Trait modeling to predict benthic functions and vulnerabilities across black sea seascapes
Séverine Chevalier1,2, Olivier Beauchard3, Luc Vandenbulcke4
1Modelling for Aquatic Systems (MAST) - Research Unit FOCUS, University of Liège, Liège, Belgium. severine.chevalier@uliege.be.
Mapping benthic functions and vulnerabilities in the Black Sea reveals oxygen availability as a key driver. This research aids in protecting marine biodiversity and ecosystem services under climate change.
Area of Science:
- Marine Ecology
- Benthic Ecology
- Biogeochemistry
Background:
- Benthic biodiversity is crucial for ecosystem services and biogeochemical cycles.
- Lack of spatial data on benthic functions and vulnerabilities hinders protection efforts against human impacts and climate change.
Purpose of the Study:
- To bridge in situ benthic data with spatial maps of macrobenthic functions and vulnerabilities.
- To investigate the drivers of benthic community composition and ecosystem functions in the Black Sea.
Main Methods:
- A multidisciplinary approach integrating in situ benthic data.
- Spatial mapping of macrobenthic functions and vulnerabilities.
- Analysis of oxygen availability as a key environmental driver.
Main Results:
- Oxygen availability was identified as a primary driver of macrobenthic functional traits.
- Well-oxygenated areas exhibited high biomixing, bioirrigation, and biodeposition.
- Depleted oxygen zones showed functionally impoverished communities with negligible ecosystem impact.
Conclusions:
- Mapping benthic functions and vulnerabilities is essential for effective marine management.
- Findings support the United Nations Sustainable Development Goal 14: Life Below Water.
- Understanding oxygen's role is critical for conserving benthic biodiversity and ecosystem services.
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