U.S. GLOBEC: A Retrospective Analysis of Variability in Zooplankton Composition on Georges Bank and the Northwest Atlantic

美国 GLOBEC：乔治浅滩和西北大西洋浮游动物组成变异性的回顾性分析

• 批准号: 9632738
• 负责人: Andrew Solow
• 金额: $ 16.5万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-01 至 2000-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9632738&HistoricalAwards=false
• 关键词: U.S.; GLOBEC; Retrospective; Analysis; Variability

9632738 SOLOW As part of the U.S. GLOBEC Northwest Atlantic Field Studies, Phase 2 program this project will conduct a retrospective analysis of data previously collected from a moored array along the southern side of Georges Bank. The goal of the project is to study interannual to interdecadal variations in the relative abundance or composition of zooplankton communities on and around Georges Bank. Three factors are hypothesized to control zooplankton communities: 1) size-selective predation, 2) mesoscale advective or "wash-out" events, and 3) vertical mixing. Tests of these hypotheses will be considered during the three phases of this study. First, a newly developed statistical technique will be applied to MARMAP zooplankton data to identify trends in zooplankton composition on Georges Bank and the three adjacent regions, i.e., the Gulf of Maine, Southern New England, and the Mid-Atlantic Bight. Next, historical data on predator abundance, sea surface temperature, and wind/thermal stratification will be used to develop predictions about the expected effects on regional zooplankton compositions. Third, the analyses will be extended beyond the MARMAP period (1977- 1987), by incorporating data both from earlier surveys (Atlantis, 1939-1941; Continuous Plankton Recorder, 1962-1989) and from Phase I GLOBEC (1994-1996). ***

SOLOW作为美国GLOBEC西北大西洋现场研究的一部分，该项目第二阶段将对先前从Georges Bank南侧系泊阵列收集的数据进行回顾性分析。该项目的目标是研究乔治海岸及其周围浮游动物群落相对丰度或组成的年际至年代际变化。假设有三个因素控制浮游动物群落：1)大小选择性捕食，2)中尺度平流或“冲刷”事件，以及3)垂直混合。这些假设的检验将在本研究的三个阶段进行。首先，一种新开发的统计技术将应用于MARMAP浮游动物数据，以确定乔治海岸和三个邻近地区（即缅因湾、新英格兰南部和大西洋中部湾）浮游动物组成的趋势。接下来，关于捕食者丰度、海面温度和风/热分层的历史数据将用于预测对区域浮游动物组成的预期影响。第三，分析将扩展到MARMAP期间（1977- 1987）之外，纳入早期调查（Atlantis, 1939-1941；连续浮游生物记录仪，1962-1989）和GLOBEC第一阶段（1994-1996）的数据。＊＊＊