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Larvae Information Summary for
Gobius niger
| Main Ref: | Russell, F.S. 1976 | |||
Yolk-sac larvae
| max | min | mod | Ref. | |
| Length at birth (mm) | 3 | 2.5 | 2.8 | 65 |
| Preanal L. % TL | 43.5 | 65 |
| Place of development | planktonic | |||
| Larval area | Eastern Atlantic and Mediterranean Sea | |||
| Yolk-sac | spherical | Ref: | ||
| Yolk | unsegmented | Oil globules | more than one oil globule | |
| Rows on tail | ventral row | |||
| Other melanophores on tail | tail with single melanophore | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| One single dorsal melanophore. | ||||
Post larvae
| Striking feature | none | |||
| Striking shape lateral | normal (not striking) | dorsal | normal (not striking) | |
| Striking feature | none | |||
| 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 | tail with single melanophore | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Pigmentation late | ||||
| Rows on tail | dorsal + lateral + ventral row | |||
| Other melanophores on tail | tail with single melanophore | |||
| Melanophores on head + trunk | melanophores on head + trunk | |||
| Urostyle region early | unpigmented | late | pigmented | |
| Peritoneum | covered with melanophores | |||
| Pectorals | normal without melanophores | |||
| Pelvics | strikingly large or elongated | |||
| One large ramified melanophore about midway on the ventral and dorsal contour. At 7-8 mm the rays ofthe second dorsal and the anal fins are developed. As in other Gobiidae, the gas bladder appears very early in the development, approx. at 3.0 mm. | ||||
Meristic characters
| max | min | mod | Ref. | |
| Total number of vertebrae | 29 | 27 | 28 | 65 |
| L 1st feeding | Ref. | Months of presence of larvae | ||||
| max | 4.5 | Jan | Feb | Mar | Apr | |
| min | 4 | May | Jun | Jul | Aug | |
| mod | 4.2 | Sep | Oct | Nov | Dec | |
| Water parameters Metric characters |
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