European Directory of Marine Environmental Data (EDMED)

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Data set name

Netherlands National Monitoring of Vegetation in the Eastern Wadden Sea Region (1960 -)

Data holding centreRijkswaterstaat Centrale Informatievoorziening
CountryNetherlands  Netherlands
ProjectNational Biological Monitoring Programme(MON*BIOLOGIE)
Time period1960 - present
Geographical area

Eastern Wadden Sea. The boundary between Western Wadden Sea and Eastern Wadden Sea is situated between the islands Terschelling and Ameland. The boundary between Eastern Wadden Sea and the Ems-Dollard estuary lies West from the Huibertsgat.


Macroalgae and seagrass taxonomy-related counts; Land vegetation




MON*BIO is a part of the Monitoring programme of the National Water Systems (in Dutch : Monitoring Waterstaatkundige Toestand des Lands; MWTL) The primary goal of the MWTL programme is to provide physical, chemical and biological information in relation to long term developments. So the focal point for the monitoring programme is based on trend detection. Another aim is to check the compliance to national and international assessment criteria. The Dutch marine and brackish waters are dived into areas. In field GEOGRAPHIC COVERAGE the area is mentioned. This part of the MON*BIO programme describes two vegetation programmes: - sea grass - salt marsh covered with higher plants. The starting date mentioned is not necessarily the same for every parameters or location this can differ from one parameter or location to another. The given date is the first year data is available of one or more locations. During the given period more or less locations can be sampled due to changes in the national monitoring programme. All inspections are carried out by Standard Operating Procedures (SOP's). Sea grass: Both the covered surface and percentage covering with sea grass is surveyed in all watersystems in which sea grass occurred. Most of time the frequency of sampling is once every 2 years, except for some main areas, which are sampled once a year. Higher plants: Most of the time the frequency of sampling is once every 5 years in which the composition and the surface of vegetation will be investigate. For actual planning:

OriginatorsRijkswaterstaat Water, Traffic and Environment
Data web site
OrganisationRijkswaterstaat Centrale Informatievoorziening
ContactNot supplied (Service Desk Data)

Rijkswaterstaat Centrale Informatievoorziening
Derde Werelddreef 1

2622 HA

Telephone+31 (0)15 275 77 00
Facsimile+31 15 275 75 76
Collating centreNational Oceanographic Data Committee
Local identifier20001101
Global identifier2965
Last revised2009-09-21