Ideas and perspectives: The fluctuating nature of oxygen shapes the ecology of aquatic habitats and their biogeochemical cycles – the aquatic oxyscape

Marco Fusi, Sylvain Rigaud, Giovanna Guadagnin, Alberto Barausse, Ramona Marasco, Daniele Daffonchio, Julie Régis, Louison Huchet, Capucine Camin, Laura Pettit, Cristina Vina-Herbon, Folco Giomi

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Oxygen availability is a pivotal factor for ecosystem functioning and the resistance of organisms to the effect of climate change in aquatic habitats. Although extensive work has been done to assess the effect of oxygen on marine and freshwater biota, many studies have not captured the ecological importance of oxygen variations. Overlooking the fluctuating nature of oxygen may cause potential biases in the design and implementation of management policies for aquatic habitats. Conceptual perspectives on the dynamic nature of oxygen fluctuations have been raised in the scientific community in order to enhance the understanding of the effect of oxygen on the physiology and the ecology of aquatic species as well as the biogeochemical functioning of their ecosystems. A growing number of empirical work has been outlining a novel conceptual framework that considers the magnitude of oxygen fluctuation as a key variable that explains adaptation to stress conditions. Oxygen in productive aquatic habitats shows large fluctuations at the diel scale, exposing aquatic species to conditions ranging from extreme supersaturation to anoxia. Recent research has indicated that such a fluctuation tunes the physiological plasticity of the animal in response to thermal stresses. In this paper, we provide compelling evidence based on current research that the fluctuating oxygen landscape, here defined as “oxyscape”, has an important role in aquatic animal physiology and adaptation as well as the ecosystem biogeochemistry. We propose that the oxyscape should be considered in the modelling and managing policies of aquatic ecosystems.
Original languageEnglish (US)
Pages (from-to)3509-3521
Number of pages13
JournalBiogeosciences
Volume20
Issue number16
DOIs
StatePublished - Aug 23 2023

Bibliographical note

KAUST Repository Item: Exported on 2023-09-06
Acknowledged KAUST grant number(s): CRG-7-3739, REI/1/4483-01-01
Acknowledgements: This research has been supported by the King Abdullah University of Science and Technology (grant nos. REI/1/4483-01-01 and CRG-7-3739). Daniele Daffonchio was financially supported by the King Abdullah University of Science and Technology (KAUST) through the Circular Carbon Economy initiative (grant no. REI/1/4483-01-01). Daniele Daffonchio was also supported by a Competitive Research Grant for “the role of the bacterial symbiome at the gill–water (air) interface in the evolution toward territorialisation (microlanding)” (no. CRG-7-3739; 1 April 2019 to 31 March 2022). We are very grateful to the LabEx DRIIHM French programme Investissements d'Avenir (ANR-11-LABX-0010), which is managed by the French ANR, under the Human-Environment Observatory Mediterranean coast (OHM Littoral Meíditerraneíen), for its funding that allowed us to collect data from the Prevost lagoon. We also thank the Excellence Initiative of Aix-Marseille University – A*MIDEX, a French Investissements d'Avenir programme (reference number ANR-11-IDEX-0001-02); the PACA region and the CNRS-INSU-EC2CO programme (PREDHYP-O2 programme) for its funding that allowed us to collect data from the Berre lagoon; and the Occitanie region and the University of Nîmes for the funding of Julie Reígis' PhD thesis. We also thank all the members who allowed us to collect data from the coastal Mediterranean lagoons in France (syndicat mixte GIPREB, Mairie de Chateauneuf-les-Martigues, Compagnons de Maguelone). The PREDHYPO programme has received funding from the Excellence Initiative of Aix-Marseille University – A*MIDEX, a French Investissements d'Avenir programme (reference number ANR-11-IDEX-0001-02), the PACA region, and the CNRS-INSU-EC2CO programme (PREDHYP-O2 programme).

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Earth-Surface Processes

Fingerprint

Dive into the research topics of 'Ideas and perspectives: The fluctuating nature of oxygen shapes the ecology of aquatic habitats and their biogeochemical cycles – the aquatic oxyscape'. Together they form a unique fingerprint.

Cite this