From salt to sea, how does life recolonize a marine basin?

从盐到海洋，生命如何重新定居海洋盆地？

• 批准号: NE/Z000270/1
• 负责人: Daniela Schmidt
• 金额: $ 3.24万
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FZ000270%2F1
• 关键词: salt; sea; how; does; life

During shipboard operations whilst sailing on IODP Expedition 398 in the Aegean Sea, a complete section of the transition from the Miocene to the Pliocene was recovered. This interval marks the end of the Messinian Salinity Crisis, the time when closure of the Gibraltar Strait may have caused much of the Mediterranean Sea to become drawn down and inhospitable to many aquatic organisms. Not only is this the first sediment core recovered from the Messinian Salinity Crisis since 1996, but it also the most complete record ever recovered in all 55 years of scientific ocean drilling. To investigate this interval, I propose to acquire funding from IODP to perform preliminary analyses at the University of Bristol. These sediments and the fossil remains they contain represent a unique opportunity to study the ecological response of marine communities within an ecosystem transitioning back to fully marine. The study has implications not only for understanding the potential effects of future climate change as marine environments become more hostile, but also for analogues of ancient Earth scenarios when marine ecosystems exhibited a significantly different chemical state to the modern ocean.

在爱琴海的IODP Expedition 398航行期间，在船上作业期间，从中新世到上新世的完整过渡段被恢复。这段时间标志着墨西拿盐度危机的结束，当时直布罗陀海峡的关闭可能导致地中海大部分地区被拉低，许多水生生物无法生存。这不仅是自1996年以来第一次从墨西拿盐度危机中恢复的沉积物岩心，而且也是55年来科学海洋钻探中恢复的最完整的记录。为了调查这段时间，我建议从IODP获得资金，在布里斯托大学进行初步分析。这些沉积物和它们所含的化石遗骸代表了一个独特的机会，可以研究生态系统中海洋群落的生态反应，过渡到完全的海洋。这项研究不仅对理解未来气候变化的潜在影响具有影响，因为海洋环境变得更加恶劣，而且对古代地球情景的模拟也具有影响，当时海洋生态系统表现出与现代海洋显著不同的化学状态。