Fiber optic measurement system for ecophysiology and metabolic research

用于生态生理学和代谢研究的光纤测量系统

• 批准号: 345677-2007
• 负责人: Gamperl, Kurt
• 金额: $ 1.41万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=326222
• 关键词: Fiber; optic; measurement; system; ecophysiology

Environmental factors (temperature, water oxygen level, daily/seasonal changes in light intensity, currents, depth etc.) have a profound effect on the physiology, activity and behaviour of marine fishes and invertebrates. However, most of the research in this area has focused on juveniles/adults, not on the "critical periods" of embryonic (i.e. the egg) and larval development where natural selection (mortality) is the most intense. In this proposal, fiber-optic oxygen measurement equipment is requested so that we can: 1) ask questions about how the metabolism of marine fish eggs and larvae is affected by environmental stressors of ecological importance (high and low temperature, low oxygen levels etc.); 2) examine aspects of invertebrate egg and larval development, and the metabolism of deep-sea invertebates; 3) test theoretical models that are used to explain the relationships between egg size/quality and fish survival, and 4) examine several aspects related to the functioning of mitochondria (the cell's powerplant) and fish metabolism/physiology. This equipment will support 4 researchers at the Ocean Sciences Centre (Memorial University of Newfoundland), and others, who investigate aspects of fish or invertebrate physiology that directly impact on the biology and ecology of coastal marine organisms inhabiting the cold-ocean environment around Newfoundland and Labrador. This research will allow us to predict how environmental change influences natural populations, and improve our ability to manage marine fish and invertebrate species for sustainable harvesting and conservation purposes.

环境因素（温度、水中含氧量、光照强度的每日/季节变化、海流、深度等）对海洋鱼类和无脊椎动物的生理、活动和行为产生深远影响。然而，这一领域的大多数研究都集中在青少年/成年人，而不是胚胎（即卵）和幼虫发育的“关键时期”，自然选择（死亡率）是最激烈的。在本提案中，要求使用光纤氧气测量设备，以便我们能够：1）询问海洋鱼类卵和幼体的代谢如何受到具有生态重要性的环境压力（高温和低温，低氧水平等）的影响; 2)研究无脊椎动物卵和幼体发育的各个方面，以及深海无脊椎动物的代谢; 3）测试用于解释卵的大小/质量和鱼类生存之间关系的理论模型，以及4）研究与线粒体（细胞的动力装置）和鱼类代谢/生理功能相关的几个方面。这一设备将支持海洋科学中心（纽芬兰纪念大学）的4名研究人员和其他研究人员，他们调查鱼类或无脊椎动物生理学的各个方面，这些方面直接影响居住在纽芬兰和拉布拉多周围冷海洋环境的沿海海洋生物的生物学和生态学。这项研究将使我们能够预测环境变化如何影响自然种群，并提高我们管理海洋鱼类和无脊椎动物物种的能力，以实现可持续捕捞和保护目的。