Respiration flumes for studies of comparative energetics

用于比较能量学研究的呼吸槽

基本信息

批准号：
RTI-2019-00283
负责人：
Leys, Sally
金额：
$ 6.94万
依托单位：
University of Alberta
依托单位国家：
加拿大
项目类别：
Research Tools and Instruments
财政年份：
2018
资助国家：
加拿大
起止时间：
2018-01-01 至 2019-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=657403
关键词：
Respiration flumes studies comparative energetics

项目摘要

In marine and freshwater environments concentrations of dissolved gases can change over the short term in response to stressors such as increased temperature or exposure to environmental pollutants. Our groups study how tolerant modern animals are to different levels of dissolved gases in order to understand their ability to adapt to different stressors today. Concentrations of dissolved gases in the oceans have also changed in the course of the Earth's history, so our studies of the tolerance of modern animals to lower levels of oxygen can be used to infer what the first animals may have tolerated, and therefore what they may have looked like. In this proposal we request funds for a set of flow chambers to measure respiration in aquatic animals in a temperature- and flow-controlled environment. This equipment will allow our six students and PDFs to measure the impact of the exchange of oxygen and carbon dioxide in environmental chambers (ranging in size from half a millilitre to 30 litres) on animals as diverse as sponges and fish, and in embryos, juveniles and adults. The flow flumes will provide data on the thresholds of animals to changes in their water environment. These data will help reconstruct the history of animals and ecosystems on Earth. The data will also be used by federal, provincial and regional governments to establish effective management of marine and freshwater ecosystems today. *****

在海洋和淡水环境中，溶解气体的浓度可能会在短期内改变压力源，例如温度升高或暴露于环境污染物。我们的小组研究了现代动物对不同水平溶解气体的耐受性，以了解它们适应当今不同压力源的能力。在地球历史的过程中，海洋中溶解气体的浓度也发生了变化，因此我们对现代动物对较低氧气的耐受性的研究可用于推断第一批动物可能耐受的东西，因此它们的外观。在此提案中，我们要求用于一组流室的资金，以测量温度和流量控制环境中水生动物的呼吸。该设备将使我们的六名学生和PDF能够测量环境室中氧和二氧化碳交换的影响（尺寸从半毫升到30升）对像海绵和鱼类一样多样化，以及胚胎，少年和成人。流量将提供有关动物阈值的数据，以使其水环境变化。这些数据将有助于重建地球上动物和生态系统的历史。该数据还将被联邦，省和地区政府使用，以建立当今海洋和淡水生态系统的有效管理。 *****