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.

我们要求的取芯机队迫切需要加强和更换我们部署在圣劳伦斯和北极地区的老化和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），该船提供进入圣劳伦斯航道的机会。这些船适合部署所要求的取芯套件。在北极，大多数团队成员都有NSERC-DG赠款，CCGS Amundsen用于科学研究，能够部署拟议的取芯器。这些研究船是加拿大研究人员在圣劳伦斯和北极地区开展需要海底样本的研究项目的最具成本效益（如果不是唯一的话）的方式。过去20年来，加拿大社区广泛使用了ISMER-UQAR取芯套件。大多数仪器现在都显示出严重磨损的迹象，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，取芯设备还用于来自美国麦吉尔大学的几位研究人员的研究计划。拉瓦尔，INRS-ETE，协和U。和UQAM，以及省级和联邦部委（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）。从2001年到2021年，437名研究人员使用该设备在海上进行了110多次科学考察（海上842天），并用于培训1593名HQP。现在，我们的箱式取样器，是我们最近沉积物和底栖动物取样器中使用最多的，需要紧急更换，因为它在海上丢失了。此外，我们缺乏在地表水界面附近进行海底生物学和海洋地球化学取样的手段。我们寻求资金，使我们的取芯套件多样化，包括箱式取芯器、锤式取芯器、多芯取芯器和振动取芯器。箱、锤和多芯取样器将提供更好和更精确的从沉积物-水界面取样的机会。振动取样器可以穿透固结或较粗的沉积物，从而使我们能够获得桑迪层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，可以降低运营成本。该套件可实现沉积物采样的全面集成，为新项目打开大门，并促进创新。我们还要求提供资金，以购买一台多芯取样器、一台振动取样器和一台小型便携锤式取样器。加拿大海洋学研究的很大一部分依靠这一设备，以便在北极和圣劳伦斯河提取地质、生物和地球化学海洋学所需的沉积物。为了让更多的人使用这些设备，我们保留了一批仪器，供所有加拿大研究人员使用，并随时提供给任何潜在的用户。这保证了设备是提供给所有人，无论个人背景。