Macroecology of fish community biomass – size structure

Effects of invasive species and river regulation

R. Keller Kopf, Paul Humphries, Nick R. Bond, Neil C. Sims, Robyn J. Watts, Ross M. Thompson, Sally Hladyz, John D. Koehn, Alison J. King, Nicole McCasker, Simon McDonald

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    The biomass of organisms of different sizes is increasingly being used to explore macroscale variation in food-web and community structure. Here we examine how invasive species and river flow regulation affect native fish biomass and fish community log10 biomass – body mass scaling relationships in Australia’s largest river system, the Murray–Darling. The log10 biomass – body mass scaling exponent (scaling B) of invasive fishes (95% CI: −0.14 to −0.18) was less negative than for native fishes (95% CI: −0.20 to −0.25), meaning that invasive species attained a higher biomass in larger size-classes compared to native species. Flow alteration and invasive common carp (Cyprinus carpio) biomass were correlated with severe reductions in native fish biomass ranging from −47% to −68% (95% CI). Our study provides novel evidence suggesting that invasive and native communities have different biomass – body mass scaling patterns, which likely depend on differences in their trophic ecology and body size distributions. Our results suggest that restoration efforts using environmental flows and common carp control has potential to boost native fish biomass to more than double the current level.

    Original languageEnglish
    Pages (from-to)109-122
    Number of pages14
    JournalCanadian Journal of Fisheries and Aquatic Sciences
    Volume76
    Issue number1
    DOIs
    Publication statusPublished - 1 Jan 2019

    Fingerprint

    macroecology
    size structure
    invasive species
    ecology
    rivers
    biomass
    fish
    river
    Cyprinus carpio
    body mass
    regulation
    effect
    fish communities
    flow regulation
    river flow
    native species
    river system
    food webs
    food web
    body size

    Cite this

    Kopf, R. Keller ; Humphries, Paul ; Bond, Nick R. ; Sims, Neil C. ; Watts, Robyn J. ; Thompson, Ross M. ; Hladyz, Sally ; Koehn, John D. ; King, Alison J. ; McCasker, Nicole ; McDonald, Simon. / Macroecology of fish community biomass – size structure : Effects of invasive species and river regulation. In: Canadian Journal of Fisheries and Aquatic Sciences. 2019 ; Vol. 76, No. 1. pp. 109-122.
    @article{93bc1a3961ef4436b1d4d6be19118fd7,
    title = "Macroecology of fish community biomass – size structure: Effects of invasive species and river regulation",
    abstract = "The biomass of organisms of different sizes is increasingly being used to explore macroscale variation in food-web and community structure. Here we examine how invasive species and river flow regulation affect native fish biomass and fish community log10 biomass – body mass scaling relationships in Australia’s largest river system, the Murray–Darling. The log10 biomass – body mass scaling exponent (scaling B) of invasive fishes (95{\%} CI: −0.14 to −0.18) was less negative than for native fishes (95{\%} CI: −0.20 to −0.25), meaning that invasive species attained a higher biomass in larger size-classes compared to native species. Flow alteration and invasive common carp (Cyprinus carpio) biomass were correlated with severe reductions in native fish biomass ranging from −47{\%} to −68{\%} (95{\%} CI). Our study provides novel evidence suggesting that invasive and native communities have different biomass – body mass scaling patterns, which likely depend on differences in their trophic ecology and body size distributions. Our results suggest that restoration efforts using environmental flows and common carp control has potential to boost native fish biomass to more than double the current level.",
    author = "Kopf, {R. Keller} and Paul Humphries and Bond, {Nick R.} and Sims, {Neil C.} and Watts, {Robyn J.} and Thompson, {Ross M.} and Sally Hladyz and Koehn, {John D.} and King, {Alison J.} and Nicole McCasker and Simon McDonald",
    year = "2019",
    month = "1",
    day = "1",
    doi = "10.1139/cjfas-2017-0544",
    language = "English",
    volume = "76",
    pages = "109--122",
    journal = "Canadian Journal of Fisheries and Aquatic Sciences",
    issn = "0706-652X",
    publisher = "NRC Research Press",
    number = "1",

    }

    Kopf, RK, Humphries, P, Bond, NR, Sims, NC, Watts, RJ, Thompson, RM, Hladyz, S, Koehn, JD, King, AJ, McCasker, N & McDonald, S 2019, 'Macroecology of fish community biomass – size structure: Effects of invasive species and river regulation', Canadian Journal of Fisheries and Aquatic Sciences, vol. 76, no. 1, pp. 109-122. https://doi.org/10.1139/cjfas-2017-0544

    Macroecology of fish community biomass – size structure : Effects of invasive species and river regulation. / Kopf, R. Keller; Humphries, Paul; Bond, Nick R.; Sims, Neil C.; Watts, Robyn J.; Thompson, Ross M.; Hladyz, Sally; Koehn, John D.; King, Alison J.; McCasker, Nicole; McDonald, Simon.

    In: Canadian Journal of Fisheries and Aquatic Sciences, Vol. 76, No. 1, 01.01.2019, p. 109-122.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - Macroecology of fish community biomass – size structure

    T2 - Effects of invasive species and river regulation

    AU - Kopf, R. Keller

    AU - Humphries, Paul

    AU - Bond, Nick R.

    AU - Sims, Neil C.

    AU - Watts, Robyn J.

    AU - Thompson, Ross M.

    AU - Hladyz, Sally

    AU - Koehn, John D.

    AU - King, Alison J.

    AU - McCasker, Nicole

    AU - McDonald, Simon

    PY - 2019/1/1

    Y1 - 2019/1/1

    N2 - The biomass of organisms of different sizes is increasingly being used to explore macroscale variation in food-web and community structure. Here we examine how invasive species and river flow regulation affect native fish biomass and fish community log10 biomass – body mass scaling relationships in Australia’s largest river system, the Murray–Darling. The log10 biomass – body mass scaling exponent (scaling B) of invasive fishes (95% CI: −0.14 to −0.18) was less negative than for native fishes (95% CI: −0.20 to −0.25), meaning that invasive species attained a higher biomass in larger size-classes compared to native species. Flow alteration and invasive common carp (Cyprinus carpio) biomass were correlated with severe reductions in native fish biomass ranging from −47% to −68% (95% CI). Our study provides novel evidence suggesting that invasive and native communities have different biomass – body mass scaling patterns, which likely depend on differences in their trophic ecology and body size distributions. Our results suggest that restoration efforts using environmental flows and common carp control has potential to boost native fish biomass to more than double the current level.

    AB - The biomass of organisms of different sizes is increasingly being used to explore macroscale variation in food-web and community structure. Here we examine how invasive species and river flow regulation affect native fish biomass and fish community log10 biomass – body mass scaling relationships in Australia’s largest river system, the Murray–Darling. The log10 biomass – body mass scaling exponent (scaling B) of invasive fishes (95% CI: −0.14 to −0.18) was less negative than for native fishes (95% CI: −0.20 to −0.25), meaning that invasive species attained a higher biomass in larger size-classes compared to native species. Flow alteration and invasive common carp (Cyprinus carpio) biomass were correlated with severe reductions in native fish biomass ranging from −47% to −68% (95% CI). Our study provides novel evidence suggesting that invasive and native communities have different biomass – body mass scaling patterns, which likely depend on differences in their trophic ecology and body size distributions. Our results suggest that restoration efforts using environmental flows and common carp control has potential to boost native fish biomass to more than double the current level.

    UR - http://www.scopus.com/inward/record.url?scp=85059621210&partnerID=8YFLogxK

    U2 - 10.1139/cjfas-2017-0544

    DO - 10.1139/cjfas-2017-0544

    M3 - Article

    VL - 76

    SP - 109

    EP - 122

    JO - Canadian Journal of Fisheries and Aquatic Sciences

    JF - Canadian Journal of Fisheries and Aquatic Sciences

    SN - 0706-652X

    IS - 1

    ER -