Mangroves and salt marshes are among the most productive ecosystems in the global
coastal ocean. Mangroves store more carbon (739 Mg CORG ha− 1) than salt marshes (334 …

Aquatic eddy covariance (AEC) is increasingly being used to study benthic oxygen (O2) flux
dynamics, organic carbon cycling, and ecosystem health in marine and freshwater …

Coastal ecosystems can efficiently remove carbon dioxide (CO2) from the atmosphere and
are thus promoted for nature-based climate change mitigation. Natural methane (CH4) …

Global seaweed carbon sequestration estimates are currently taken as the fraction of the net
primary production (NPP) exported to the deep ocean. However, this perspective does not …

Net primary productivity (NPP) plays a pivotal role in the global carbon balance but
estimating the NPP of underwater habitats remains a challenging task. Seaweeds (marine …

Recently, Gallagher et al. suggested that seaweed ecosystems are net heterotrophic carbon
sources due to CO2 released from the consumption of external subsidies. Here we outline …

Coastal methane (CH4) emissions dominate the global ocean CH4 budget and can offset
the “blue carbon” storage capacity of vegetated coastal ecosystems. However, current …

Wetlands cover a small portion of the world, but have disproportionate influence on global
carbon (C) sequestration, carbon dioxide and methane emissions, and aquatic C fluxes …

Macroalgal forests export much of their production, partly supporting food webs and carbon
stocks beyond their habitat, but evidence of their contribution in sediment carbon stocks is …

Phytoplankton and sea ice algae are traditionally considered to be the main primary
producers in the Arctic Ocean. In this Perspective, we explore the importance of benthic …