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