. "Natural or artificial materials deployed in a marine or artificial environment for a given period to act as standardised, passive settlement sampling devices (e.g. settlement plates). They are used to determine the extent of colonisation and/or the diversity of settled organisms."@en . "colonisation substrata"@en . "SDN:L05::392" . . "substrates"@en . "substrates" . . "accepted"@en . . . . . . . . . . . . . . . . . .