EGG INFORMATION
Egg Diameter (min-max in mm): 0.8 - 1.05
Number of Oil Globules (min-max): Oil Globule Diameter (min-max in mm): Yolk: Homogeneous
Chorion: Thin, smooth, transparent
Egg/Embryo Pigment: head, nape, gut, dorsal, ventral, pvm, anus,
Pigment Diagnostics: Distinguished from other 1.0 mm pleuronectid eggs by: two rows of pigment between eyes and moderate amount of ventral midline pigment in late stage eggs
Diagnostic Characters: Very difficult to distinguish from the 3 other 1.0-mm pleuronectid eggs in the area:
Isopsetta isolepis,
Platichthys stellatus,
Psettichthys melanostictus
LARVAE INFORMATION
Hatch Size (min-max in mm SL): 2.3 - 2.8
Preanal Length (%SL): 43 - 45
Flexion Length (in mm SL): 8.8 - 10.5
Length at Transformation (in mm SL): Eye migration prior to 17.5
Fin Development Sequence: Caudal, dorsal and anal, pelvics, pectorals
Larval Pigment Regions: In each developmental larval stage, pigment is present in the regions listed below
(click for
pigment regions)
Yolk-sac:
Preflexion: mouth, nape, cheek, isthmus, dorsal gut, ventral gut, anal finfold, dorsal, ventral, caudal,
Flexion: mouth, crown, cheek, isthmus, dorsal gut, ventral gut, anal finfold, caudal finfold, dorsal, ventral, mediolateral, caudal,
Postflexion: mouth, crown, cheek, isthmus, dorsal gut, ventral gut, anal finfold, caudal finfold, dorsal, ventral, mediolateral, caudal,
Juvenile: mouth, crown, nape, cheek, isthmus, dorsal gut, lateral gut, ventral gut, dorsal finfold, anal finfold, caudal finfold, pectoral fin, dorsal, ventral, mediolateral, caudal,
Pigment Diagnostics: Distinguished from other pleuronectids without pigment bands by: dorsal and ventral midline pigment, hypaxial pigment, finfold pigment mostly restricted to anal finfold in preflexion, and increasing on caudal through development
Diagnostic Characters: Distinguished from other pleuronectids without pigment bands by: dorsal and ventral midline pigment, hypaxial pigment, finfold pigment mostly restricted to anal finfold
