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Titre :
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Production of Nereis diversicolor O. F. Müller (Polychaeta) in a shallow brackish-water pond
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Auteurs :
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C. Heip ;
R. Herman
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Publisher :
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Estuarine and Coastal Marine Science, 8(4)
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Type de document :
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Article
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Année de publication :
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April 1, 1979
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Format :
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297-305
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Langues:
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Anglais
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Mots-clés:
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brackish waters
;
benthos
;
life-cycles
;
Polychaeta
;
production
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Résumé :
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A Nereis diversicolor population inhabiting a shallow and landlocked brackis-hwater pond in Belgium has been studied over one year to estimate its production. This population reproduces from May to December with a peak in August. Total numbers vary between 5000 and 17000 individuals/m2, the total standing stock lies between 13 and 39 g dry weight per m2, with a mean of 24 g dry wt m−2. Individuals grow linearly over long periods of time, although slower when they get larger. Production was calculated by determining the weight-specific growth-rate of the different size-classes in the population; production in the year 1975–1976 was equal to 61 g dry wt m−2 year−1. The PB-ratio was equal to 2·5. This value is compared with the value for other Polychaeta and is intermediate.
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En ligne :
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http://www.sciencedirect.com/science/article/pii/0302352479900471
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