Early Career Postdoc: Seagrass nursery-plant ecophysiology and biogeochemistry for ecosystem restoration

The Department of Coastal Systems (COS) at the[Royal Netherlands Institute for Sea Research](https://www.nioz.nl/en) (NIOZ-Texel) is looking for a highly motivated early career postdoctoral researcher to help develop a pilot-scale seagrass nursery that will support long-term, large-scale ecosystem restoration. We are looking for an experimental scientist with a background in aquatic or marine plant physiology, ecophysiology, biogeochemistry, or a related field, who is excited to apply fundamental knowledge of plant functioning to a major challenge in coastal ecosystem restoration.

THE DEPARTMENT

The Department of COS studies integral coastal ecosystems and their populations of fish, birds, and other marine animals in the North and Wadden Seas as well as on a global scale. The department focusses on key physical, chemical and biological processes that determine the productivity and the ecological functioning of coastal areas. The coastal system is studied as a unity by considering the interrelations between the key compartments of the ecosystem (water, sediment, microalgae, macrozoobenthos, parasites, fish and birds). The welcoming atmosphere at NIOZ will provide ample opportunity for collaborations.

THE PROJECT

Seagrass meadows are important coastal ecosystems but have largely disappeared from the Dutch Wadden Sea. Active restoration is now producing promising results, yet further upscaling is constrained by the availability of seeds and plants from natural donor populations. To overcome this bottleneck, NIOZ and partners are developing a pilot-scale seagrass nursery in Lauwersoog.

Building on successful cultivation experiments and pilot trials, the project will develop a 160-m² nursery producing seeds and plants of _Zostera marina_ and _Nanozostera noltei_ for restoration in the Wadden Sea. A key challenge is to optimize the biological cultivation process by understanding and controlling the environmental conditions that determine plant growth and reproduction. The project thereby connects fundamental plant ecophysiology and biogeochemistry directly to large-scale ecosystem restoration.

THE POSITION

You will take a leading scientific role in developing and optimizing seagrass cultivation in the pilot nursery. Through experiments ranging from aquaria to large outdoor cultivation units, you will unravel how nutrient availability, inorganic carbon, light and environmental cues affect seagrass growth and reproduction, and how these factors can be manipulated to optimize cultivation.

In your work, you will combine hypothesis-driven experimental research with hands-on development and optimization of a new seagrass cultivation system. You will work closely with NIOZ researchers, technical staff and external project partners, and translate your findings into practical cultivation protocols for producing seagrass restoration material at scale.