Gadus morhua in the Sylt Rømø bight in 2021

• Main Authors: Kress, Timm, Hussel, Birgit, Kadel, Petra, Asmus, Harald, Asmus, Ragnhild, Rick, Johannes J, Wiltshire, Karen Helen
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: DATE/TIME; Depth; bathymetric; fish monitoring; Gadus morhua; total length; Habitat; LATITUDE; Latitude 2; LONGITUDE; Longitude 2; Long-term Ecological Research at AWI; Long-term time series Sylt; LTER; Quantitative fish monitoring; Sylt Roads; Salinity; Sample code/label; Sylt_trawl; Sylt; Rømø bight; North Sea; Temperature; water; TRAWL; Trawl net; Wadden Sea
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.948893; https://doi.org/10.1594/PANGAEA.948893

Due to changing temperature regimes in the North- and the Wadden Sea, a fish survey in the Sylt Rømø bight (SRB) was established in 2007 for at least ten years. The aim is to investigate the Wadden Sea fish fauna with special interest in changes of migration behavior, species composition and feeding habits. Since 2021 an assessment of the epibenthic species in the net hauls was included. Seven stations are sampled monthly inside the SRB. Two additional stations, one outside the bight, one close to the Danish border are sampled as references four times a year. For sampling a mini bottom trawl, total length 17 m, trawl opening 7 m, height 3 m with a mesh size of 36 mm in the wings, 16 mm in the mid part and 6 mm in the cod end is used. At every station one haul in the water column and another at the bottom are sampled, for 15 minutes at a speed of approximately 2 knots. The data will help to give a more detailed picture of food chains and energy flows inside the Wadden Sea.