Carotenoid Pigments in Micrzooplankton: Characterization and Relation to Biomass

浮游微生物中的类胡萝卜素色素：特征及其与生物量的关系

• 批准号: 9103870
• 负责人: Evelyn Lessard
• 金额: $ 10.5万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-08-01 至 1994-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9103870&HistoricalAwards=false
• 关键词: Carotenoid; Pigments; Micrzooplankton; Characterization; Relation

Microzooplankton (protozoans and micrometazoans) are abundant in the sea and play significant roles in pelagic food webs. Estimating microzooplankton biomass, however, is a tedious and relatively specialized process. Techniques are needed to augment traditional approaches. It is known that algal pigment content is roughly proportional to biomass. The hypothesis of the present study is that carotenoid pigment content in microzooplankton is also correlated with biomass. The objectives of this research are to test this hypothesis and to identify environmental forcing functions responsible for variability in the relationship. Findings, to date, support the hypothesis, but elaboration is necessary. Experiments will be undertaken to identify the influence of food availability, light intensity and spectral characteristics, and population growth on the pigment:biomass relationship. In addition, the analytical method, which involves HPLC, will be modified to increase carotenoid resolution. The improved method will provide data at higher rates than presently possible, and may allow discrimination between micrometazoan and protozoan biomass.

微型浮游动物（原生动物和微型后生动物）是 在海洋中丰富，并在远洋食物中发挥重要作用 网。 然而，估算微型浮游动物的生物量是一项繁琐的工作。 相对专业化的过程。 需要技术来 加强传统方法。 据了解，藻类色素含量大致为 与生物量成正比。 本研究假设： 微型浮游动物中的类胡萝卜素色素含量 与生物量相关。 本研究的目的是 验证这一假设，并确定环境强迫 负责关系中的可变性的函数。 到目前为止，调查结果支持这一假设，但详细说明是 必要 将进行实验以确定 食物供应、光照强度和光谱影响 特征和种群增长对色素：生物量 关系 此外，分析方法，其中涉及 HPLC，将被修改，以增加类胡萝卜素分辨率。 的 改进的方法将以比目前更高的速率提供数据 可能的，并可能允许区分微型后生动物和 原生动物生物量