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| Age and growth of Psetta maxima (Linné, 1758) and Scophthalmus rhombus (Linné, 1758) in the Gulf of Lion (Mediterranean) |  |
| Robert, F.; Vianet, R. (1988). Age and growth of Psetta maxima (Linné, 1758) and Scophthalmus rhombus (Linné, 1758) in the Gulf of Lion (Mediterranean) J. Appl. Ichthyol. 4(3): 111-120 |
| In: Journal of Applied Ichthyology = Zeitschrift für angewandte Ichthyologie. Blackwell: Berlin. ISSN 0175-8659, meer |
| Trefwoorden |
Foto's; Groei; Length-weight relationships; Otolith reading; Seizoenale variaties; Sex ratio; Psetta maxima (Linnaeus, 1758) [tarbot] [WoRMS]; Scophthalmus rhombus (Linnaeus, 1758) [Griet] [WoRMS]; MED, France, Lion Gulf [gazetteer]; Marien |
| Abstract |
The age and growth of the turbot and the brill have been determined with otoliths (sagitta). On these otoliths, the formation of the hyaline zone can be seen in the summer and an opaque zone in the winter. In both species, the two sexes have identical length/weight relationships. By contrast, there are wide divergences in the age/length and age/weight relationships. At the same age in both species, females are always longer and heavier than males. |
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