Main Ref: | Watson, W. and E.M. Sandknop 1996 |
min | max | mod | Ref. | |
Length at birth (mm) | 4.8 | |||
Preanal L. % TL | 36 | 65 |
Place of development | planktonic | |||
Larval area | Northeastern Pacific (California Current Region); Northwestern Pacific (Japan) | |||
Yolk-sac | Ref: | |||
Yolk | Oil globules | |||
Rows on tail | ||||
Other melanophores on tail |
Striking feature | teeth clearly visible | |||
Striking shape lateral | normal (not striking) | dorsal | ||
Striking feature | teeth clearly visible | |||
Shape of gut | elongated | |||
Gas bladder early | absent | late | absent | |
Spinal armature early | no spines | late | no spines | |
Pigmentation early | ||||
Rows on tail | no rows | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head | |||
Pigmentation late | ||||
Rows on tail | dorsal + ventral + lateral row | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Urostyle region early | unpigmented | late | unpigmented | |
Peritoneum | with row of melanophores | |||
Pectorals | normal covered with melanophores | |||
Pelvics | fin rays only without melanophores | |||
No peritoneal pigment before about 9.8 mm, then one anterior patch through 19 mm, dorsolateral pair of patches added posteriorly by 20 mm. Pigmentation: Preflexion-postflexion: none except on choroid tissue below eye before about 9 mm; 1 peritoneal patch above anterior middle of gut by 10 mm, shifting forward to level of pectoral fin by about 15 mm; pair of dorsolateral peritoneal patches above hindgut midway between pelvic fin and anus at about 20 mm. Transformation: dorsolateral and ventrolateral stripes form adjacent to lateral midline of tail by 25 mm, spread cephalad and caudad, become connected as bar across end of caudal peduncle by about 28 mm; peritoneal sections fuse by 33-55 mm. Sequence of fin development: caudal and pectorals, anal, dorsal, pelvics. |
min | max | mod | Ref. | |
Total number of myomeres | 45 | 49 | 35929 |
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 |