Dataset

Monitoring of fish in the Voordelta

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

Port of Rotterdam is carrying out the Project Mainport Development Rotterdam, PMR, expanding the port with 1,000 hectares through suppletion of sand in the shallow coastal Voordelta area in the North Sea. As the Voordelta has the status of protected nature reserve (Natura2000 area), the loss of habitat, caused by the expansion of the port, must be compensated for. As part of the compensating measures, the Dutch national government established a series of protected areas in the Voordelta region and is following the effects of these measures. This dataset contains abundances and biomasses of fish in the “Voordelta”. The set exists of a pre-protected status data (2003 – 2007) and a post-protected status (currently still under embargo).

Citation: Borst, J.C.;Stolte, W.; van der Kamp, P.; Rijkswaterstaat (RWS); Havenbedrijf Rotterdam N.V. (HbR); Deltares; Imares; (2016): Monitoring of fish in the Voordelta.

Published: September 17, 2025 at 08:32

URL: http://ipt.vliz.be/eurobis/resource?r=deltares_fish

Willem Stolte
Deltares

Peter van der Kamp
Wageningen University and Research Centre; Institute for Marine Resources and Ecosystem Studies

Kees Borst
Ministerie van Infrastructuur en Waterstaat; Rijkswaterstaat

Havenbedrijf Rotterdam N.V.
Havenbedrijf Rotterdam N.V.

Flanders Marine Institute (VLIZ)
Flanders Marine Institute (VLIZ)

16,225
occurrence records
116,351
measurements and facts
71
taxa
70
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 16,225
100.0%
maximumDepthInMeters 3,282
20.2%
minimumDepthInMeters 3,282
20.2%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag Dropped Records
NO_DEPTH 3,282
20.2%
ON_LAND 2,056
12.7%

Measurement types

DNA derived data