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Hatchery cultivation of the common cockle (Cerastoderma edule L.): from conditioning to grow-out
Pronker, A.E.; Peene, F.; Donner, S.; Wijnhoven, S.; Geijsen, P.; Bossier, P.; Nevejan, N.M. (2015). Hatchery cultivation of the common cockle (Cerastoderma edule L.): from conditioning to grow-out. Aquac. Res. 46(2): 302–312.
In: Aquaculture Research. Blackwell: Oxford. ISSN 1355-557X; e-ISSN 1365-2109, more
Peer reviewed article  

Available in  Authors 

    Cerastoderma edule (Linnaeus, 1758) [WoRMS]; Isochrysis galbana Parke, 1949 [WoRMS]
Author keywords
    hatchery; nursery; grow-out; Cerastoderma edule, microalgae diets

Authors  Top 
  • Pronker, A.E.
  • Peene, F.
  • Donner, S.
  • Wijnhoven, S., more
  • Geijsen, P.
  • Bossier, P.
  • Nevejan, N.M., more

    This study describes for the first time the cultivation of Cerastoderma edule on a commercial scale. A protocol to grow F2 generation cockles was developed, which led to fine-tuning experiments for broodstock conditioning and spat growth.Broodstock animals were conditioned with diets of Isochrysis galbana (T-Iso) or Tetraselmis suecica, whereas a third group was not fed. The best diet, T. suecica, induced 12 females out of 100 animals to spawn a total of 3 380 000 eggs. The non-fed group did not spawn. Cockle spat (4.9 ± 1.0 mm) grew best when given a mixed diet of C. muelleri, T-Iso and Sceletonema costatum, or a mixture of P. tricornutum and S. costatum at a concentration of 240 cells µl-1 day-1, resulting in a tripling of their wet weight after 14 days. The impact of density, burrowing substrate and food availability on cockle spat growth (41 days old, 5.6 ± 1.2 mm) was studied for 11 weeks. Best results were obtained by culturing spat at ad libitum food conditions at 500 ind m-2, resulting in an average growth rate of 168 µm day-1, an average final size of 19.0 ± 1.9 mm and a total final biomass of 1040 g m-2.

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