FishBase
Larvae Information Summary for  Barilius canarensis
( not available )

Main Ref: Sado, T. and S. Kimura 2005
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 5.1 4.8    
Preanal L. % TL        
Place of development other
Larval area based on rearing experiment in a laboratory
Yolk-sac other   unpigmented Ref: 56897
Yolk unsegmented Oil globules no oil globule
Rows on tail no rows
Other melanophores on tail no other melanophores
Melanophores on head + trunk no melanophores on head or trunk
Yolk-sac larvae with transparent head and body, presence of melanophores in eyes. Yolk-sac is large (49-53% of BL), pear-shaped, and is located along venter of the head and body from snout to tip to just before the anus. Yolk completely absorbed during flexion. Finfold number is relatively low, depth is almost the same dorsally and ventrally. Finfold notches at tail present ventrally just after hatching, appearing dorsally in preflexion larvae. Mouth, gill opening, and nostrils forming in preflexion larvae. Gas bladder visible in preflexion larvae. Myomeres V-shaped in newly hatched larvae, becoming W-shaped in postflexion stage.
Post larvae
Striking feature none
Striking shape lateral normal (not striking) dorsal normal (not striking)
Striking feature none
Shape of gut elongated
Gas bladder   early visible late pigmented
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail dorsal row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail dorsal + lateral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early pigmented late pigmented
Peritoneum covered with melanophores
Pectorals normal  
Pelvics normal (i.e. small or absent)  
Preflexion larva: 5.8-7.1 mm; Flexion larva: 7.2 mm; Postflexion larva: >=7.7 mm. Fin development: pectoral, caudal, dorsal-anal, pelvic.
Meristic characters
  max min mod Ref.
Total number of myomeres 39 36   56897
  L 1st feeding Ref. Months of presence of larvae
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod     Sep Oct Nov Dec
Similar species 1 14474Cyprinusbarbatus
Remarks
Presence of a dark lateral streak on the head.
Similar species 2 Zaccoplatypus
Remarks
Presence of a darl lateral streak on the head. Also Z. temminckii.
Water parameters     Metric characters
Back to Search
Comments & Corrections

php script by kbanasihan, 09/07/10 ,  last modified by sortiz, 09/08/17