Lutjanidae: K III B1

Paracaesio sordida Abe & Shinohara, 1962, and Pristipomoides sieboldii Bleeker, 1857.

Dusky fusilier

Egg diameter in µm	Number of oil globules	Diameter of oil globule in µm	Yolk texture	Perivitelline space	Position of oil globule at hatch	Gut length   at eye- pigment stage	Myomeres
860-910	1	100-170	clear	narrow	bow	44% of NL	25-26

Egg:. Fine black dots appear on the embryo, in a single line dorsally. On the oil globule, they are few (A). The oil globule is usually oblong, and always untinted. This egg may be slightly oval. In eggs about to hatch, black pigment can be seen on the outer edge of the finfolds. Incubation is 30-35 hours.

Larva: The large stellate black pigment spots in the finfolds, as well as conspicuous spots on the nose, oil globule and anus (C, D & D1), identify this larva. At 2 days (C), the oil globule is tinted orange, and imparts a light tint to the shrinking yolksac. At 5 days, the larva develops a dark line of pigment over the gut, and the finfolds are clear (E). B: NH, C: 2 days, D: 3 days, E: 5 days, (24°C).

Attempts to rear this egg were unsuccessful, despite some large batches of eggs. Twentyone larval DNA barcode sequences are currently available, 11 of which match 7 adult P. sordida collected locally. One matches Paracaesio xanthura and the other 9 match 3 adult Pristipomoides sieboldii, collected off Southport in May 2009 (BOLD reference).

This is a summer spawner off Park Rynie (blue graph). It was not seen in the DHM samples. At Park Rynie, the egg has shown a steady presence, after being virtually absent in the first 3 years (white graph). In the Park Rynie linked samples, the eggs were dominant offshore (92%), indicating they are spawned seaward of the geelbek (LIIA6) spawning grounds. See Section 7.3 and Table 1 of the Introductory Notes, for more information on the linked samples.

linked samples	Offshore	Inshore
Eggs	4091	360
Hits	39	20