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Life histories determine divergent population trends for fishes under climate warming

Author

Listed:
  • Hui-Yu Wang

    (National Taiwan University)

  • Sheng-Feng Shen

    (Academia Sinica)

  • Ying-Shiuan Chen

    (National Taiwan University)

  • Yun-Kae Kiang

    (National Taiwan University)

  • Mikko Heino

    (University of Bergen
    Institute of Marine Research
    International Institute for Applied Systems Analysis)

Abstract

Most marine fish species express life-history changes across temperature gradients, such as faster growth, earlier maturation, and higher mortality at higher temperature. However, such climate-driven effects on life histories and population dynamics remain unassessed for most fishes. For 332 Indo-Pacific fishes, we show positive effects of temperature on body growth (but with decreasing asymptotic length), reproductive rates (including earlier age-at-maturation), and natural mortality for all species, with the effect strength varying among habitat-related species groups. Reef and demersal fishes are more sensitive to temperature changes than pelagic and bathydemersal fishes. Using a life table, we show that the combined changes of life histories upon increasing temperature tend to facilitate population growth for slow life-history populations, but reduce it for fast life-history ones. Within our data, lower proportions (25–30%) of slow life-history fishes but greater proportions of fast life-history fishes (42–60%) show declined population growth rates under 1 °C warming. Together, these findings suggest prioritizing sustainable management for fast life-history species.

Suggested Citation

  • Hui-Yu Wang & Sheng-Feng Shen & Ying-Shiuan Chen & Yun-Kae Kiang & Mikko Heino, 2020. "Life histories determine divergent population trends for fishes under climate warming," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17937-4
    DOI: 10.1038/s41467-020-17937-4
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    Cited by:

    1. Lara Paige Brodie & Smit Vasquez Caballero & Elena Ojea & Sarah F. W. Taylor & Michael Roberts & Patrick Vianello & Narriman Jiddawi & Shankar Aswani & Juan Bueno, 2024. "A new framework on climate-induced food-security risk for small-scale fishing communities in Tanzania," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 16(5), pages 1125-1145, October.

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