REU: GLOBEC: Significance of Circulation to Egg and LarvalDistributions on Georges Bank

这是一个跨学科的，特定地点的建模研究 专注于在GLOBEC -全球范围内进行的乔治银行 美国全球变化海洋生态系统动态框架 研究计划。 它需要一个合作的努力， 美国和加拿大渔业部的科学家 和海洋。 生物学和物理学数据将进行检查， 借助正在开发的三维环流模型 在达特茅斯学院和斯基达韦海洋研究所。 本研究将集中于海扇贝（Placopectin magellanicus）、大西洋鳕鱼（Gadus morhua）和桡足类 芬兰哲水蚤 幼虫漂移模型驱动的 循环模型将被创建并用于确定 在多大程度上卵和幼虫分布在乔治银行可以 由月平均环流场解释;及 评估简单行为的重要性（垂直 迁移）和更复杂的物理（时间依赖性，空间 卵和幼虫的分布。 一般的方法是关注零假设 分布由被动平流决定， 月平均环流场的扩散， 这是一个推论，即表面上的“保留”仅仅反映了 银行的自然停留时间。 显著性假设 高频流动变化的影响，小规模 并探讨水流结构及垂直迁移。

This is an interdisciplinary, site-specific modeling study focused on the Georges Bank conducted within the GLOBEC -Global Ocean Ecocsystems Dyanamics framework of the U.S. Global Change Research Program. It involves a collaborative effort on the part of U.S. and Canadian scientists at the Department of Fisheries and Oceans. Biological and physical data will be examined with the aid of three-dimensional circulation models under development at Dartmouth College and Skidaway Institute of Oceanography. The study will focus on sea scallops (Placopectin magellanicus), Atlantic cod (Gadus morhua) and the copepod Calanus finmarchicus. Larval drift models driven by the circulation models will be created and used to determine the extent to which egg and larval distributions on Georges Bank can be explained by the monthly-mean circulation fields; and to evaluate the significance of simple behaviors (vertical migration) and more complex physics (time-dependence, spatial structures) to the egg and larval distributions. The general approach will be to focus on the null hypothesis that distributions are determined by passive advection and diffusion in the monthly-mean circulation fields, and the corollary that apparent "retention" is merely a reflection of the Bank's natural residence time. Hypotheses for significant influences from higher-frequency flow variability, small-scale flow structures and vertical migration will also be explored.