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Effects of culture density and bottom area on growth and survival of the cuttlefish Sepia officinalis (Linnaeus, 1758)
Domingues, P.; Márquez, L. (2010). Effects of culture density and bottom area on growth and survival of the cuttlefish Sepia officinalis (Linnaeus, 1758). Aquacult. Int. 18(3): 361-369.
In: Aquaculture International. Springer: London. ISSN 0967-6120, more
Peer reviewed article  

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    Cultures; Density; Growth rate; Sepia officinalis Linnaeus, 1758 [WoRMS]; Marine
Author keywords
    Bottom area; Culture density; Cuttlefish

Authors  Top 
  • Domingues, P.
  • Márquez, L.

    The effects of culture density and bottom areas on cuttlefish (Sepia officinalis) culture were studied. Cuttle fish were cultured under three experimental combinations of culture density and bottom area: (1) high density and small bottom surface area; (2) low density and large bottom area; (3) high density and large bottom area. Each experimental protocol was repeated in triplicate. Average weights at the end of the experiment were of 65.8 ± 5.8, 87.1 ± 5.6 and 78.7 ± 5.9 g for cuttlefish cultured under the conditions of protocol 1, 2, and 3, respectively; these differences were significant between each of the three groups. Total biomass increased faster (up to 7.5 kg per tank) under the high density/large bottom area conditions (protocol 3) due to the larger number of animals and low mortality in those tanks. Growth rates (%bw day−1) were different between protocols, with growth rates of 2.1 ± 0.1, 3.0 ± 0.2, and 2.5 ± 0.1%bw day−1 obtained for cuttlefish cultured according to protocol 1, 2, or 3, respectively. Average feeding rates were similar for the three groups—10.7 ± 0.8, 9.7 ± 2.0, and 9.6 ± 1.1%bw day−1 for cuttlefish cultured according to protocols 1, 2, and 3, respectively, while food conversions (%) were different—21.5 ± 3.2, 32.4 ± 2.5, and 27.0 ± 1.1%bw day−1, respectively. Total mortality was high in the high density/small bottom area tanks, 30%, while it was very low for the groups cultured under conditions of low and high density/large bottom area, 4%. Based on these results, we conclude that culture conditions that provide large bottom areas also provide good survival conditions and promote growth in comparison those with small bottom areas, even under conditions of lower culture densities.

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