Unknown: L III B8

Unknown

 

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

865-925

1

220-250

clear

 narrow

stern

37% of NL

24-26

 

Egg: There are pretty, stellate, yellow pigment spots on the oil globule. Yellow dots on the embryo, have a pattern which leave a pale line down the centre of the embryo (A). Black pigment has the same pattern on the embryo, but is stellate and ventral on the oil globule. The oil globule is clear. Incubation is 35-40 hours.

Larva: The rather intricate pattern of yellow on the 2-day larva, rapidly disappears, except in the trunk of the 4-day larva (C & D), while the gut becomes capped with black pigment.  B: 2 day, C: 4 days, D: 6 days (22°C).

This egg and larva appears identical to Dichistius multifasciatus (FIIIA2A), except for the segmented yolk of the latter, and may be an example where segmentation of the yolk is unreliable as an identifying character, or sometimes feint enough to be overlooked. No larval DNA barcoding sequences are currently available for this egg.

  

This egg was rarely seen off Park Rynie. Winter was the main spawning season (blue graph).

linked samples Offshore Inshore
Eggs 7 10
Hits 5 4

The Park Rynie linked samples showed slightly more of these eggs inshore, but numbers are too low to be meaningful. See Section 7.3 and Table 1 of the Introductory Notes, for more information on the linked samples