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Larvae Information Summary for
Lophius piscatorius
| Main Ref: | Russell, F.S. 1976 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 4.5 | 4 | 4.3 | |
| Preanal L. % TL | 51.4 | 33 | 38 | 65 |
| Place of development | planktonic | |||
| Larval area | to be filled | |||
| Yolk-sac | spherical pigmented | Ref: | ||
| Yolk | unsegmented | Oil globules | one oil globuleposteriorcentralpigmented | |
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| A hump-like projection into the dorsal primordial fin corresponds to the third ray of the fully-formed fin. Pelvic fins are very elongated. | ||||
Post larvae
| Striking feature | some dorsal fin rays very elongated | |||
| Striking shape lateral | other | dorsal | ||
| Striking feature | some dorsal fin rays very elongated | |||
| Shape of gut | aberrant | |||
| Gas bladder early | invisible | late | invisible | |
| Spinal armature early | no spines | late | no spines | |
| Other melanophores on tail | tail with single melanophore | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Rows on tail | no rows | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Urostyle region early | unpigmented | late | unpigmented | |
| Peritoneum | covered with melanophores | |||
| Pectorals | normal without melanophores | |||
| Pelvics | with elongated fin rays with melanophores | |||
| At a length of about 11 mm, the first dorsal fin has 5 rays. The pelvic fin consists of 4 rays which will be later 5, and which extend towards the tail. Presence of filament before the dorsal fin. | ||||
Meristic characters
| max | min | mod | Ref. | |
| Total number of vertebrae | 31 | 65 |
| L 1st feeding | Ref. | Months of presence of larvae | ||||
| max | Jan | Feb | Mar | Apr | ||
| min | May | Jun | Jul | Aug | ||
| mod | 6.5 | Sep | Oct | Nov | Dec | |
| Water parameters Metric characters |
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