CNRS/INSU, IRD, Mediterranean Institute of Oceanography-MIO, Université du Sud Toulon-Var, Aix-Marseille Université, UM 110, 83957 La Garde Cedex, France.
Mar Pollut Bull. 2013 May 15;70(1-2):90-9. doi: 10.1016/j.marpolbul.2013.02.016. Epub 2013 Mar 8.
Jellyfish blooms are generally attributed to a biological response to the environment, neglecting the role of transport patterns in redistributing existing populations. Here, we use high-resolution (1.25km) ocean modeling to examine the role of transport in the onshore arrival and abundance of the pelagic stinging jellyfish Pelagia noctiluca on the Ligurian Sea coast. Jellyfish are modeled as Lagrangian particles with a 0-300-m diel vertical migration typical of P. noctiluca. Over the course of a year, onshore arrivals are not restricted to the summer. Arrivals are concentrated at capes, but abundance can reach maxima in bays and in the lee of capes. Two factors impact jellyfish arrivals at the coast: the position of the Northern Current and the wind. A comparison of summer 2006 and available onshore jellyfish observations suggests a correct capture of the main stranding events by the model. These results have implications for understanding long-term fluctuations.
水母爆发通常归因于对环境的生物学反应，而忽略了运输模式在重新分配现有种群方面的作用。在这里，我们使用高分辨率（1.25km）海洋模型来研究运输在沿海水域中浮游刺胞动物夜光游水母Pelagia noctiluca 的上岸和丰度中的作用。水母被模拟为拉格朗日粒子，具有典型的 P. noctiluca 的 0-300 米日垂直迁移。在一年的时间里，上岸并不限于夏季。登陆集中在海角，但在海湾和海角背风处的丰度可以达到最大值。有两个因素影响着水母在海岸的登陆：北海流的位置和风。将 2006 年夏季与现有的岸上海水母观测结果进行比较，表明模型正确捕获了主要的搁浅事件。这些结果对理解长期波动具有重要意义。
