FishBase |
Main Ref: | Watson, W. 1996 |
max | min | mod | Ref. | |
Length at birth (mm) | 3.9 | |||
Preanal L. % TL |
Place of development | planktonic | |||
Larval area | Northeastern Pacific (California Current region); mid-Atlantic Bight; Northwestern Pacific (Japan) | |||
Yolk-sac | ovoid | Ref: | ||
Yolk | Oil globules | |||
Rows on tail | ||||
Other melanophores on tail |
Striking feature | light organs | |||
Striking shape lateral | normal (not striking) | dorsal | ||
Striking feature | light organs | |||
Shape of gut | spherical or gut loop | |||
Gas bladder early | pigmented | late | pigmented | |
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 | no rows | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head | |||
Urostyle region early | unpigmented | late | unpigmented | |
Peritoneum | with row of melanophores | |||
Pectorals | normal without melanophores | |||
Pelvics | fin rays only without melanophores | |||
Anal fin origin slightly anterior to dorsal fin origin; usually 0-1 myomeres between anus and anal fin origin; adipose fin present (develops at about 20 mm SL); moderately narrow eye; little pigment through postflexion stages; dorsolateral pigmentation on hindbrain by 8-11 mm; no caudal pigment; photophores present. Pigmentation: Preflexion-flexion: none initially; over gas bladder by about 4.7 mm; ventrolaterally on hindbrain at about 5.2 mm. Postflexion: dorsally on most of gut by about 10.2 mm; surrounding stomach, beginning at about 11 mm; dorsolaterally on hindbrain, beginning between 8-11 mm. Transformation: increasing on gut region and hindbrain; extending onto midbrain by about 18.9 mm. Sequence of fin development: caudal, anal, dorsal, pectorals and pelvics. |
max | min | mod | Ref. | |
Total number of myomeres | 41 | 39 | 35800 | |
Preanal number of myomeres | 18 | 15 | 35800 |
L 1st feeding | Ref. |
Months of presence of larvae
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max | Jan | Feb | Mar | Apr | ||
min | May | Jun | Jul | Aug | ||
mod | Sep | Oct | Nov | Dec |
Water parameters Metric characters |
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