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.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Nash KL,Watson RA,Halpern BS,Fulton EA,Blanchard JLdoi
10.1038/s41598-017-10723-1subject
Has Abstractpub_date
2017-09-06 00:00:00pages
10746issue
1issn
2045-2322pii
10.1038/s41598-017-10723-1journal_volume
7pub_type
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