Collaborative Research: US GLOBEC: Egg Production, Growth and Mortality, and the Role of Frontal Processes in Copepods Population Dynamics on Georges Bank

合作研究：美国 GLOBEC：乔治银行的鸡蛋生产、生长和死亡率，以及额叶过程在桡足类种群动态中的作用

• 批准号: 9806506
• 负责人: Edward Durbin
• 金额: $ 64.08万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-10-01 至 2002-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9806506&HistoricalAwards=false
• 关键词: Collaborative; Research; US; GLOBEC; Egg

9806506Durbin U.S. GLOBEC Phase I and II results showed that the abundance and production rates of Calanus finmarchicus and Pseudocalanus spp. differ greatly between the shallow well-mixed crest waters of Georges Bank and the deeper waters of the northeast peak and the southern flank. Dr. Ohman and associates suggest that this smaller scale temporal and spatial variability is controlled by variations in vital rates (recruitment, growth and mortality) and frontal processes on GB (convergences, exchange rates across fronts). They will address these questions through the following specific objectives: (1) Determine spatial and temporal changes in abundance of nauplii of Calanus, Pseudocalanus, and of other copepods on Georges Bank during the winter/spring period as a part of the zooplankton broad-scale survey. (2) Determine the spatial, seasonal and inter-annual variation in egg production, growth rates, physiological condition and mortality for the dominant copepod species including Calanus and Pseudocalanus. (3) Determine abundance, individual growth rates, and physiological condition of the target copepod species, as well as the abundance of other zooplankton species, over fine spatial scales across the crest-southern flank tidal mixing front during late April-early May. (4) Provide the modeling and synthesis groups with data on copepod distribution, recruitment, growth and mortality rates. This project is composed of four separate components which have been combined in one proposal. These components are: (1) the broad-scale pump survey, (2) the egg laying rate measurements of Calanus, Pseudocalanus, and other dominant copepods (3) the growth rate measurements of Calanus and Pseudocalanus, and (4) the estimation of egg and naupliar mortality of Calanus and Pseudocalanus. The pump survey will take place during each of the broad scale survey cruises while the latter three components will be carried out during each of the process cruises although broad scale survey female abundance data will be used in bank-wide egg production estimates.

9806506 Durbin U.S. Globec I期和II期结果表明，Calanus Finmarchicus和Pseudocalanus spp的丰度和生产率。乔治银行的浅层冠峰水域与东北峰和南部侧面的较深水域之间的差异很大。 Ohman and Associates博士建议，这种较小的时间和空间变异性受到GB上的生命率（募集，生长和死亡率）以及额叶过程的变化（跨正面的汇合，汇率）的控制。 他们将通过以下特定目标解决这些问题：（1）确定冬季/春季期间乔治·库（Georges Bank）的卡拉努斯（Nauplii），伪造的Nauplii的空间和时间变化，以及乔治银行（Georges Bank）上的其他Copepods，作为浮游动物广泛调查的一部分。 （2）确定包括calanus和pseudocalanus在内的主要copepod物种的卵产量，生长速率，生理状况和死亡率的空间，季节性和年际变化。 （3）确定目标copepod物种的丰度，个体生长速率和生理状况，以及其他浮游动物物种，在4月下旬 - 美洲5月下旬，横跨波峰 - 南方侧面潮汐潮流的精细空间尺度。 （4）为建模和合成组提供有关CopePod分布，招聘，增长和死亡率的数据。该项目由四个单独的组件组成，这些组件已在一个提案中合并。 这些组件是：（1）大规模的泵调查，（2）鸡蛋产卵率的测量值测量，pseudocalanus和其他主要的copepods（3）calanus和pseudocalanus的生长速率测量值，以及（4）鸡蛋和naupliar calanus and pseudocalanus的估计。 泵调查将在每次大规模调查巡游中进行，而后三个组件将在每个过程巡航期间进行，尽管大规模调查女性丰度数据将用于范围内的蛋估计中。