First Results on Spawning and Larval Rearing of the Brown Meagre (Sciaena umbra)

Effect of Stocking Density on Survival and Growth of Brown Meagre Sciaena umbra (L.) Larvae

“…Generally, size heterogeneity is both the cause as well as the consequence of cannibalistic behavior [14]. However, we observed no cannibalistic behavior during the experiment, which is consistent with the previous observations of Millot et al [11] and Hamzaçebi and Can [10]. Cannibalistic behavior tends to emerge at 30 DPH [11] and between 35 and 40 DPH [10].…”

“…In this study, the highest recorded survival reached 52.88% ± 3.78%, which is closer to that reported by Abreu [70] at 61.5% but lower than the survival reported by Hamzaçebi and Can [10] at 72.5% ± 0.70%. The differences among the studies could be attributed to dissimilar experimental conditions.…”

“…The differences among the studies could be attributed to dissimilar experimental conditions. Indeed, Hamzaçebi and Can [10] reared the larvae in a green-water system. Nevertheless, compared to other studies on fastgrowing species, our observed survival rate was close to that for meagre (Argyrosomus regius; 53.24% ± 12.03%) [21], and sharp snout seabream (Puntazzo puntazzo; 60.6%) [70], although higher than for the greater amberjack (Seriola dumerili; 3.5%) [46].…”

“…Sciaenids are considered efficient aquaculture species given their relatively simple needs to ensure successful rearing [9]. Recently, S. umbra has been proposed as a candidate for marine finfish diversification in commercial aquaculture and for restocking programs in the Mediterranean Sea because this species (i) has a fast growth rate; (ii) has shown successful spontaneous reproduction of wild fish in captivity; (iii) is of patrimonial interest; and (iv) is sought for its high-quality flesh [10,11]. Indeed, there is increased interest worldwide in fast-growing species in aquaculture, such as the greater amberjack (Seriola dumerili) and the cobia (Rachycentron canadum), where more efforts have been made [12].…”

Let them go free: Spatial behaviour following the experimental release of hatchery-reared juveniles Sciaena umbra and Dentex dentex

“…Both species are the subject of breeding programs for potential conservation and restocking purposes (e.g. Chatzifotis et al, 2006;Efthimiou et al, 1994;Glamuzina et al, 1989;Hamzaçebi and Can, 2021;Koumoundouros et al, 2004). However, no experimental study, as far as we know, has focused on hatcheryreared S. umbra and D. dentex juvenile behaviours for restocking purposes.…”