EGG INFORMATION
Egg Diameter (min-max in mm): 1.34 - 2.05
Number of Oil Globules (min-max): 1
Oil Globule Diameter (min-max in mm): 0.16
Yolk: Irregularly segmented
Chorion: Smooth, thin
Egg/Embryo Pigment: head, nape, dorsal,
Pigment Diagnostics: Diagnostic Characters: Wide perivitelline space
LARVAE INFORMATION
Hatch Size (min-max in mm SL): 3.5 - 3.75
Preanal Length (%SL): >75
Flexion Length (in mm SL): 9 - 14
Length at Transformation (in mm SL): 35
Fin Development Sequence: Caudal, dorsal, 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: crown, dorsal,
Preflexion: isthmus, dorsal gut, ventral gut, caudal finfold, ventral, caudal,
Flexion: crown, isthmus, dorsal gut, ventral gut, caudal finfold, ventral, caudal,
Postflexion: crown, nape, cheek, isthmus, dorsal gut, ventral gut, caudal finfold, ventral, mediolateral, caudal,
Juvenile: mouth, crown, nape, cheek, isthmus, dorsal gut, ventral gut, caudal finfold, dorsal, ventral, mediolateral, caudal,
Pigment Diagnostics: Dash-like melanophores along anterior gut, often a prominent melanophore at distal margin between middle hypurals. Distignuished from Clupea pallasii by: lack of posteroventral pigment on gut, lack of dorsal spots at notochord tip (usually)
Diagnostic Characters: Dash-like melanophores along anterior surface of gut. Distinguished from Clupea pallasii by lack of posteroventral pigment on gut. Distinguished from Engraulis mordax by: dorsal- and anal-fin placement (6-8 myomeres between fins)
