Triple-D dredge benthos sampling

Latest version published by NIOZ Royal Netherlands Institute for Sea Research on 26 January 2023 NIOZ Royal Netherlands Institute for Sea Research

Download the latest version of the metadata-only resource metadata as EML or RTF:

Metadata as an EML file download in English (7 KB)
Metadata as an RTF file download in English (5 KB)


Triple-D dredge The Triple-D (Deep Digging Dredge) was developed to quantitatively sample the larger-sized, often more sparsely distributed and longer-lived in- and epifauna. A prototype was described in Bergman and van Santbrink (1994). The Triple-D (2.40* 2.60*1.20 m; weight 1200 kg; towing speed 3 knots) effectively excises a 20 cm deep strip of sediment with a width of 20 cm from the seabed, of which the length of 100 m is controlled by an odometer triggering a pneumatic opening/closing mechanism. The sediment washes through the 7x7 mm meshes of a 6 m net astern the dredge. Catches of the Triple-D representing the fauna in 20 m2 are sorted and identified on board (for technical details Triple-D see


The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

van der Veer H W, Bergman M (2023): Triple-D dredge benthos sampling. v1.4. NIOZ Royal Netherlands Institute for Sea Research. Dataset/Metadata.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is NIOZ Royal Netherlands Institute for Sea Research. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: cbd94ecf-e0c8-4e59-8a1a-36f7c9e17041.  NIOZ Royal Netherlands Institute for Sea Research publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Netherlands Biodiversity Information Facility.


Metadata; Metadata


Henk W. van der Veer
  • Originator
  • Point Of Contact
Head department
Royal NIOZ
Magda Bergman
  • Originator
  • Point Of Contact
Senior scientist
Royal NIOZ
Henk De Vries
  • Distributor
NLBIF (Netherlands Biodiversity Information Facility)
P.O. Box 9517
2300 RA Leiden 2300 RA

Geographic Coverage

North Sea

Bounding Coordinates South West [51.15, -4.446], North East [62.058, 8.01]

Taxonomic Coverage

No Description available

Phylum Bivalves (Bivalves)

Additional Metadata

Alternative Identifiers cbd94ecf-e0c8-4e59-8a1a-36f7c9e17041