Crustaceans and fish abundances and species at and around artificially introduced tetrapod fields in the southern North Sea, 2013


The study area is situated 400 m north of a small rocky island (Helgoland, 54°11'N, 07°52'E) in the southern North Sea. Fish and crustacean abundances were sampled using SCUBA at 3 introduced tetrapod fields (54°11.622' N, 07°52.652' E; 54°11.578' N, 07°52.707' E; 54°11.552' N, 07°52.740' E) in the experimental area MarGate. Sampling was done along 20 m long line transects starting at the specific tetrapod field. The transects were fixed in four directions away of the fields. Every 5 m the diver observed the demersal fish and decapod crustacean abundances in a 2 m**2 field. Further sampling took place from June - October 2010 and 2011 (doi:10.1594/PANGAEA.821915). A pre-study took place at the same positions before the tetrapods were introduced in 2009 (doi:10.1594/PANGAEA.821909).

Metadata Access
Creator Wehkamp, Stephanie; Fischer, Philipp
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Contributor Alfred Wegener Institute - Biological Institute Helgoland
Publication Year 2013
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 19129 data points
Discipline Biospheric Sciences; Ecology; Geosciences; Natural Sciences
Spatial Coverage (7.878W, 54.193S, 7.879E, 54.194N); German Bight, North Sea
Temporal Coverage Begin 2013-03-15T12:00:00Z
Temporal Coverage End 2013-09-13T12:00:00Z