Physiological Basis of Metabolism and Activity: Phenotypic and Evolutionary Plasticity of Locomotor Performance Capacity

代谢和活动的生理基础：运动能力的表型和进化可塑性

• 批准号: 9420155
• 负责人: Albert Bennett
• 金额: $ 24.8万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-01 至 1999-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9420155&HistoricalAwards=false
• 关键词: Physiological; Basis; Metabolism; Activity; Phenotypic

9420155 Bennett Water temperature is a critical environmental variable that plays a major role in determining the distribution and abundance of fish species. Temperature changes alter muscle function and hence escape speed and vulnerability to predators. This project will examine the effects of temperature, temperature changes and predation on escape behavior of fish. Acclimation to long-term temperature changes will be examined in several species of cyprinid fish by high speed video filming of escape behavior and analysis of muscle contractile properties and the enzymatic bases of those properties. The same techniques will be used to examine the effect of historical (multigenerational) exposure to differing levels of predation on fish populations to determine whether exposure to predation causes divergence in locomotor performance capacities. The research will provide a basis for predicting likely effects of water temperature on stock performance in nature, the ability of those stocks to adjust performance over longer term temperature exposure, and potential evolutionary changes in fish stocks introduced into new areas with new predatory regimes. This information is important to both fisheries management and to understanding how populations of cold-blooded vertebrates may adjust to climate change or range extension.

9420155班尼特 水温是一个关键的环境变量，在确定鱼类的分布和丰度方面发挥着重要作用。 温度变化改变肌肉功能，因此逃避速度和脆弱性 捕食者。 这个项目将研究 温度、温度变化和捕食对鱼类逃逸行为的影响。 将通过高速视频拍摄逃逸行为以及分析肌肉收缩特性和这些特性的酶基础来检查几种鲤科鱼类对长期温度变化的适应。 同样的技术将用于检查 的 效果 历史（多代）接触 到 不同程度的捕食 对 鱼类种群，以确定是否暴露于捕食导致运动性能的能力分歧。 这项研究将为预测水温对自然界股票表现的可能影响提供基础，这些股票在长期内调整表现的能力 温度暴露和潜在的 鱼类种群的进化变化引入新的地区，具有新的捕食制度。 这一信息对于渔业管理和了解冷血脊椎动物种群如何适应气候变化或分布范围的扩大都很重要。