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  • Trophic ecology of northern Australia's terapontids: ontogenetic dietary shifts and feeding classification

    Author(s)
    Davis, AM
    Pearson, RG
    Pusey, BJ
    Perna, C
    Morgan, DL
    Burrows, D
    Griffith University Author(s)
    Pusey, Bradley J.
    Perna, Colton N.
    Year published
    2011
    Metadata
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    Abstract
    The diets of 21 terapontid species from freshwater environments in northern Australia were investigated to determine the similarity and dissimilarity among species and the extent of any ontogenetic shifts. Distinct ontogenetic dietary shifts occurred in all species for which sufficient data were available, with many species passing through several discrete trophic categories during their life histories. Diets of all juvenile terapontids were similar, mainly comprising aquatic insects and zooplankton. Larger size classes of terapontids diverged into a broad spectrum of feeding groups comprising carnivorous dietary modes ...
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    The diets of 21 terapontid species from freshwater environments in northern Australia were investigated to determine the similarity and dissimilarity among species and the extent of any ontogenetic shifts. Distinct ontogenetic dietary shifts occurred in all species for which sufficient data were available, with many species passing through several discrete trophic categories during their life histories. Diets of all juvenile terapontids were similar, mainly comprising aquatic insects and zooplankton. Larger size classes of terapontids diverged into a broad spectrum of feeding groups comprising carnivorous dietary modes (including piscivory and lepidophagy), omnivory (including frugivory and consumption of allochthonous prey), herbivory and detritivory. The results indicate that the terapontids represent Australia's most trophically diverse freshwater fish family.
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    Journal Title
    Journal of Fish Biology
    Volume
    78
    Issue
    1
    DOI
    https://doi.org/10.1111/j.1095-8649.2010.02862.x
    Subject
    Conservation and Biodiversity
    Ecology
    Zoology
    Fisheries Sciences
    Publication URI
    http://hdl.handle.net/10072/44294
    Collection
    • Journal articles

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