Differential Utilization of Allochthonous and Autochthonous Inputs by Aquatic Invertebrates in Some New Zealand Streams: A Stable Carbon Isotope Study

@inproceedings{Rounick1982DifferentialUO,
  title={Differential Utilization of Allochthonous and Autochthonous Inputs by Aquatic Invertebrates in Some New Zealand Streams: A Stable Carbon Isotope Study},
  author={James S. Rounick and Michael J. Winterbourn and Graeme L. Lyon},
  year={1982}
}
Energy utilization by benthic invertebrates from several New Zealand streams was investigated using stable carbon isotope analysis. 13C/12C ratios indicated that the faunas of small, forested streams depended primarily on allochthonous sources of carbon whereas variable utilization of allochthonous and autochthonous materials was shown by species from a grassland stream. Relatively '3C-depleted values obtained for the mayfly, Deleatidium from forested sites suggest that its larvae assimilate… CONTINUE READING

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