Influence of Crassostrea gigas mixed with Ostrea edulis on the incidence of Bonamia disease

The effect of mixing Japanese oysters ( Crassostrea gigas) with flat oysters ( Ostrea edulis) in bags on the incidence of bonamiasis was tested with four proportions of C. gigas (0%, 25%, 50% and 75%) and two total densities (200 and 400 oysters per bag). At density 200, the survival rates of flat o...

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Veröffentlicht in:	Aquaculture 1991-01, Vol.93 (3), p.263-271
Hauptverfasser:	le Bec, C., Mazurie, J., Cochennec, N., le Coguic, Y.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal, plant and microbial ecology Biological and medical sciences BONAMIA Bonamia ostreae CRASSOSTREA GIGAS EPIDEMIOLOGIA EPIDEMIOLOGIE EPIDEMIOLOGY FRANCE FRANCIA Fundamental and applied biological sciences. Psychology Marine OSTREA EDULIS OSTREICULTURE OSTRICULTURA OYSTER CULTURE
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Beschreibung
Zusammenfassung:	The effect of mixing Japanese oysters ( Crassostrea gigas) with flat oysters ( Ostrea edulis) in bags on the incidence of bonamiasis was tested with four proportions of C. gigas (0%, 25%, 50% and 75%) and two total densities (200 and 400 oysters per bag). At density 200, the survival rates of flat oysters, in 15 months, increased significantly from 20% without C. gigas to 35% with 75% C. gigas; with 400 oysters per bag, survivals were lower. This apparent effect of C. gigas might be the result of correlative variations in the number of O. edulis per bag.
ISSN:	0044-8486 1873-5622
DOI:	10.1016/0044-8486(91)90238-3