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| Ontogeny of swimming ability in the European Sea Bass, Dicentrarchus labrax (L.) (Teleostei: Moronidae)
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| Leis, J.M.; Balma, P.; Ricoux, R.; Galzin, R. (2012). Ontogeny of swimming ability in the European Sea Bass, Dicentrarchus labrax (L.) (Teleostei: Moronidae)
Mar. Biol. Res. 8(3): 265-272. dx.doi.org/10.1080/17451000.2011.616898 |
| In: Marine Biology Research. Taylor & Francis: Oslo. ISSN 1745-1000, meer |
| Trefwoorden |
Dispersal phenomena; Gedrag; Juvenielen; Larven; Snelheid; Dicentrarchus labrax [Zeebaars] [WoRMS]; Moronidae [WoRMS]; Teleostei [Grondels] [WoRMS]; Marien |
| Abstract |
Development of critical speed (Ucrit) of reared young Sea Bass [6–63 days after hatch (DAH), 4–30 mm body length (BL)] at 18.5–21°C was measured using a swimming chamber. Critical speed increased from a mean of 2 cm s-1 at 6 DAH to 41 cm s-1 at 63 DAH at a rate of 0.6±0.03 cm s-1 day-1. When based on size (BL), Ucrit increased at a rate of 2.0±0.1 cm s-1 mm-1. Relative speed increased from 4.7 BL s-1 at 6 DAH to 13.1 BL s-1 at 33 DAH, and was thereafter 13.5–15.7 BL s-1. Sea Bass larger than about 11 mm (when the caudal fin forms) swam at Reynolds numbers > 1000, and were thus swimming in an inertial hydrodynamic environment. Sea Bass young swim fast enough from about 15 mm (approx. 27 DAH) to influence dispersal outcomes. |
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