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Larvae Information Summary for  Bregmaceros atlanticus
( not available )

Main Ref: Okiyama, M. 1993
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)     1.5 46075
Preanal L. % TL        
Place of development planktonic
Larval area Northwestern Pacific (Japan)
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail  
Other melanophores on tail  
Post larvae
Striking feature some dorsal fin rays very elongated
Striking shape lateral normal (not striking) dorsal  
Striking feature some dorsal fin rays very elongated
Shape of gut triangular
Gas bladder   early   late  
Spinal armature   early   late  
Pigmentation early
Rows on tail no rows
Other melanophores on tail tail partly covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Pigmentation late
Rows on tail no rows
Other melanophores on tail tail completely covered with melanophores
Melanophores on head + trunk melanophores on head + trunk
Urostyle region   early pigmented late pigmented
Peritoneum with row of melanophores
Pectorals normal melanophores at fin base
Pelvics with elongated fin rays  
Occipital ray develops at around 5.0-5.5 mm SL. Pigmentation: At < or = 3 mm SL: Melanophore at angle of jaw and tip of lower jaw. Scattered melanophores, on head and over midbrain and at base of pectoral fin. Scattered, large internal stellate melanophores on side of body. Diffuse melanophores, some dendritic, on surface of trunk and tail. At 5-10 mm SL: Many melanophores over surface of head and body, including dorsal, anal and caudal fins. Larva more or less "completely" pigmented.
Meristic characters
  max min mod Ref.
Total number of myomeres 55 50   46075
  L 1st feeding Ref. Months of presence of larvae    Ref. 
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod     Sep Oct Nov Dec
Water parameters     Metric characters
Entered by: Luna,Susan M. - 10.03.03
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