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An improved separator box forArtemia nauplii and other phototactic invertebrates
Une boite de séparation plus efficiente pour les larvesd'Artemia et autres invertébrés phototactiques
Helgoländer wissenschaftliche Meeresuntersuchungen volume 23, pages 243–247 (1972)
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Un appareil cylindrique, simple à construire, est décrit, permettant la séparation des larves d'Artemia de leurs coquilles vides ou des oeufs non éclos, et une récupération facile des nauplii. Il peut en outre servir à séparer d'autres organismes phototactiques, soit de particules inertes, soit d'organismes non phototactiques. Par sa construction cylindrique les «effets de coin» sont annulés, ce qui assure une séparation bien plus efficiente qu'avec les appareils conventionnels.
Summary
1. A simple cylindrical hatching and separator box is described forArtemia salina nauplii (and other phototactic invertebrates), in which the “corner seeking effect” responsible for poor separation is avoided, and from which nauplii can be recovered very conveniently.
2. Separation is achieved by partly unscrewing an internal and closed cylinder from its fixed counter-part glued to the bottom of the box, till two slits are freed through which the nauplii migrate from the darkened internal hatching cylinder into the illuminated exterior compartment. Rescrewing the former cylinder separates the larvae from debris and unhatched eggs.
Literature cited
Boone, E. &Baas-Becking, L. G. M., 1931. Salt effects on eggs and nauplii ofArtemia salina L. J. gen. Physiol.14, 753–763.
Costlow, J. D. (Ed.), 1969. Marine Biology. Vol. 5. Gordon & Breach, New York, 606 pp.
Forster, J. R. M. &Wickins, J. F., 1967. Experiments in the culture of the prawnPalaemon serratus (Pennant). Coun. Meet. int. Coun. Explor. Sea (= C.M. − I.C.E.S.) E. 13.
Greve, W., 1968. The “planktonkreisel”, a new device for culturing zooplankton. Mar. Biol.1, 201–203.
Jennings, R. H. &Whitaker, D. M., 1941. The effect of salinity upon the rate of excystment ofArtemia salina. Biol. Bull. mar. biol. Lab., Woods Hole,80, 194–201.
Nimura, Y., 1967. Biology of the brine shrimp — Review. Bull. Jap. Soc. scient. Fish.33, 690–702.
Rice, A. L. &Williamson, D. I., 1970. Methods for rearing larval decapod Crustacea. Helgoländer wiss. Meeresunters.20, 417–434.
Shelbourne, J. E., Riley, J. D. &Tacker, G. T., 1963. Marine Fish culture in Britain. I. Plaice rearing in closed circulation at Lowestoft, 1957–1960. J. Cons. perm. int. Explor. Mer28, 50–69.
Sorgeloos, P., 1971. De kweekproblematiek bij invertebraten: experimenten metArtemia salina L. Thesis, Gent. (Unpubl.)
—— &Persoone, G., 1972. Three simple culture devices for aquatic invertebrates and fish larvae with continuous recirculation of the medium. Mar. Biol. (In press).
Teramoto, K. &Kinoshita, S., 1961. Some informations on the culture ofArtemia. Bull. Jap. Soc. scient. Fish.27, 801–804.
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“Navorsingsstagiair” at the Belgian “National Fund for Scientific Research”.
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Persoone, G., Sorgeloos, P. An improved separator box forArtemia nauplii and other phototactic invertebrates. Helgolander Wiss. Meeresunters 23, 243–247 (1972). https://doi.org/10.1007/BF01609691
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DOI: https://doi.org/10.1007/BF01609691