FishBase
Larvae Information Summary for  Atherinella eriarcha
( not available )

Main Ref: Watson, W. 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 7 6    
Preanal L. % TL        
Place of development planktonic
Larval area California Current region
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail  
Other melanophores on tail  
Post larvae
Striking feature none
Striking shape lateral normal (not striking) dorsal  
Striking feature none
Shape of gut spherical or gut loop
Gas bladder   early   late  
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail lateral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head
Pigmentation late
Rows on tail lateral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on head
Urostyle region   early pigmented late pigmented
Pectorals normal without melanophores
Pelvics normal (i.e. small or absent) without melanophores
No external pigment over hindbrain before transformation stage; usually on trunk or tail before about 14 mm except lateral stripe which ends at myomere 34-35 in larvae and is constricted in same area in juveniles; internal pigment in tail is sparse; second dorsal insertion above 3rd or 4th from last anal fin ray; myomeres usually 7-8 + 30-31 = 38-39 through postflexion stage, 13+25 in transformation and juvenile stages. Pigmentation: Flexion-transformation: 1 (large) posteriorly over midbrain; 2 anteriorly over midbrain, number increases; over forebrain, near nostrils, and on upper lip after 12 mm; ventrally on brain, spreading around brain by about 25 mm; under gill cover; anteriorly and dorsally on gut, surrounding it by about 25 mm; midlateral series on tail, spreading from myomeres 16-34 in flexion stage to 4-5 through 35 by about 25 mm; internally on hypurals and urostyle; few over last few vertebrae and under most caudal vertebrae by about 11 mm; on hypural margin in postflexion stage; on bases of some anterior dorsal and anal fin rays after about 12 mm. Juvenile: broad lateral stripe, constricted at about myomeres 34-36, then expanded into diamond shape; heavy on distal half of caudal fin. Sequence of fin development: caudal, 2nd dorsal and anal and pectorals, 1st dorsal and pelvics.
Meristic characters
  max min mod Ref.
Total number of vertebrae 41 37   36497
  L 1st feeding Ref. Months of presence of larvae
max     Jan Feb Mar Apr
min   May Jun Jul Aug
mod     Sep Oct Nov Dec
Water parameters     Metric characters
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