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    A Mixture of Manganese, Silica and Phosphorus Supplementation Alters the Plankton Density, Species Diversity, Gut Microbiota and Improved the Health Status of Cultured Marron (Cherax cainii, Austin and Ryan, 2002)

    83489.pdf (701.8Kb)
    Access Status
    Open access
    Authors
    Tulsankar, Smita
    Foysal, Md Javed
    Cole, Anthony
    Gagnon, Marthe Monique
    Fotedar, Ravi
    Date
    2021
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Tulsankar, S.S. and Foysal, M.J. and Cole, A.J. and Gagnon, M.M. and Fotedar, R. 2021. A Mixture of Manganese, Silica and Phosphorus Supplementation Alters the Plankton Density, Species Diversity, Gut Microbiota and Improved the Health Status of Cultured Marron (Cherax cainii, Austin and Ryan, 2002). Biological Trace Element Research. 200: pp. 1383–1394.
    Source Title
    Biological Trace Element Research
    DOI
    10.1007/s12011-021-02721-2
    ISSN
    0163-4984
    Faculty
    Faculty of Science and Engineering
    School
    School of Molecular and Life Sciences (MLS)
    Remarks

    This is a post-peer-review, pre-copyedit version of an article published in Biological Trace Element Research. The final authenticated version is available online at: http://doi.org/0.1007/s12011-021-02721-2.

    URI
    http://hdl.handle.net/20.500.11937/83527
    Collection
    • Curtin Research Publications
    Abstract

    Trace element supplementation to the freshwater environment can influence the plankton density and species diversity, contributing to the nutrition of aquaculture species, especially during the juvenile stage. An experiment was conducted under laboratory conditions to evaluate the effects of supplementing different mixtures of manganese, silica and phosphorus on the plankton density and species diversity and their impact on cultured juvenile marron (Cherax cainii, Austin and Ryan, 2002). Manganese, silica and phosphorus in concentrations of 0.0024, 0.41, 0.05 mg*L ; 0.0041, 0.82, 0.12 mg*L ; and 0.0058, 1.26, 0.25 mg*L respectively termed as low, medium and high were supplemented to tank water containing a phytoplankton density of 3.77 ± 0.16 × 10 cells*L and 292.9 ± 17.6 individuals*L of zooplankton, and plankton growth was observed every 24 h for 6 days. Afterwards, a 3-month trial was conducted studying the effects of these trace element concentrations and resulting plankton densities on marron growth, survival, moulting, gut microbiota and health indices. Silica supplementation at high concentration increased the diatom abundance, silica and phosphorus supplementation at higher concentration that resulted in a significant increase in plankton density and species diversity, leading to improved marron health indices than the control and the tanks receiving a low concentration. Marron-specific growth rate, weight gain and dissolved copper concentration in haemolymph were significantly higher in tanks with higher supplementation and higher plankton density. Marron survival, moult interval and total haemocyte count were not affected by the supplementation. Marron gut microbiota at higher trace element concentration supplementation showed a significant increase in abundance of phosphate solubilizing bacteria.

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