BIOACCUMULATION OF CONTAMINANTS THROUGH FOOD WEBS

污染物通过食物网的生物累积

• 批准号: 6107766
• 负责人: NEO MARTINEZ
• 金额: $ 12.7万
• 依托单位: SAN FRANCISCO STATE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-01-01 至 1999-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6107766
• 关键词: ecology; ecosystem; environmental toxicology; food chain contamination; hydropathy; polymerase chain reaction

This pilot project aims towards developing a proposal to apply basic ecological food-web research to the closely related biomedical problem of contaminant bioaccumulation in ecosystems. Bioaccumulated contaminants threaten the health of organisms including humans that consume fish and other organisms from the environment. Two primary activities are proposed. The first establishes a rigorous connection between basic ecological issue of food-web structure and the applied problem of calculating the potential for species within ecosystems to bioaccumulate lipophilic toxic contaminants. The activity involves theoretical, analytical and empirical explorations. The second activity establishes a procedure to apply the quantitative polymerase chain reaction (QPCR) to the analysis of feeding relations among organisms. Specific pilot project tastes include 1) conducting library research on the biomagnification factors associated with feeding relations, 2) exploring the availability of data quantifying the feeding relations of omnivores, and 3) evaluating QPCR methods in the literature and in the lab that are both appropriate for analyzing feed relations and use locally available equipment. It is anticipated that completing these tasks will provide a strong foundation for a subsequent proposal to estimate the bioaccumulative potential of ecosystems through food-web studies.

该试点项目旨在制定一项提案， 生态食物网研究与生物医学问题密切相关， 污染物在生态系统中的生物累积。生物累积污染物 威胁包括食用鱼类的人类在内的生物体的健康， 其他生物从环境中。建议开展两项主要活动。 第一个是建立基本生态问题与 食物网结构及其势能计算的应用问题 生态系统中的物种生物积累亲脂性有毒物质 污染物。该活动涉及理论，分析和经验 探索.第二项活动建立了一个应用 定量聚合酶链反应（QPCR）分析摄食 有机体之间的关系。具体的试点项目口味包括1） 开展有关生物放大因子的图书馆研究， 与喂养关系，2）探索数据量化的可用性 杂食动物的摄食关系，3）评价QPCR方法在 文献和实验室都适合分析饲料 使用当地现有的设备。预计各国 完成这些任务将为今后的工作奠定坚实的基础。 关于评估生态系统的生物累积潜力的建议， 食物网研究