Global change in the functional diversity of marine fisheries exploitation over the past 65 years
- 19 August 2020
- journal article
- research article
- Published by The Royal Society in Proceedings. Biological sciences
- Vol. 287 (1933), 20200889
- https://doi.org/10.1098/rspb.2020.0889
Abstract
Overexploitation is recognized as one of the main threats to global biodiversity. Here, we report a widespread change in the functional diversity of fisheries catches from the large marine ecosystems (LMEs) of the world over the past 65 years (1950 to 2014). The spatial and temporal trends of functional diversity exploited from the LMEs were calculated using global reconstructed marine fisheries catch data provided by the Sea Around Us initiative (including subsistence, artisanal, recreational, industrial fisheries, and discards) and functional trait data available in FishBase. Our analyses uncovered a substantial increase in the functional richness of both ray-finned fishes (80% of LMEs) and cartilaginous species (sharks and rays) (75% of LMESs), in line with an increase in the taxonomic richness, extracted from these ecosystems. The functional evenness and functional divergence of these catches have also altered substantially over the time span of this study, with considerable geographic variation in the patterns detected. These trends show that global fisheries are increasingly targeting species that play diverse roles within the marine ecosystem and underline the importance of incorporating functional diversity in ecosystem management.Funding Information
- Leverhulme Trust (RPG-2019-402)
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (#88881.129579/2016-01 (Finance Code 001))
- H2020 European Research Council (ERCAdG BioTIME 250189, ERCPoC BioCHANGE 727440)
This publication has 50 references indexed in Scilit:
- A functional approach reveals community responses to disturbancesTrends in Ecology & Evolution, 2013
- Effects of Fishing and Regional Species Pool on the Functional Diversity of Fish CommunitiesPLOS ONE, 2012
- Functional Structure of Biological Communities Predicts Ecosystem MultifunctionalityPLOS ONE, 2011
- The Spatial Expansion and Ecological Footprint of Fisheries (1950 to Present)PLOS ONE, 2010
- Functional diversity responses to changing species richness in reef fish communitiesMarine Ecology Progress Series, 2008
- A Global Map of Human Impact on Marine EcosystemsScience, 2008
- Let the concept of trait be functional!Oikos, 2007
- Rapid worldwide depletion of predatory fish communitiesNature, 2003
- Managing to the margins: the overexploitation of fisheriesFrontiers in Ecology and the Environment, 2003
- Fishing Down Marine Food WebsScience, 1998