التصنيف / Names
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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Baryancistrus: Greek, barys = heavy + Greek, agkistron = hook (Ref. 45335); demantoides: Name from the German diemant, meaning diamond, and the Greek suffix, oides, meaning to resemble. The specific name refers to a demantoid, a type of garnet that ranges in color from yellowish green to brownish green, in reference to the color of the fish.
Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
; المياه العذبة القاع. Tropical
South America: upper Rio Orinoco drainage in Venezuela.
الحجم / وزن / العمر
النضج: Lm ? range ? - ? cm
Max length : 15.1 cm SL ذكر/ مختلط الجنس; (Ref. 56038)
وصف مختصر
مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي
الأشواك الظهرية (المجموع) : 2; الأشعة الظهرية الناعمة (المجموع) : 7. Distinguished from all other ancistrins by having the dorsal and adipose fins connected by an expanded posterior section of the dorsal-fin membrane, golden-yellow spots confined to the anterior portion of the body and greater than 30 teeth per jaw ramus (Ref. 56038).
Body shape (shape guide): elongated.
Occurs exclusively among granite rocks in flowing water (Ref. 56038).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Werneke, D.C., M.H. Sabaj, N.K. Lujan and J.W. Armbruster, 2005. Baryancistrus demantoides and Hemiancistrus subviridis, two new uniquely colored species of catfishes from Venezuela (Siluriformes: Loricariidae). Neotrop. Ichthyol. 3(4):533-542. (Ref. 56038)
IUCN Red List Status (Ref. 130435: Version 2025-1)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00719 - 0.03336), b=2.98 (2.81 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
المرونه (مرجع
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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