Table 2.
Meristics and main ontogenetic characters of larvae and juvenile Hyphessobrycon eques reared at mean temperature of 28 °C . Age is given in days post hatching (dph)

Stage dph LT*
Main morphological and ontogenetic characters Fig. 3.
Mean±SD (mm)
Prelarva 0 2.89 ± 0.16 35 38 myotomes; all fins formed membrane shape; melanophores appeared on yolk A
2 3.42 ± 0.38 Swimbladder formed upper of yolk; beginning of divide pelvic fin with anal fin; pelvic and anal fin’s division begin; cap of melanophores appeared on eyes and base of tale B

3 3.72 ± 0.24 Yolk almost fully absorbed; mouth and anal open completely; visible pectoralfin; swimbladder develop lagely; eating start (Branchionus rotundiformis) C
Postlarva 5 3.80 ± 0.40 Pelvic fin and anal fin divided completely; 5 soft rays formed in the caudal fin; head-part elarged; mandible developed lagely; melanophores appeared upper of swimbladder and head-part D
15 4.78 ± 0.15 Dorsal fin was shortened; vertebral column and vascular pole appeared conspicuously; mandible was lengthened than the upper jaw; cannibalism was observed E
25 5.90 ± 0.72 5 stems formed in the pectoral fin; caudal-fin’s divide begin; terminal part of notochord flexed 45° F
30 7.20 ± 0.86 8 stems were formed in the dorsal fin; 6 stems formed in pectoral fin; 17 stems formed in the anal fin; caudal fin be homocercal tail G
40 10.2 ± 1.20 Dorsal, anal, caudal fin were divided completely; 10 stems formed in dorsal fin; 21 stems formed in anal fin and caudal fin H
Juvenile 45 12.5 ± 1.60 Adipose fin formed upper of caudal peduncle; 7 stems formed in pelvic fin; melanophores appeared on operculum and center of dorsal fin; band of melanophores appeared on terminal of anal fin I
LT: total length; SD: standard deviation.