主笔:于梅君 在湛蓝的海洋深处,生活着与恐龙同时代的"老住户"——砗磲。它是一种能长到一两米的巨型贝壳,宛如 海底飘动的"彩虹贝壳"。然而,这个海底"活化石",如今正面临严峻的生存挑战。为了拯救它们,科学家化 身"月老",为砗磲的繁衍和生存搭建起"希望跳板"。 砗磲超能力:光合共生,长命百岁 想象一下,有一种动物无需每日辛苦觅食,只需晒晒太阳就能茁壮成长,寿命还能超过百岁,是不是令人惊 叹?砗磲便是这样神奇的生物。 砗磲最神奇之处,在于其独特的生存方式。当阳光穿透海水,砗磲缓缓张开双壳,露出边缘绚烂的外套膜。 外套膜可不只是美丽的装饰,它更像是一块精密的"太阳能板",可将阳光汇聚起来,输送给体内共生的微小 藻类——虫黄藻。 虫黄藻通过光合作用制造养分,并把大部分"食物"分享给砗磲。作为回报,砗磲为藻类提供安全的住所和 生长所需的二氧化碳。这种完美的合作关系,让砗磲成为海洋中的"光合动物",堪称靠伙伴"种菜"养活自 己的聪明生物。 美丽之殇:砗磲深陷多重危机 砗磲的外表虽不十分惊艳,但张开贝壳后,孔雀蓝、粉红、翠绿等绚丽颜色十分迷人,被誉为"贝类之王"。 然而,这份美丽既是自然的杰作,也成了它们的"阿喀琉斯之踵 ...

Core Insights - The second training workshop on marine endangered species habitat modeling was held in Surat Thani, Thailand, from August 25 to 28, 2025, aimed at enhancing technical skills in habitat distribution research and conservation of marine endangered species [5] Group 1: Event Overview - The workshop was co-hosted by the First Institute of Oceanography under the Ministry of Natural Resources and the Department of Marine and Coastal Resources of Thailand, focusing on deepening cooperation in marine biodiversity conservation between China and Thailand [5] - The training included a core case study on the endangered species Dugong, covering concepts of species distribution models, data acquisition, preprocessing methods, and habitat model construction and validation [5] Group 2: Training Outcomes - Participants received hands-on guidance to complete the entire process of species distribution modeling, ensuring effective technical teaching [5] - The successful execution of the workshop enabled Thai participants to master habitat modeling techniques for marine endangered species, laying a foundation for future joint research, data sharing, and conservation actions between the two countries [5] Group 3: Future Collaboration - China and Thailand will focus on endangered species such as the Bryde's whale, Chinese white dolphin, Dugong, and sea turtles for in-depth research [5] - Collaborative efforts will include environmental DNA monitoring, species spatial distribution simulation, and migration corridor identification, supporting the spatial planning of marine protected areas in Thailand and contributing to regional marine biodiversity conservation [5]

Core Viewpoint - The article highlights the importance of horseshoe crab conservation, emphasizing ongoing research and monitoring efforts in the Beibu Gulf to protect this ancient marine species, which is crucial for marine biodiversity [4][5]. Group 1: Research and Monitoring Efforts - The Fourth Institute of Oceanography has been conducting surveys of horseshoe crab resources in the Beibu Gulf, providing essential scientific support for the conservation of this valuable species [4]. - A long-term monitoring network has been established in key habitats such as Shatian and Zhulin, allowing researchers to accurately track population dynamics, distribution patterns, and habitat changes [4]. - This year's survey has successfully completed field monitoring of three important horseshoe crab habitats, focusing on both population and environmental quality assessments [4]. Group 2: Data Collection and Analysis - The research team collected sediment and water samples from habitats to analyze environmental factors affecting horseshoe crab survival and reproduction, which will inform habitat protection and restoration efforts [4]. - In the previous year's monitoring, a notable density of horseshoe crabs was recorded in the Shatian area, reaching 46.88 individuals per 100 square meters, indicating a relatively healthy habitat and the potential success of long-term conservation efforts [5]. Group 3: Regional and Global Collaboration - The Fourth Institute of Oceanography joined the Asia-Pacific Horseshoe Crab Observation Network in 2021, promoting standardized monitoring methods and international sharing of conservation experiences and research results [5].