Pholis gunnellus in the Sylt Rømø bight in 2013

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. 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.

由于北海及瓦登海的温度模式发生变化，2007年在叙尔特-勒姆岛湾（Sylt Rømø Bight，SRB）启动了一项为期至少十年的鱼类调查。该调查旨在研究瓦登海的鱼类区系（fish fauna），重点关注其洄游行为、物种组成及摄食习性的变化。SRB内部设有7个采样站，每月采样一次；另设两个参考站，一个位于湾外，一个临近丹麦边境，每年采样四次。采样工具为小型底拖网（mini bottom trawl），总长17米，网口宽7米、高3米，网翼网目尺寸36毫米，中部16毫米，囊网（cod end）6毫米。每个采样站均进行两次拖网作业：一次在水体中，一次在海底，每次拖网时长15分钟，速度约为2节。这些数据将有助于更详细地揭示瓦登海内部的食物链及能量流动特征。