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Monitoring extinction risk and threats of the world’s fishes based on the Sampled Red List Index

Miranda, Rafael; Miqueleiz, Imanol; Darwall, William; Sayer, Catherine; Dulvy, Nicholas K; Carpenter, Kent E; Polidoro, Beth; ... Böhm, Monika; + view all (2022) Monitoring extinction risk and threats of the world’s fishes based on the Sampled Red List Index. Reviews in Fish Biology and Fisheries 10.1007/s11160-022-09710-1. (In press). Green open access

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Abstract

Global biodiversitytargets require us to identify species at risk of extinction and quantify status and trends of biodiversity. The Red List Index (RLI) tracks trends in the conservation status of entire species groups over time by monitoring changes in categories assigned to species. Here, we calculate this index for the world’s fishes in 2010, using a sampled approach to the RLI based on a randomly selected sample of 1,500 species, and also present RLI splits for freshwater and marine systems separately. We further compare specific traits of a worldwide fish list to our sample to assess its representativeness. Overall, 15.1% of species in the sample were estimated to be threatened with extinction, resulting in a sampled RLI of 0.914 for all species, 0.968 in marine and 0.862 in freshwater ecosystems. Our sample showed fishing as the principal threat for marine species, and pollution by agricultural and forestry effluents for freshwater fishes. The sampled list provides a robust representation for tracking trends in the conservation status of the world’s fishes, including disaggregated sampled indices for marine and freshwater fish. Reassessment and backcasting of this index is urgent to check the achievement of the commitments proposed in global biodiversity targets.

Type: Article
Title: Monitoring extinction risk and threats of the world’s fishes based on the Sampled Red List Index
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/s11160-022-09710-1
Publisher version: https://doi.org/10.1007/s11160-022-09710-1
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Biodiversity loss, Conservation status, Fishes, Global assessment, IUCN Red List, Threatened species
UCL classification: UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Genetics, Evolution and Environment
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
URI: https://discovery.ucl.ac.uk/id/eprint/10146168
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