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Larvae Information Summary for  Trichodon trichodon
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Main Ref: Matarese, A.C., A.W. Kendall, D.M. Blood and M.V. Vinter 1989
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)        
Preanal L. % TL        
Place of development planktonic
Larval area Northern California, 38-42° N, to Bering Sea, 54-66° N
Yolk-sac       Ref:  
Yolk   Oil globules  
Post larvae
Striking feature  
Striking shape lateral   dorsal  
Striking feature  
Shape of gut  
Gas bladder   early   late  
Spinal armature   early   late  
Diagnostic characters: early caudal development; hypural margin pigment: first forms line, then an anteriorly open bracket; similar smaller bracket develops on the caudal peduncle; slightly separate dorsal fins; anal fin longer than second dorsal fin. Pigment: on about every other myomere along ventral midline; distinct spots on hypural margin, increase in number with development to become a line; large melanophores cover entire surface of gut; several large melanophores on crown; anterior dorsal midline starts on nape, increases posteriorly. Sequence of fin development: caudal, dorsal and anal, pectorals and pelvics.
  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
Entered by: Luna,Susan M. - 02.03.00
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