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Evaluation of the ecological function of amphitoxin in the reef-dwelling sponge Callyspongia (Euplacella) biru (Haplosclerida: Callyspongiidae) at southwest Sulawesi, Indonesia Naturalis
Voogd, N.J. de; Haftka, J.J.H.; Hoeksema, B.W..
The ecological function of the secondary metabolite amphitoxin produced by Callyspongia (Euplacella) biru is evaluated by a forced confrontation with the free-living scleractinian coral Fungia fungites at different exposure times. Our major goal was to determine whether such a forced confrontation with a spatial com­petitor would cause a significant change in the concentration of amphitoxin in the sponge tissue, indicating a regulatory mechanism of amphitoxin production. Firstly, the concentrations of amphitoxin of sponge fragments submitted to forced confrontation with a mushroom coral did not differ between the exposure times. Secondly, all sponge fragments, including the controls had a consistently lower amphitoxin concentration during the course of the...
Tipo: Article / Letter to the editor Palavras-chave: Amphitoxin; Callyspongia (Euplacella) biru; Fungia fungites; Indonesia; Porifera; Spatial interaction; 42.72.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/214340
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