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Fishing elevates variability in the abundance of exploited species

Abstract

The separation of the effects of environmental variability from the impacts of fishing has been elusive, but is essential for sound fisheries management1,2,3,4,5,6,7. We distinguish environmental effects from fishing effects by comparing the temporal variability of exploited versus unexploited fish stocks living in the same environments. Using the unique suite of 50-year-long larval fish surveys from the California Cooperative Oceanic Fisheries Investigations4 we analyse fishing as a treatment effect in a long-term ecological experiment. Here we present evidence from the marine environment that exploited species exhibit higher temporal variability in abundance than unexploited species. This remains true after accounting for life-history effects, abundance, ecological traits and phylogeny. The increased variability of exploited populations is probably caused by fishery-induced truncation of the age structure, which reduces the capacity of populations to buffer environmental events1,5,8,9. Therefore, to avoid collapse, fisheries must be managed not only to sustain the total viable biomass but also to prevent the significant truncation of age structure1,5,8,9. The double jeopardy of fishing to potentially deplete stock sizes and, more immediately, to amplify the peaks and valleys of population variability7, calls for a precautionary management approach10,11.

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Figure 1: Relationships between coefficients of variation of annual larval abundance and age at maturation for exploited and unexploited species.
Figure 2: Coefficients of variation of annual larval abundance of exploited and unexploited species associated with geographic regions, habitats and spawning modes.
Figure 3: Long-term declining trends in the average age and length of exploited species.

References

  1. Berkeley, S. A., Hixon, M. A., Larson, R. J. & Love, M. S. Fisheries sustainability via protection of age structure and spatial distribution of fish populations. Fisheries 29, 23–32 (2004)

    Article  Google Scholar 

  2. Daan, N., Christensen, V. & Cury, P. M. Quantitative ecosystem indicators for fisheries management. ICES J. Mar. Sci. 62, 307–614 (2005)

    Article  Google Scholar 

  3. Pikitch, E. K. et al. Ecosystem-based fishery management. Science 305, 346–347 (2004)

    CAS  Article  Google Scholar 

  4. Hsieh, C. H. et al. A comparison of long-term trends and variability in populations of larvae of exploited and unexploited fishes in the Southern California region: a community approach. Prog. Oceanogr. 67, 160–185 (2005)

    ADS  Article  Google Scholar 

  5. Hutchings, J. A. & Reynolds, J. D. Marine fish population collapses: consequences for recovery and extinction risk. Bioscience 13, 297–309 (2004)

    Article  Google Scholar 

  6. Garcia, S. M., Zerbi, A., Aliaume, C., Do Chi, T. & Lasserre, G. The ecosystem approach to fisheries. Issues, terminology, principles, institutional foundations, implementation and outlook. FAO Fish. Tech. Pap. 443, 1–71 (2003)

    Google Scholar 

  7. Beddington, J. R. & May, R. M. Harvesting natural populations in a randomly fluctuating environment. Science 197, 463–465 (1977)

    ADS  CAS  Article  Google Scholar 

  8. Murawski, S. A., Rago, P. J. & Trippel, E. A. Impacts of demographic variation in spawning characteristics on reference points for fishery management. ICES J. Mar. Sci. 58, 1002–1014 (2001)

    Article  Google Scholar 

  9. Murphy, G. I. Vital statistics of the Pacific sardine (Sardinops Caerulea) and the population consequences. Ecology 48, 731–736 (1967)

    Article  Google Scholar 

  10. Hsieh, C. H., Glaser, S. M., Lucas, A. J. & Sugihara, G. Distinguishing random environmental fluctuations from ecological catastrophes for the North Pacific Ocean. Nature 435, 336–340 (2005)

    ADS  CAS  Article  Google Scholar 

  11. Scheffer, M., Carpenter, S., Foley, J. A., Folkes, C. & Walker, B. Catastrophic shifts in ecosystems. Nature 413, 591–596 (2001)

    ADS  CAS  Article  Google Scholar 

  12. Food and Agriculture Organization of the United Nations. (FAO). Review of the State of World Marine Fishery Resources (FAO, Rome, 2005)

  13. Myers, R. A. & Worm, B. Rapid worldwide depletion of predatory fish communities. Nature 423, 280–283 (2003)

    ADS  CAS  Article  Google Scholar 

  14. Hutchings, J. A. Collapse and recovery of marine fishes. Nature 406, 882–885 (2000)

    ADS  CAS  Article  Google Scholar 

  15. Beaugrand, G., Brander, K. M., Lindley, J. A., Souissi, S. & Reid, P. C. Plankton effect on cod recruitment in the North Sea. Nature 426, 661–664 (2003)

    ADS  CAS  Article  Google Scholar 

  16. Finney, B. P., Gregory-Eaves, I., Douglas, M. S. V. & Smol, J. P. Fisheries productivity in the northeastern Pacific Ocean over the past 2,200 years. Nature 416, 729–733 (2002)

    ADS  CAS  Article  Google Scholar 

  17. Mantua, N. J., Hare, S. R., Zhang, Y., Wallace, J. M. & Francis, R. C. A Pacific interdecadal climate oscillation with impacts on salmon production. Bull. Am. Meteorol. Soc. 78, 1069–1079 (1997)

    ADS  Article  Google Scholar 

  18. May, R., Beddington, J. R., Horwood, J. W. & Shepherd, J. G. Exploiting natural populations in an uncertain world. Math. Biosci. 42, 219–252 (1978)

    MathSciNet  Article  Google Scholar 

  19. Hilborn, R., Maquire, J., Parma, A. M. & Rosenberg, A. A. The precautionary approach and risk management: can they increase the probability of successes in fishery management?. Can. J. Fish. Aquat. Sci. 58, 99–107 (2001)

    Article  Google Scholar 

  20. Pimm, S. L. The Balance of Nature? Ecological Issues in the Conservation of Species and Communities 39–58 (University of Chicago, Chicago, 1991)

  21. Ludwig, D., Hilborn, R. & Waters, C. Uncertainty, resource exploitation, and conservation: lessons from history. Science 260, 17, 36 (1993)

    ADS  CAS  Article  Google Scholar 

  22. Winemiller, K. O. & Rose, K. A. Patterns of life-history diversification in North American fishes: implications for population regulation. Can. J. Fish. Aquat. Sci. 49, 2196–2218 (1992)

    Article  Google Scholar 

  23. Mertz, G. & Myers, R. A. Match/mismatch predictions of spawning duration versus recruitment variability. Fish. Oceanogr. 3, 1–14 (1994)

    Article  Google Scholar 

  24. Mertz, G. & Myers, R. A. Influence of fecundity on recruitment variability of marine fish. Can. J. Fish. Aquat. Sci. 53, 1618–1625 (1996)

    Article  Google Scholar 

  25. Hutchings, J. & Baum, J. Measuring marine fishes biodiversity: temporal changes in abundance, life history and demography. Phil. Trans. R. Soc. Lond. B 360, 315–338 (2005)

    Article  Google Scholar 

  26. Hutchings, J. A. & Myers, R. A. Effect of age on the seasonality of maturation and spawning of Atlantic cod, Gadus morhua, in the northwest Atlantic. Can. J. Fish. Aquat. Sci. 50, 2468–2474 (1993)

    Article  Google Scholar 

  27. Lambert, T. C. Duration and intensity of spawning in herring Clupea harengus as related to the age structure of the population. Mar. Ecol. Prog. Ser. 39, 209–220 (1987)

    ADS  Article  Google Scholar 

  28. Marteinsdottir, G. & Steinarsson, A. Maternal influence on the size and viability of Iceland cod (Gadus morhua) eggs and larvae. J. Fish Biol. 52, 1241–1258 (1998)

    Google Scholar 

  29. Shepherd, J. G. & Cushing, D. H. Regulation in fish populations: myth or mirage?. Phil. Trans. R. Soc. Lond. B 330, 151–164 (1990)

    ADS  Article  Google Scholar 

  30. Little, R. J. A. & Rubin, D. B. Statistical Analysis with Missing Data 164–220 (John Wiley & Sons, New York, 2002)

Download references

Acknowledgements

We thank the CalCOFI for the use of the data. R. Hewitt, D. Checkley, M. Ohman, S. Sandin, M. Maunder, P. Hastings, K. Roy, D. Lucas and S. Glaser provided discussion and comments on this work. A. MacCall, K. Hill, D. Sampson, I. Stewart, J. Cope, D. Aseltin-Nelson and J. Mason provided fisheries-related data. B. Macewicz, N. Lo, B. Watson and S. Suyama provided data and comments on life-history traits of fishes. Our study was funded by NOAA Fisheries and the Environment (FATE), the National Marine Fisheries Service, NSF/LTER CCE ‘Nonlinear Transitions in the California Current Coastal Pelagic Ecosystem’, the Center for Marine Bioscience and Biotechnology, National Taiwan Oceanic University, the Deutsche Bank Complexity Studies Fund and the Sugihara Family Trust. Author Contributions C.H. and G.S. conceived the original study. C.H. is responsible for the statistical analyses and uncovering the main result. All co-authors contributed to refining the analysis, framing and interpreting the result, and to its final exposition.

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Correspondence to George Sugihara.

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Hsieh, Ch., Reiss, C., Hunter, J. et al. Fishing elevates variability in the abundance of exploited species. Nature 443, 859–862 (2006). https://doi.org/10.1038/nature05232

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