FishBase
Larvae Information Summary for  Anchoa delicatissima
( not available )

Main Ref: Watson, W. and E.M. Sandknop 1996
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm) 2.5 2    
Preanal L. % TL        
Place of development planktonic
Larval area California Current region
Yolk-sac elongated   unpigmented Ref:  
Yolk segmented Oil globules no oil globule
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on trunk
Pigmentation: few dorsolaterally along gut; few on ventral margin of tail.
Post larvae
Striking feature none
Striking shape lateral short and/or deep dorsal  
Striking feature none
Shape of gut elongated
Gas bladder   early pigmented late pigmented
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on trunk
Pigmentation late
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on trunk
Urostyle region   early unpigmented late pigmented
Peritoneum with row of melanophores
Pectorals normal without melanophores
Pelvics normal (i.e. small or absent) without melanophores
Dorsal fin insertion at postanal myomere 2-3, above anal fin rays 6-8 through postflexion stage; little or no pigment (Usually none) dorsally on hindgut; anal fin rays 23-27; compared with Engraulis mordax, deeper-bodied, greater overlap between dorsal fin insertion and anal fin origin, dorsal finand anal fin ray formation begins before caudal fin ray formation, and more lightly pigmented. Pigmentation: Preflexion-flexion: 2-4 on isthmus; few dorsolaterally along foregut; dorsally on gas bladder; few on ventral margin of hindgut, decreasing during flexion stage; few on ventral margin of tail; little ventrally on caudal finfold and along developing caudal fin rays. Postflexion: internally on mid- and hindbrain after 15 mm; on cleithrum after 11 mm; increasing on gas bladder, ventral margin of tail, and caudal fin; none on ventral margin of hindgut; internally over caudal vertebrae after 16.5 mm; internally on urostyle and lower hypurals.
Meristic characters
  max min mod Ref.
Total number of myomeres 42 38   35602
  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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