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...

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Bibliographic Details
Main Authors: Wehkamp, Stephanie, Fischer, Philipp
Format: Dataset
Language:English
Published: PANGAEA 2013
Subjects:
Event label
DATE/TIME
Latitude of event
Longitude of event
Sample code/label
Direction
Distance
Temperature, water
Visibility
Tide
Laminaria
Comment
Gadus morhua
Trisopterus luscus
Pollachius pollachius
Pollachius virens
Raniceps raninus
Ciliata mustela
Spinachia spinachia
Entelurus aequoreus
Nerophis ophidion
Myoxocephalus scorpius
Taurulus bubalis
Agonus cataphractus
Callionymus lyra
Cyclopterus lumpus
Liparis spp.
Trachurus trachurus
Labrus bergylta
Ctenolabrus rupestris
Zoarces viviparus
Pholis gunnellus
Pomatoschistus flavescens
Pomatoschistus minutus
Pleuronectidae
Fish larvae
Homarus gammarus
Pilumnus hirtellus
Pisidia longicornis
Hyas araneus
Galathea squamifera
Pagurus bernhardus
Cancer pagurus
Carcinus maenas
Liocarcinus spp.
Necora puber
Pollachius pollachius, juvenile
Sampling by diver
Helgoland
Meeresstation Helgoland
Rocky Island
Online Access:https://dx.doi.org/10.1594/pangaea.821916
https://doi.pangaea.de/10.1594/PANGAEA.821916
Description
Summary: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). ...

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