Abstract
Shallow benthic habitats are hotspots for carbon cycling and energy flow, but metabolism (primary production and respiration) dynamics and habitat-specific differences remain poorly understood. We investigated daily, seasonal, and annual metabolism in six key benthic habitats in the Baltic Sea using ~ 2900 h of in situ aquatic eddy covariance oxygen flux measurements. Rocky substrates had the highest metabolism rates. Habitat-specific annual primary production per m 2 was in the order Fucus vesiculosus canopy > Mytilus trossulus reef > Zostera marina canopy > mixed macrophytes canopy > sands, whereas respiration was in the order M. trossulus > F. vesiculosus > Z. marina > mixed macrophytes > sands > aphotic sediments. Winter metabolism contributed 22–31% of annual rates. Spatial upscaling revealed that benthic habitats drive > 90% of ecosystem metabolism in waters ≤5 m depth, highlighting their central role in carbon and nutrient cycling in shallow waters.
Original language | English |
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Journal | Limnology and Oceanography Letters |
Volume | 4 |
Issue number | 3 |
Pages (from-to) | 79-86 |
Number of pages | 8 |
ISSN | 2378-2242 |
DOIs | |
Publication status | Published - 16. Jun 2019 |
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Data from: Seasonal ecosystem metabolism across shallow benthic habitats measured by aquatic eddy covariance
Attard, K. M. (Creator), Rodil, I. F. (Creator), Glud, R. N. (Creator), Berg, P. (Creator), Norkko, J. (Creator) & Norkko, A. (Creator), Dryad Digital Repository, 11. Apr 2019
DOI: https://doi.org/10.5061/dryad.p0g4t96
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