DIN EN 17211:2017-12

This document provides guidance for survey design, equipment specification, survey methods, sampling and data handling, of macroalgae and marine angiosperms such as Zostera in the intertidal soft bottom environment. It does not include polyeuryhaline terrestrial angiosperms that are found in saltmarshes. Ruppia is a genus of angiosperms that can be found in brackish water. This standard can also be applied to the study of Ruppia in these environments.