Abstract：
The knowledge of the long-distance dispersal mechanisms of meiofauna is still limited. Rafting is considered as the main mechanism of dispersal of the meiofauna. The recent events of the Sargassum spp. arrival in the Caribbean provides the opportunity to explore long distance mechanisms. Four samples of floating Sargassum spp. were collected from the water column in Xcalak, Quintana Roo, which arrived at the Reef lagoon and Mangrove fringe. A total of 425 organisms were present, 388 nematodes, 36 tardigrades, and a single acarus. Tardigrades were represented by three species, whereas nematodes were represented by 16 morphotypes. The population of both tardigrades and nematodes was composed of mature and juvenile specimens. One tardigrade was collected during their ecdysis process. Our results suggest that not only the nematodes, but also tardigrades and acari can reach the floating Sargassum spp., maintaining in the algae, growing, and reproducing, while they are transported in the sea. We can conclude that in the Caribbean Sea, the floating Sargassum spp. floating is a dispersal mechanism of nematodes and tardigrades.
摘要：
对小型动物远距离扩散机制的了解仍然有限。漂流被认为是小型动物传播的主要机制。马尾藻属的最近事件。加勒比的到来为探索长途机制提供了机会。漂浮的马尾藻属的四个样本。是从Xcalak的水柱中收集的，QuintanaRoo,到达珊瑚礁泻湖和红树林边缘。总共有425种生物存在，388线虫,36个缓步，和一个单一的阿拉斯。缓步由三个物种代表，而线虫由16种形态类型代表。缓步动物和线虫的种群均由成熟和幼年标本组成。在蜕皮过程中收集了一个缓步。我们的结果表明，不仅线虫，而且缓步和acari也可以到达漂浮的Sargessumspp。,保持在藻类中，成长,和繁殖，当它们在海里运输时。我们可以得出结论，在加勒比海，漂浮的马尾藻属。漂浮是线虫和缓行的一种扩散机制。
