Comparative Study of the Bioenergetics, Growth Rates and Food Preferences of Heterotrohic Dinoflagellates and Ciliates

异养甲藻和纤毛虫生物能学、生长速率和食物偏好的比较研究

• 批准号: 9403426
• 负责人: Evelyn Lessard
• 金额: $ 25.05万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-06-01 至 1998-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9403426&HistoricalAwards=false
• 关键词: Comparative; Study; Bioenergetics; Growth; Rates

9403426 Lessard This project will investigate the bioenergetics, growth and prey preferences of representative heterotrophic dinoflagellates and ciliates in batch cultures to define the trophic roles of each group and to determine how these two groups of potential competitors coexist in the marine plankton. A systematic investigation will be done on the bioenergetics and food preferences in a large number of representative heterotrophic dinoflagellates and ciliates using a 14C-radiotracing method which will include direct measures of egestion and excretion of organic matter. Information on gross growth efficiencies, maximal growth rates, and the effects of temperature and food quality will be obtained under strictly comparable conditions. Careful evaluation of the carbon: volume relationship of thecate and athecate dinoflagellates will also be undertaken, as this is an important but uncertain parameter, which greatly affects estimates of gross growth efficiencies and biomass estimations.

9403426 Lessard该项目将研究批处理培养物中代表性异型性鞭毛鞭毛和纤毛的生物能，生长和猎物偏好，以定义每个组的营养作用，并确定这两组潜在的竞争者如何在海洋浮游生物中同存。 使用14C-radiotracing方法，将对大量代表性的杂货鞭毛酸酯和纤毛的生物能学和食物偏好进行系统的研究，其中包括直接衡量有机物的e宿主和排泄。 在严格可比的条件下，将获得有关总体生长效率，最大生长速率以及温度和食物质量影响的信息。 还将对碳的仔细评估：Thecate和Athecate Winoflagellates的体积关系，因为这是一个重要但不确定的参数，这极大地影响了总生长效率和生物量估计的估计。