维多利亚博物馆Adnan Moussalli团队宣布他们研究出全球海底动物的时空连通性。这一研究成果于2025年7月23日发表在国际顶尖学术期刊《自然》上。

在这里，研究团队分析了一个新的全球基因组DNA序列数据集，涵盖了整个底栖无脊椎动物（蛇科）的分类类别，以获得从沿海边缘到深海平原的所有海洋的系统发育差异和生物运动的广泛理解。该研究团队表明，大陆架上的区域动物群在系统发育上是不同的，特别是在温带和热带纬度。相比之下，深海中的组合更加紧密相连。许多温带深海谱系已经在整个地球上实现了分布范围，包括第四纪。北大西洋的深海动物群和地球另一端的南南极洲之间存在着密切的关系。水深交换不仅依赖于通过等温极地水域的垂直迁移，而且还发生在热带地区的热深度梯度上。在海洋保护评估中，深海生物的联系性质应是一个重要考虑因素。

据悉，他们对深海生物地理模式和过程的了解，由于缺乏覆盖其广大范围的综合数据集而受到限制。

附：英文原文

Title: Spatiotemporal faunal connectivity across global sea floors

Author: OHara, Timothy D., Hugall, Andrew F., Haines, Margaret L., Weber, Alexandra A.-T., Eichsteller, Angelina, Brogger, Martin I., Elaume, Marc, Fujita, Toshihiko, Kongsrud, Jon A., Martinez Arbizu, Pedro, Mills, Sadie, Olbers, Jennifer M., Paulay, Gustav, Ramil, Fran, Samadi, Sarah, Sands, Chester J., Sellanes, Javier, Solis-Marin, Francisco A., Moussalli, Adnan

Issue&Volume: 2025-07-23

Abstract: Our knowledge of biogeographic patterns and processes in the deep sea has been limited by the lack of integrated datasets that cover its vast extent1. Here we analyse a new global dataset of genomic DNA sequences, spanning an entire taxonomic class of benthic invertebrates (Ophiuroidea), to obtain a broad understanding of phylogenetic divergence and biotic movement across all oceans, from coastal margins down to the abyssal plains. We show that regional faunas on the continental shelf are phylogenetically divergent, particularly at temperate and tropical latitudes. By contrast, assemblages in the deep sea are much more connected. Many temperate deep-sea lineages have achieved distribution ranges across the planet, including over the Quaternary period. A close relationship exists between deep-sea faunas of the northern Atlantic and, on the opposite side of the globe, southern Australia. Bathymetric interchange is not only reliant on vertical migration through isothermal polar waters but also occurs across the thermal depth gradients of tropical regions. The connected nature of deep-sea life should be an important consideration in marine conservation assessments.

DOI: 10.1038/s41586-025-09307-1

Source: https://www.nature.com/articles/s41586-025-09307-1