A Comparison of Avian and Zooplankton Ecology in Two Western Arctic Polynyas

9321636 该项目比较了圣劳伦斯岛Polynya（SLIP）和阿纳迪尔Polynya（GAP）海湾的海鸟和浮游动物种群。 SLIP较浅（30- 40米），与较深（50- 200米）GAP的强平流状态相比，预计水循环缓慢。 科学家预测，差距的海洋浮游动物群落将由来自白令海斜坡区平流的中上层新哲水蚤物种主导。 而在SLIP中，小型沿海物种可能会占主导地位，但要到季节后期。 该项目的前提是，海鸟群落占据开放的海洋水洼将反映相对丰富的中上层食物网，食动物的海雀将更丰富的差距比SLIP。 预计SLIP海鸟的饮食将反映一个底栖生物为主的食物网和碳固定在前一个赛季相反，在GAP，从本年度的生产碳可能平流从斜坡上生长桡足类。 这项综合研究将提供海鸟对冰间湖碳预算的潜在影响的一阶估计，以及浮游动物和海鸟在北极西部冰间湖不同的平流制度和假定的碳循环途径的第一个帐户。 ***

9321636 Hunt The project compares seabirds and zooplankton populations in the St. Lawrence Island Polynya (SLIP) and in the Gulf of Anadyr Polynya (GAP). The SLIP is shallow (30-40m) and is expected to have a sluggish water circulation when compared to the strongly advective regime expected for the deeper (50-200m) GAP. Scientists predict that the ocean zooplankton community of the GAP will be dominated by pelagic Neocalanus species that have been advected from the slope region of the Bering Sea. Whereas in the SLIP, small coastal species will probably dominate but not until late in the season. The premise of the project is that seabird communities occupying the open ocean polynyas will reflect the relative abundance of pelagic food web and that zooplanktivorous auklets will be more abundant in the GAP than in the SLIP. It's expected that SLIP seabird diets will reflect an epibenthic dominated food web and carbon fixed in previous season contrary to that in GAP, where carbon from the current year's production may be advected from the slope in growing copepods. This integrated study will provide a first order estimate of the potential influence of seabirds on polynya carbon budgets, and the first accounts of zooplankton and seabirds in western Arctic polynyas with differing advective regimes and presumed carbon cycling pathways. ***