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Larvae Information Summary for
Champsocephalus gunnari
| Main Ref: | North, A.W. and A. Kellermann 1990 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 15.3 | 12 | ||
| Preanal L. % TL |
| Place of development | planktonic | |||
| Larval area | Atlantic Antarctic | |||
| Yolk-sac | Ref: | |||
| Yolk | Oil globules | |||
| Rows on tail | ||||
| Other melanophores on tail | ||||
Post larvae
| Striking feature | teeth clearly visible | |||
| Striking shape lateral | dorsal | |||
| Striking feature | teeth clearly visible | |||
| Shape of gut | triangular | |||
| Gas bladder early | late | |||
| Spinal armature early | late | |||
| Pigmentation early | ||||
| Rows on tail | dorsal + ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on trunk | |||
| Rows on tail | dorsal + ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on trunk | |||
| Peritoneum | with row of melanophores | |||
| Pectorals | normal | |||
| Pelvics | normal (i.e. small or absent) | |||
| Eyes circular, without ventral extension to the orbit; pectoral fin base not stalk-like; pectoral fin base normal and does not extend ventrally below mid-abdomen level; teeth obvious, small in pre-flexion larvae, long and canine-like in later larvae; small pelvic fin in early larvae; a single dorsal and ventral row of melanophores present. Larval pelagic phase is long (Ref. 71843). | ||||
| 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 |
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