Predicting potential Arctic kelp distribution and lower-depth biomass from seafloor irradiance

This paper develops a framework for estimating potential Arctic kelp distribution and lower-depth biomass from seafloor irradiance. Using fjord-specific empirical relationships, it links standing stock estimates to light availability and its drivers, providing a baseline for tracking how changing coastal light environments may alter Arctic kelp biomass under ongoing environmental change.

Summer primary production of Arctic kelp communities is more affected by duration than magnitude of simulated marine heatwaves

This study examines how mixed Arctic kelp communities respond to simulated marine heatwaves that vary in duration and magnitude. A mesocosm experiment showed that prolonged heatwave exposure reduced accumulated net community production more strongly than shorter, more intense events, highlighting the importance of duration when assessing marine heatwave impacts on fjord kelp ecosystems.

Productivity of mixed kelp communities in an Arctic fjord exhibit tolerance to a future climate

This study evaluates how mixed kelp communities in an Arctic fjord respond to combined future stressors associated with climate change, including warming, freshening, and reduced light. Using a two-month mesocosm experiment, it shows that summer net productivity remains comparatively tolerant across treatment conditions, while light availability exerts the strongest control on net community production.