Critical instrumentation for the study of geological, chemical and biological processes in marine sediments in Eastern Canada

研究加拿大东部海洋沉积物地质、化学和生物过程的关键仪器

• 批准号: RTI-2023-00208
• 负责人: Pellerin, Andre
• 金额: $ 10.93万
• 依托单位: Université du Québec à Rimouski
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=765288
• 关键词: Critical; instrumentation; study; geological; chemical

The fleet of corers we request is urgently needed to enhance and to replace, our ageing and broken or lost coring equipment that are deployed in the St. Lawrence and the Arctic. UQAR and its nonprofit organization, REFORMAR, manage research vessels for the Canadian scientific community (R/V Coriolis II, Lampsillis, Louis-Edmond-Hamelin,) which provides access to the St. Lawrence seaway. These ships are suitable for deploying the coring suite requested. In the Arctic, where most of the team members have NSERC-DG grants, the CCGS Amundsen is used for scientific research with the capacity to deploy the proposed corers. These research ships are the most (if not the only) cost-effective way for Canadian researchers to develop research projects requiring seafloor samples in the St. Lawrence and the Arctic. The ISMER-UQAR coring suite was used extensively over the past 20 years by the Canadian community. Most instruments now show signs of advanced wear and are becoming increasingly ineffective to collect sediments. Historically, in addition to the extensive use by ISMER-UQAR, the coring equipment was used for the research programs of several researchers from McGill, U. Laval, INRS-ETE, Concordia U. and UQAM, as well as by provincial and federal ministries (e.g., Fisheries and Oceans Canada, Geological Survey Canada, Environment Canada). From 2001-2021, the equipment was used by 437 researchers to recover samples for over 110 scientific expeditions at sea (842 days at sea) and used in the training of 1593 HQP. Now, our box corer, the most highly used of our corers for recent sediment and benthic fauna needs urgent replacement as it was lost at sea. Furthermore, we are lacking the means of sampling near the surface-water interface for benthic biology and biogeochemistry. We seek funding to diversify our coring suite including box corer, hammer corer, multi-corer and vibrocorer. The box, hammer and multi corer will provide enhanced and more precise access to samples from the sediment-water interface. The vibrocorer can penetrate consolidated or coarser sediments and thus allows us to access the sedimentary records of sandy or consolidated layers. The hammer corer is ideal for shallow water work aboard a small boat, which can lower operational costs. Together, this suite allows full integration of sediment sampling that opens the door to new projects and boosts innovation. We also request funds for a multi-corer, a vibrocorer and a small portable hammer corer. A large portion of Canadian oceanography research relies on this equipment in order to retrieve the sediments needed for geological, biological and geochemical oceanography in the Arctic and the St. Lawrence. To grant broad access to the equipment, we maintain a pool of instruments accessible by all Canadian researchers and readily available to any potential users. This guarantees that the equipment is available to all regardless of personal background.

我们迫切需要我们要求的取芯机队来增强和更换我们部署在圣劳伦斯和北极地区的老化、损坏或丢失的取芯设备。 UQAR 及其非营利组织 REFORMAR 为加拿大科学界管理研究船（R/V Coriolis II、Lampsillis、Louis-Edmond-Hamelin），这些船提供通往圣劳伦斯海道的通道。这些船舶适合部署所需的取芯套件。在北极，大多数团队成员都获得了 NSERC-DG 拨款，CCGS Amundsen 用于科学研究，具有部署拟议取芯器的能力。这些研究船是加拿大研究人员开发需要圣劳伦斯和北极海底样本的研究项目的最（如果不是唯一）最具成本效益的方式。 ISMER-UQAR 取芯套件在过去 20 年中被加拿大社区广泛使用。大多数仪器现在都显示出严重磨损的迹象，并且收集沉积物的效率越来越低。从历史上看，除了 ISMER-UQAR 的广泛使用外，取芯设备还被麦吉尔大学、拉瓦尔大学、INRS-ETE、康考迪亚大学和 UQAM 的几位研究人员以及省和联邦部门（例如加拿大渔业和海洋部、加拿大地质调查局、加拿大环境部）的研究项目所使用。 2001年至2021年，437名研究人员使用该设备为110多次海上科考（海上842天）回收样本，并用于1593个指挥员的训练。现在，我们的箱式取芯器是最近沉积物和底栖动物群中使用最频繁的取芯器，因为它在海上丢失了，需要紧急更换。此外，我们缺乏在地表水界面附近进行海底生物学和生物地球化学采样的方法。我们寻求资金来丰富我们的取芯套件，包括箱式取芯器、锤式取芯器、多功能取芯器和振动取芯器。盒子、锤子和多芯钻探器将提供增强且更精确地从沉积物-水界面获取样品的方法。振动取样器可以穿透固结或更粗糙的沉积物，从而使我们能够获取砂质或固结层的沉积记录。锤式取芯器非常适合在小船上进行浅水作业，从而降低运营成本。总之，该套件可以完全集成沉积物采样，为新项目打开大门并促进创新。我们还请求资金购买多功能取芯器、振动取芯器和小型便携式锤式取芯器。加拿大海洋学研究的很大一部分依赖于该设备，以获取北极和圣劳伦斯地区地质、生物和地球化学海洋学所需的沉积物。为了允许广泛使用设备，我们维护了一个所有加拿大研究人员都可以使用的仪器池，并且任何潜在用户都可以随时使用。这保证了所有人都可以使用该设备，无论个人背景如何。