Larvae Summary

Larvae Information Summary for Coryphaenoides filifer

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Main Ref:

Ambrose, D.A. 1996

Yolk-sac larvae

	max	min	mod	Ref.
Length at birth (mm)
Preanal L. % TL

Place of development	planktonic
Larval area	California Current region
Yolk-sac		Ref:
Yolk		Oil globules
Rows on tail
Other melanophores on tail

Post larvae

Striking feature	none
Striking shape lateral	normal (not striking)	dorsal
Striking feature	none
Shape of gut	triangular
Gas bladder early	visible	late	visible
Spinal armature early	no spines	late	no spines
Pigmentation early
Rows on tail	no rows
Other melanophores on tail	no other melanophores
Melanophores on head + trunk	melanophores on head + trunk
Pigmentation late
Rows on tail	no rows
Other melanophores on tail	no other melanophores
Melanophores on head + trunk	melanophores on head + trunk
Urostyle region early	unpigmented	late	unpigmented
Peritoneum	with row of melanophores
Pectorals	normal without melanophores
Pelvics	fin rays only without melanophores
Number of first dorsal fin rays (11-14); pelvic fin rays (9-11); number of gas glands (4); prominent basipterygia; oval pigment patch extending from anterior region of first dorsal fin posteriorly to about the 12th second dorsal fin ray and ventro-laterally to the lateral line. Pigmentation: Anal fin formation: on frontal region of head; on lower jaw and gular and suborbital regions; dorsolaterally on peritoneum; surrounding first dorsal fin and extending posteriorly to about 12th second dorsal fin ray; scattered along lateral line. Transformation: similar to earlier stage, except dorsal pigmentation extending posteriorly only to about 7th second dorsal ray. Sequence of fin development: pelvics and first dorsal and anal and second dorsal, pectorals.

	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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