Rapid Global Expansion of Invertebrate Fisheries: Trends, Drivers, and Ecosystem Effects
2011

Global Expansion of Invertebrate Fisheries

publication 10 minutes Evidence: moderate

Author Information

Author(s): Sean C. Anderson, Joanna Mills Flemming, Reg Watson, Heike K. Lotze

Primary Institution: Dalhousie University

Hypothesis

What are the trends, drivers, and ecosystem effects of invertebrate fisheries globally?

Conclusion

Invertebrate species are increasingly exploited with limited assessments, necessitating better management to protect ocean ecosystems and human well-being.

Supporting Evidence

  • Global invertebrate catches have increased 6-fold since 1950.
  • 34% of invertebrate fisheries were over-exploited, collapsed, or closed by 2004.
  • 71% of taxa are harvested with habitat-destructive gear.

Takeaway

People are catching more and more invertebrates like shrimp and crabs, but we need to be careful because we don't know enough about how this affects the ocean.

Methodology

The study analyzed global catch data and developed new methods to assess trends in invertebrate fisheries.

Potential Biases

The reliance on catch data may not accurately reflect the true status of invertebrate populations.

Limitations

Many invertebrate fisheries are not assessed or monitored, leading to gaps in data and understanding.

Statistical Information

P-Value

p=0.002

Confidence Interval

95% confidence interval

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0014735

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