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Strategy for increasing the variety of live-food species in intensive aquaculture (Abstract)
Nilssen, J.P. (1989). Strategy for increasing the variety of live-food species in intensive aquaculture (Abstract), in: De Pauw, N. et al. (Ed.) Aquaculture: a biotechnology in progress: volume 1. pp. 753
In: De Pauw, N. et al. (1989). Aquaculture: a biotechnology in progress: volume 1. European Aquaculture Society: Bredene. ISBN 90-71625-03-6. 1-592 pp., more

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Document type: Conference paper

Keyword
    Marine/Coastal

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  • Nilssen, J.P.

Abstract
    Presently very few live-food species are used in intensive aquaculture worldwide. Most of these species were detected by chance rather than by ecological research. Several criteria must be fulfilled for an organism to be succesfully used in intensive aquaculture: 1) the species should be easily cultivated (both energetically and economically) at relatively stable, high densities; 2) it should be easily manipulated with rather simple equipment; 3) the biochemical content of the species should in itself or by organic enrichment, be valuable food for the species to be cultured.Animals inhabiting all sorts of nutrient-rich waters often fullfil the above criteria. In natural eutrophied freshwaters, the cladoceran Daphnia spp., some rotifers and copepods are suitable species. Organisms for rearing marine species should be searched for in coastal rock-pools. The great majority of algae and zooplankton already in use as live food for major aquaculture species, possess the above described requirements. Further success in intensive and semi-intensive rearing of aquaculture organisms may depend upon isolating a greater variety of populations and species from natural environments.

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