3D ocean assessments reveal that fisheries reach deep but marine protection remains shallow

Juliette Jacquemont (), Charles Loiseau, Luke Tornabene and Joachim Claudet ()
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Juliette Jacquemont: University of Washington
Charles Loiseau: 195 rue Saint-Jacques
Luke Tornabene: University of Washington
Joachim Claudet: 195 rue Saint-Jacques

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract The wave of new global conservation targets, the conclusion of the High Seas Treaty negotiations, and the expansion of extractive use into the deep sea call for a paradigm shift in ocean conservation. The current reductionist 2D representation of the ocean to set targets and measure impacts will fail at achieving effective biodiversity conservation. Here, we develop a framework that overlays depth realms onto marine ecoregions to conduct the first three-dimensional spatial analysis of global marine conservation achievements and fisheries footprint. Our novel approach reveals conservation gaps of mesophotic, rariphotic, and abyssal depths and an underrepresentation of high protection levels across all depths. In contrast, the 3D footprint of fisheries covers all depths, with benthic fishing occurring down to the lower bathyal and mesopelagic fishing peaking in areas overlying abyssal depths. Additionally, conservation efforts are biased towards areas where the lowest fishing pressures occur, compromising the effectiveness of the marine conservation network. These spatial mismatches emphasize the need to shift towards 3D thinking to achieve ocean sustainability.

Date: 2024
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DOI: 10.1038/s41467-024-47975-1

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