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

Citation

Nash, KL and Watson, RA and Halpern, BS and Fulton, EA and Blanchard, JL, Improving understanding of the functional diversity of fisheries by exploring the influence of global catch reconstruction, Scientific Reports, 7 Article 10746. ISSN 2045-2322 (2017) [Refereed Article]


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Copyright Statement

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

DOI: doi:10.1038/s41598-017-10723-1

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 Details

Item Type:Refereed Article
Keywords:functional diversity, marine ecosystems, global fisheries, database
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquatic Ecosystem Studies and Stock Assessment
Objective Division:Environment
Objective Group:Climate and Climate Change
Objective Field:Social Impacts of Climate Change and Variability
UTAS Author:Nash, KL (Dr Kirsty Nash)
UTAS Author:Watson, RA (Professor Reginald Watson)
UTAS Author:Fulton, EA (Dr Elizabeth Fulton)
UTAS Author:Blanchard, JL (Dr Julia Blanchard)
ID Code:121018
Year Published:2017
Funding Support:Australian Research Council (DP140101377)
Deposited By:Fisheries and Aquaculture
Deposited On:2017-09-06
Last Modified:2018-03-22
Downloads:36 View Download Statistics

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