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Lookup NU author(s): Dr Marco FusiORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
The decline of dissolved oxygen in the oceans could be detrimental to marine life and biogeochemical cycles. However, predicting future oxygen availability with models that mainly focus on temporal and spatial large-scale mean values could lead to incorrect predictions. Marine ecosystems are strongly influenced by short temporal- and small spatial-scale oxygen fluctuations. Large-scale modelling neglects fluctuations, which include the pervasive occurrence of high oxygen supersaturation on a daily time scale in productive ecosystems such as coral reefs, seagrass meadows and mangrove forests and the spatial heterogeneity in oxygen availability at microclimatic scales. In these temporal and spatial micro-environments, oxygen fluctuations control biogeochemical cycles and alter community responses to, for example, heat stress and hypoxia. Robust projections on the impact of predicted ocean and coastal deoxygenation require a better understanding of the dynamics of the dissolved oxygen coupled with scaled-down projections of oxygen fluctuations at small relevant scales for marine biogeochemical processes and communities. Overall, the study of the true oxygen dynamics in marine productive habitats can provide crucial insights into the feedback mechanisms between climate change and marine ecosystems and can help to develop effective management and conservation strategies.
Author(s): Giomi F, Barausse A, Steckbauer A, Daffonchio D, Duarte CM, Fusi M
Publication type: Article
Publication status: Published
Journal: Nature Geoscience
Year: 2023
Volume: 16
Pages: 560-566
Print publication date: 03/07/2023
Online publication date: 03/07/2023
Acceptance date: 26/05/2023
Date deposited: 18/10/2024
ISSN (print): 1752-0894
ISSN (electronic): 1752-0908
Publisher: Nature Publishing Group
URL: https://doi.org/10.1038/s41561-023-01217-z
DOI: 10.1038/s41561-023-01217-z
ePrints DOI: 10.57711/2s15-b176
Data Access Statement: Data from the Red Sea were retrieved from Giomi et al. Data from Venice Lagoon are available from the hydrobiological station Umberto D’Ancona at Chioggia, Italy (https://chioggia.biologia.unipd.it/en/the-database/parameters-of-lagoon/2017/ and https://chioggia.biologia.unipd.it/en/the-database/parameters-of-lagoon/2018/). Data from the Balearic Islands were retrieved from ref. 49. All of the data have been collated and are available as Supplementary Data.
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