Modified on : 14 Feb 2019
![](https://www.institut-paul-ricard.org/wp-content/uploads/2018/09/PH-Cym.nod_-935x500.jpg)
Like their Posidonia equivalents, zostera seagrass beds are key to maintaining balance in the marine environment. They provide shelter for juveniles of many species and are a food source and habitat for the fauna that lives just below the surface.