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Larvae Information Summary for
Scaphirhynchus albus
| Main Ref: | Snyder, D.E. 2002 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 9 | 8 | ||
| Preanal L. % TL |
| Place of development | planktonic | |||
| Larval area | riverine | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| At 10-11 mm, well-pigmented eyes, a forming mouth and barbel buds are present. At 12-13 mm, pelvic bud are forming. At 18-19 mm, yolk is absorbed. | ||||
Post larvae
| Striking feature | ||||
| Striking shape lateral | dorsal | |||
| Striking feature | ||||
| Shape of gut | ||||
| Gas bladder early | late | |||
| Spinal armature early | late | |||
| At 21-26 mm, first median fin rays appear. At 30-31 mm, first anal fin rays appear. At >81 mm, last caudal fin rays appear. | ||||
| L 1st feeding | Ref. | Months of presence of larvae | ||||
| max | Jan | Feb | Mar | Apr | ||
| min | May | Jun | Jul | Aug | ||
| mod | Sep | Oct | Nov | Dec | ||
| Similar species 1 | 2596Scaphirhynchusplatorynchus |
| Remarks | |
| Water parameters Metric characters |
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