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Larvae Information Summary for
Maurolicus muelleri
| Main Ref: | Bertolini, F., U. D'Ancona, E. Padoa Montalenti, S. Ranzi, L. Sanzo, A. Sparta, E. Tortonese and M. Vialli 1956 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 3 | |||
| Preanal L. % TL | 61.1 |
| Place of development | planktonic | |||
| Larval area | Eastern Atlantic; Northwestern Pacific (East China Sea, Japan) | |||
| Yolk-sac | ovoid unpigmented | Ref: | ||
| Yolk | segmented | Oil globules | one oil globuleotherventralunpigmented | |
| Rows on tail | no rows | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | no melanophores on head or trunk | |||
| The yolk sac reaches the anterior profile of the head. The yolk is composed of large vesicles which becomes minutely granular on the periphery. | ||||
Post larvae
| Striking feature | light organs | |||
| Striking shape lateral | normal (not striking) | dorsal | normal (not striking) | |
| Striking feature | light organs | |||
| Shape of gut | elongated | |||
| Gas bladder early | pigmented | late | pigmented | |
| Spinal armature early | no spines | late | no spines | |
| Pigmentation early | ||||
| Rows on tail | ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head | |||
| Pigmentation late | ||||
| Rows on tail | ventral row | |||
| Other melanophores on tail | no other melanophores | |||
| Melanophores on head + trunk | melanophores on head | |||
| Urostyle region early | unpigmented | late | unpigmented | |
| Peritoneum | without melanophores | |||
| Pectorals | normal without melanophores | |||
| Pelvics | normal (i.e. small or absent) | |||
| The early larvae have vertically elongated eyes. The pectoral fins are small, rounded and membranous. Post larvae measure 11-12 mm (Ref. 57912). At this length, photophore composition is essentially identical with Araiophos eastropas adult (Ref. 57912). | ||||
| L 1st feeding | Ref. |
Months of presence of larvae
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| max | 5.45 | Jan | Feb | Mar | Apr | |
| min | 4.5 | May | Jun | Jul | Aug | |
| mod | 5 | Sep | Oct | Nov | Dec | |
| Water parameters Metric characters |
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