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Manipulated yeast diets as a partial algal substitute for the nursery culture of the hard clam Mercenaria mercenaria
Coutteau, P.; Hadley, N.H.; Manzi, J.; Sorgeloos, P. (1991). Manipulated yeast diets as a partial algal substitute for the nursery culture of the hard clam Mercenaria mercenaria, in: De Pauw, N. et al. Aquaculture and the environment: Short communications and abstracts of contributions presented at the International Conference Aquaculture Europe '91 Dublin, Ireland, June 10-12, 1991. Special Publication European Aquaculture Society, 14: pp. 77-78
In: De Pauw, N.; Joyce, J. (1991). Aquaculture and the environment: Short communications and abstracts of contributions presented at the International Conference Aquaculture Europe '91 Dublin, Ireland, June 10-12, 1991. Special Publication European Aquaculture Society, 14. European Aquaculture Society: Bredene. ISBN 90-71625-08-7. 332 pp., more
In: Special Publication European Aquaculture Society. European Aquaculture Society: Bredene. ISSN 0774-0689, more
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Keywords
    Aquaculture facilities > Hatcheries
    Composition > Chemical composition > Feed composition
    Cultures > Shellfish culture > Mollusc culture > Clam culture
    Developmental stages > Larvae > Invertebrate larvae
    Diets
    Feeding experiments
    Food preferences
    Rearing
    Marine/Coastal
Authors  Top 
  • Coutteau, P., more
  • Hadley, N.H.
  • Manzi, J.
  • Sorgeloos, P., more
Abstract
    Rearing bivalve molluscs in commercial hatchery and nursery systems has so far relied on the production of live algae, which is costly and often unpredictable. Therefore the development of satisfactory artificial diet would greatly reduce the operating costs of bivalve operations. The development of techniques to improve the nutritional composition and digestibility of yeasts resulted in a product with great potential as a substitute for unicellular algae. Previous work on the Manila clam Tapes semidecussata showed that replacing 80% of the algae by these manipulated yeasts resulted in growth rates of 64 to 93% in comparison with the growth rate obtained for the algal control. In the present study a standard culture test for evaluating algal substitutes for the hard clam Mercenaria mercenaria is proposed. The results of the first experiments on the partial replacement of the algae by yeast diets are reported.
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