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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Studies of the life-history and energetics of marine and brackish-water nematodes: 1. Demography of Monhystera disjuncta at different temperature and feeding conditions Vranken, G.; Herman, P.M.J.; Heip, C.H.R. (1988). Studies of the life-history and energetics of marine and brackish-water nematodes: 1. Demography of Monhystera disjuncta at different temperature and feeding conditions, in: Heip, C.H.R. et al. (Ed.) Collected papers on meiofauna dynamics and energy flow. pp. 1-6 In: Heip, C.H.R. et al. (Ed.) (1988). Collected papers on meiofauna dynamics and energy flow. Delta Institute for Hydrobiological Research: Yerseke. , meer Is gerelateerd aan: Vranken, G.; Herman, P.M.J.; Heip, C.H.R. (1988). Studies of the life-history and energetics of marine and brackish-water nematodes: 1. Demography of Monhystera disjuncta at different temperature and feeding conditions. Oecologia 77: 296-301. https://dx.doi.org/10.1007/BF00378033, meer

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Trefwoorden

Aquatic communities > Benthos > Meiobenthos Aquatic organisms > Cultured organisms Bioenergetics Environmental effects > Temperature effects Environments > Aquatic environment > Brackishwater environment Environments > Aquatic environment > Marine environment Feeding Life history Properties > Water properties > Temperature > Water temperature Monhystera disjuncta Bastian, 1865 [WoRMS] Marien/Kust

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Auteurs		Top
Vranken, G. Herman, P.M.J., meer Heip, C.H.R., meer

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Abstract

Aspects of the demography of Monhystera disjuncta were investigated at different feeding conditions (monoxenic cultures with different bacterial strains, and different densities in the feeding suspension with one strain). Embryonic development time, minimum generation time, egg deposition rate and adult longevity depend on temperature, quality and quantity of food offered. Body mass at maturity is an allometric function of food density. It is shown that a previously inferred selectivity in food uptake is an artifact of culture conditions. pH buffering and addition of sterols permit culture of the species on a wide variety of bacterial strains. M. disjuncta is less well adapted to take advantage of high food density than are nematodes from polysaprobic environments. The animals channel surplus energy intake into a larger body mass, without being able to increase their rate of population growth accordingly.

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