Schourup-Kristensen Vibe, Larsen Janus, Stæhr Peter Anton Upadhyay, Maar Marie
Aarhus University, Department of Ecoscience, Frederiksborgvej 399, PO Box 358, 4000, Roskilde, Denmark.
Aarhus University, Department of Ecoscience, Frederiksborgvej 399, PO Box 358, 4000, Roskilde, Denmark.
Mar Environ Res. 2023 Oct;191:106111. doi: 10.1016/j.marenvres.2023.106111. Epub 2023 Aug 9.
The introduction-rate of non-indigenous species (NIS) to coastal water bodies has accelerated over the last century. We present a model study assessing the fate of NIS released in likely point sources of the Danish Wadden Sea. We show that NIS-particles released in the deep North Sea are generally transported away from the Wadden Sea, while those released in the coastal North Sea and the Wadden Sea show large variability in track pattern and settlement location. Consequently, the introduction of NIS from ships entering the port of Esbjerg pose a threat to the Wadden Sea through primary and secondary spreading, while transport of species from sources in the south likely causes a slow and steady settling of NIS in the Wadden Sea and coastal North Sea. The study points to the importance of enforcing an efficient monitoring system to ensure early detection of changes to the species composition of the Wadden Sea.
在过去的一个世纪里，非本土物种（NIS）进入沿海水体的速率加快了。我们进行了一项模型研究，评估丹麦瓦登海可能的点源中释放的非本土物种的归宿。我们发现，在北海深处释放的非本土物种颗粒通常会被运离瓦登海，而在北海沿岸和瓦登海释放的颗粒在轨迹模式和沉降位置上表现出很大的变异性。因此，进入埃斯比约港的船舶引入的非本土物种通过初级和次级扩散对瓦登海构成威胁，而来自南部源地的物种运输可能导致非本土物种在瓦登海和北海沿岸缓慢而稳定地沉降。该研究指出了实施高效监测系统以确保早期发现瓦登海物种组成变化的重要性。
