Days after hatching
Developmental stage
Height of minute tubercles (um)
Height of minute tubercles (um)
Characteristics of larave
eyes and head Wing-like projection
1
Formation
2.57±0.51
4.85±1.68
no movement of larvae yolksac begin to develop in dorsal and ventral regions
2 Growth 3.26±0.99 5.91±1.38 larvae start to movement
3 3.57±0.82 6.27±1.71 head slightly develop
4 3.83±1.15 6.80±1.83
5 4.22±0.90 7.45±1.52
6 Peak 6.05±1.26 9.68±1.76 eyes form, heartbeat observes
7
6.62±1.53
11.42±2.04
red bood circulation confrim dorsal and ventral yolksac shrink
8
Abrupt reduction
4.67±0.88
8.95±1.51
minute tubercle contract and reduce
9 3.51±0.75 6.24±1.02 caudal fin begin to develop
10 2.43±0.46 4.28±0.58 lens complete
11
Reduction
1.72±0.30
3.27±0.40
Larvae were observed in the suprabranchial cavity minute tubercle completely reduce
12 1.61±0.23 3.09±0.51 pectoral and caudal fin develop
13 1.42±0.24 2.51±0.43 air bladder divide into two rooms
14 1.28±0.20 2.08±0.51
15 1.13±0.19 1.78±0.49
16 1.07±0.17 1.70±0.54
17 1.01±0.19 1.57±0.35
18 0.98±0.16 1.45±0.28
19 0.95±0.17 1.41±0.29
20 0.87±0.20 1.41±0.26
21 0.84±0.16 1.25±0.29
22 0.72±0.16 1.19±0.29
23 0.56±0.13 1.03±0.28
24 0.38±0.29 0.65±0.50 free-floating individuals appear
25 0.26±0.20 0.47±0.38
26 0.11±0.16 0.19±0.29
27 Disappearance - - all kind of fins complet
28 - - anus open and
29 - - yolk sac completely absorb
30 - - larvae become free swimmer