ECOHAB: Zooplankton Grazing of Toxic Alexandrium spp.as a Mechanism in the Control of Bloom Formation and Toxin Transfer

ECOHAB：有毒亚历山大藻的浮游动物放牧作为控制水华形成和毒素转移的机制

• 批准号: 9726261
• 负责人: Edward Durbin
• 金额: $ 34万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-15 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9726261&HistoricalAwards=false
• 关键词: ECOHAB; Zooplankton; Grazing; Toxic; Alexandrium

Toxic Alexandrium spp. dinoflagellates cause paralytic shellfish poison (PSP) outbreaks in the Gulf of Maine each year, posing a public health threat and resulting in economic loss. The population dynamics of Alexandrium spp. are at present poorly understood; in order to understand and model these dynamics basic information on the mechanisms that allow blooms to form must be obtained. This study will determine the role of grazing by the dominant zooplankton (copepods) in the population dynamics of toxic Alexandrium spp. The study will conduct laboratory experiments to elucidate the mechanisms responsible for specific grazing behavior of dominant zooplankton species. Coordinated in situ field studies focusing on the spring period of bloom initiation will also be conducted, at sites where high PSP levels occur early and regularly.

有毒的亚历山德里姆属。每年缅因州海湾引起麻痹性贝类毒药（PSP）爆发，构成公共卫生威胁并导致经济损失。亚历山大属的人口动态。目前的理解很少；为了理解和建模这些动态，必须获得有关允许开花的机制的基本信息。这项研究将确定主要的浮游动物（copepods）在有毒亚历山德里姆属的种群动态中放牧的作用。该研究将进行实验室实验，以阐明负责主要浮游动物物种特定放牧行为的机制。还将在高PSP水平早期和经常发生的地点进行协调的原位研究。