Sven A. Kranz

An ice-bucket challenge: investigating ice algae physiology in laboratory microcosms.

The paper develops icecosms to study physiological changes and survival of ice-associated algae under varying ice conditions.

The Role of Photoperiod, Light Intensity, and Iron Concentration on Cellular Physiology Photophysiology, and Proteomics in Southern Ocean Phytoplankton.

This study examines how Fe availability, light intensity, and photoperiod affect growth, photosynthesis, and protein expression in Southern Ocean phytoplankton, revealing species-specific strategies for resource allocation.

Comparative food-web analysis of bluefin tuna spawning habitats in the eastern Indian Ocean and Gulf of Mexico

The paper compares food-web structures in tuna spawning habitats of the Gulf of Mexico and Argo Basin, finding higher ecosystem efficiency in the Argo Basin due to differences in zooplankton herbivory and nutrient cycling.

Analysis of environmental data during a lagrangian experiment: The influence of vertical movements.

The paper analyzes environmental data from Lagrangian ocean experiments, showing that density surfaces better capture variability than depth, confirming the Lagrangian nature of the experiments.

Phytoplankton community composition in the oligotrophic Argo Basin of the eastern Indian Ocean

The paper describes phytoplankton community composition in the oligotrophic Argo Basin during austral summer 2022, highlighting taxonomic and functional diversity across different depth layers.

Sinking particle export within and beneath the euphotic zone in the eastern Indian Ocean

The paper quantifies carbon export and sinking particle characteristics in the eastern Indian Ocean, finding net remineralization in the deep euphotic zone and similar patterns to the Gulf of Mexico.

Primary productivity and N2-fixation in the eastern Indian Ocean: bottom-up support for an ecologically and economically important ecosystem

The paper quantifies primary productivity and nitrogen fixation in the eastern Indian Ocean, showing nitrogen recycling and N2 fixation support ecosystem productivity.

Phytoplankton community structure and photophysiological strategies in the oligotrophic Indian Ocean spawning ground of Southern Bluefin Tuna

This study identifies Prochlorococcus as dominant in the oligotrophic Argo Basin, revealing photophysiological strategies that enable survival under nitrate limitation and Fe stress, and shows how mesoscale eddies episodically alter phytoplankton communities.

Microbial food web dynamics in tropical waters of the bluefin tuna spawning region off northwestern Australia

The paper quantifies microbial carbon flows in the spawning region of Southern Bluefin Tuna off NW Australia, showing Prochlorococcus dominates production and grazing in the upper euphotic zone.