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Larvae Information Summary for  Gobiosoma ginsburgi
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Main Ref: Scotton, L.N., R.E. Smith, N.S. Smith, K.S. Price and D.P. de Sylva 1973
Yolk-sac larvae
  max min mod Ref.
Length at birth (mm)     2 39467
Preanal L. % TL        
Place of development planktonic
Larval area Delaware Bay
Yolk-sac       Ref:  
Yolk   Oil globules  
Rows on tail ventral row
Other melanophores on tail no other melanophores
Melanophores on head + trunk melanophores on trunk
Presence of pigment spots over vent and at base of ventral finfold; mouth is inferior. At 3.0 mm, mouth nearly terminal; pigment spots conspicuous along ventral finfold; vent is closer to tail than to snout; air bladder evident.
Post larvae
Striking feature none
Striking shape lateral normal (not striking) dorsal  
Striking feature none
Shape of gut elongated
Gas bladder   early visible late visible
Spinal armature   early no spines late no spines
Pigmentation early
Rows on tail ventral row
Other melanophores on tail more than two dorso-ventral clusters or bands
Melanophores on head + trunk melanophores on trunk
Rows on tail ventral row
Other melanophores on tail more than two dorso-ventral clusters or bands
Melanophores on head + trunk melanophores on trunk
Pectorals normal  
Pelvics joint at base or sucker disk  
At about 3.3 mm, the mouth becomes terminal and nearly vertical. At about 4.0 mm, the principal rays of the caudal fin are present and are partially differentiated. At about 7.5 mm, the snout is pointed, soft rays of dorsal and anal fins are differentiated; air bladder still visible. At 10.0 mm, the fish has assumed almost all adult characteristics; body robust, depth about 5.3 times the standard length; ventral fins developed as a sucking disk. Pigmentation consists of dark markings along anal fin and on ventral outline; chromatophores scattered vaguely as bars on sides and back. At 15.0 mm, body still robust but more slender than G. bosci; snout blunt; mouth small, oblique, slightly inferior; fins fully developed and body fully pigmented.
  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. - 07.12.01
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