Larvae Summary

Larvae Information Summary for Acanthopagrus butcheri

( not available )

Main Ref:

Neira, F.J., A.G. Miskiewicz and T. Trnski 1998

Yolk-sac larvae

	max	min	mod	Ref.
Length at birth (mm)			1.7	33616
Preanal L. % TL	63	49

Place of development	planktonic
Larval area	Gippsland Lakes (Vic)
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	normal (not striking)
Striking feature	none
Shape of gut	spherical or gut loop
Gas bladder early	visible	late
Spinal armature early	several different spines	late	several different spines
Pigmentation early
Rows on tail	no rows
Other melanophores on tail	one dorso-ventral cluster or band
Melanophores on head + trunk	melanophores on trunk
Pigmentation late
Rows on tail	no rows
Other melanophores on tail	one dorso-ventral cluster or band
Melanophores on head + trunk	melanophores on head + trunk
Urostyle region early	unpigmented	late	unpigmented
Peritoneum	with row of melanophores
Pectorals	normal with rows of melanophores
Pelvics	normal (i.e. small or absent) without melanophores
Diagnostic characters: small anterior and posterior preopercular spines; smooth supraocular and supracleithral ridges from early postflexion stage; large melanophores dorsally on head. Scales start to develop from about 13 mm BL (Ref. 55737). Sequence of fin formation: caudal (up to <7.1 mm); dorsal (<7.1-7.4 mm); pectoral (<7.1-7.4 mm); pelvic (<7.1-9.0 mm); anal (<7.1-0.9 mm). Larvae settle on the bottom at about 11.7 mm BL.

Meristic characters

	max	min	mod	Ref.
Total number of myomeres	25	24		33616
Preanal number of myomeres	14	10		33616

	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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