?  range ? - ? cm
Max length : 6.5 cm SL ذكر/ مختلط الجنس; (Ref. 137685)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشواك الظهرية (المجموع) : 7 - 10; الأشعة الظهرية الناعمة (المجموع) : 11 - 13; أشعه شرجية لينه: 7 - 8. This species is distinguished from its congeners by the following set of characters: absence of modified scales along the midline and translucent skin; presence of a row of three black spots at the base of the caudal fin and dorsal fin rays that extend beyond the fin margin in breeding males; lateral line is incomplete with 41 to 55 lateral line scales, of which 27 to 47 are pored; transverse scale row 12 to 18; scale rows above lateral line modally, scale rows below lateral line modally 8; scale rows around caudal peduncle 19 to 25; dorsal fin spines modally 9; dorsal fin rays modally 12; pectoral fin rays modally 12; anal fin spines 2; anal fin rays 7 to 8; second dorsal fin rays branch into two to four rays that are equal in length, terminating in yellow keratin knobs referred to as egg-mimics in nuptial males; scaled cheek, opercle, breast, nape, and belly are all scaled (Ref. 137685).
Body shape (shape guide): elongated; Cross section: oval.
This species inhabits headwater streams to medium-sized rivers with slow-flowing water and subtstrate mainly composed of sand and gravel. Occurences were also recorded in sloughs and wetlands with soft subtrate of silt and mud over detritus, woody debris, and emergent aquatic vegetation (Ref. 137685).
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
Wood, J.E., R.C. Harrington, Z.D. Alley, M.R. Thomas, J.W. Simmons and T.J. Near, 2023. A new species of Spottail darter endemic to the Clarks River in Kentucky and Tennessee (Percidae: Etheostomatinae: Etheostoma). Bulletin of the Peabody Museum of Natural History 64(1):11-37. (Ref. 137685)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
استخدامات بشرية
مصائد: غير ذات اهمية
أدوات
تقارير خاصة
تنزيل XML
مصادر علي الأنترنت
تقديرات تستند إلى النماذج
مؤشر التنوع الشُعبي الوراثي (مرجع 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00676 (0.00306 - 0.01496), b=3.12 (2.94 - 3.30), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
مستوى غذائي (مرجع 69278) |
3.3 ±0.5 se; based on size and trophs of closest relatives |
المرونه (مرجع 120179) |
عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.). |
ضعف الصيد (Ref. 59153) |
Low vulnerability (18 of 100). 🛈 |