Effect of light intensity on the survival of European spiny lobster (Palinurus elephas) larvae reared in aquaculture system

Filippi, Jean-José; Millot, Rémi; Bracconi, Jérémy; Ligorini, Viviana; Gattacceca, Nicolas; Crescioni, Ambre; Ronchi-Perfetti, Jean-Baptiste; Demolliens, Mikaël; Pugliese, Sally; Delmas, Alban; Boussard, Alizée; Vela, Alexandre; Bastien, Romain; Pasqualini, Vanina; Aiello, Antoine

doi:10.1016/j.aqrep.2024.102083

Cited by 1 publication

(1 citation statement)

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“…In this context, several research programs have been developed at the Stella Mare research unit, Corsica, France, focusing particularly on patrimonial species such as Maja squinado [30], Palinurus elephas [31], Dentex dentex, and S. umbra [32] for restoration purposes. These programs aim to increase the production of juveniles to eventually supply sufficient quantities for ecological restoration experiments around the island.…”

Section: Introductionmentioning

confidence: 99%

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

Millot,

Demolliens,

Filippi

et al. 2024

Fishes

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Successful aquacultural production of juvenile fish requires that the optimal rearing conditions be applied. However, for many fish species, there is a significant knowledge gap concerning these conditions. In this study, we evaluated the effects of stocking density on the survival and growth of brown meagre, Sciaena umbra (L.), during rearing trials in an experimental hatchery. This research forms part of a feasibility project to improve the aquacultural production of brown meagre. Four initial larval density treatments (5, 10, 30, and 70 larvae per L) were established. At 0, 9, 17, 22, and 25 days post-hatching, we measured the total length, coefficient of variation in length, and specific growth rate. The physicochemical water parameters remained at satisfactory levels for fish culture throughout the experiment. Lower densities promoted better growth in terms of total length, specific growth rate, and survival. We observed a significant negative correlation between larval density and length growth/survival. Thus, the low larval density treatment yielded the highest survival (48.5% ± 3.46%), growth in final total length (11.9 ± 1.09 mm), and specific growth rate (5.13% ± 0.39% per day). Increased stocking density therefore negatively affects growth and survival, reduces homogeneity, but increases the production of S. umbra larvae. This study helps identify optimal aquaculture conditions for maximizing the production of juvenile S. umbra for ecological restoration.

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Section: Introductionmentioning

confidence: 99%