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Preliminary experiments with the ciliate Fabrea salina as a potential live food for mariculture purposes
De Winter, F.; Persoone, G. (1976). Preliminary experiments with the ciliate Fabrea salina as a potential live food for mariculture purposes, in: Persoone, G. et al. (Ed.) Proceedings of the 10th European Symposium on Marine Biology, Ostend, Belgium, Sept. 17-23, 1975: 1. Research in mariculture at laboratory- and pilot scale. pp. 37-48
In: Persoone, G.; Jaspers, E. (Ed.) (1976). Proceedings of the 10th European Symposium on Marine Biology, Ostend, Belgium, Sept. 17-23, 1975: 1. Research in mariculture at laboratory- and pilot scale. IZWO: Wetteren. ISBN 90-6281-001-2. 620 pp., meer
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Documenttype: Congresbijdrage
Trefwoorden
    Fabrea salina Henneguy, 1890 [WoRMS]
    Marien/Kust
Auteurs  Top 
  • De Winter, F.
  • Persoone, G., meer
Abstract
    Mass culturing of suitable live foods for mariculture purposes is slowed down by the lack of fundamental knowledge on interesting food species with high nutritional value. Research at the laboratory level has shown that in this regard Fabrea salina, a pelagic heterotrichous marine ciliate, seems to be a promising species for the following reasons. a) It can easily be fed with inert foods such as dry yeast as well as with live algae. b) With Dunaliella viridis as sole food source, densities of several hundreds of ciliates per ml can be obtained quite easily. c) Fabrea salina is a very euryhaline organism: the tolerance range extends from normal seawater to over 100 promille salinity. d) The ciliate reproduces very well at high temperatures (>30°C). To determine the optimal temperature-salinity combination several experiments were carried out. Systems with continuous aeration such as e.g. raceways proved very promising for mass culturing F. salina. In 30 l containers (polyethylene bags of 15 cm diameter and 2 m height) densities of 200 organisms/ml were obtained with a generation time of 12 hr. Some preliminary experiments were devoted to the encysting process (useful for conservation and transport).
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