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Improving understanding of the functional diversity of fisheries by exploring the influence of global catch reconstruction

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Nash, KL ORCID: 0000-0003-0976-3197, Watson, RA ORCID: 0000-0001-7201-8865, Halpern, BS, Fulton, EA and Blanchard, JL ORCID: 0000-0003-0532-4824 2017 , 'Improving understanding of the functional diversity of fisheries by exploring the influence of global catch reconstruction' , Scientific Reports, vol. 7 , pp. 1-12 , doi: 10.1038/s41598-017-10723-1.

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Abstract

Functional diversity is thought to enhance ecosystem resilience, driving research focused on trends in the functional composition of fisheries, most recently with new reconstructions of global catch data. However, there is currently little understanding of how accounting for unreported catches (e.g. small-scale and illegal fisheries, bycatch and discards) influences functional diversity trends in global fisheries. We explored how diversity estimates varied among reported and unreported components of catch in 2010, and found these components had distinct functional fingerprints. Incorporating unreported catches had little impact on global-scale functional diversity patterns. However, at smaller, management-relevant scales, the effects of incorporating unreported catches were large (changes in functional diversity of up to 46%). Our results suggest there is greater uncertainty about the risks to ecosystem integrity and resilience from current fishing patterns than previously recognized. We provide recommendations and suggest a research agenda to improve future assessments of functional diversity of global fisheries.

Item Type: Article
Authors/Creators:Nash, KL and Watson, RA and Halpern, BS and Fulton, EA and Blanchard, JL
Keywords: functional diversity, marine ecosystems, global fisheries, database
Journal or Publication Title: Scientific Reports
Publisher: Nature Publishing Group
ISSN: 2045-2322
DOI / ID Number: 10.1038/s41598-017-10723-1
Copyright Information:

Copyright 2017 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

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