Upwelling Fronts: Collision with Intertidal Zone and Barnacle Recruitment in California

提出的工作包括测试岩石潮间带藤壶种群的补充脉冲是由上升流锋面与岩石潮间带的碰撞引起的假设。据推测，上升流锋是一个汇聚的地方，潮间带藤壶的幼虫在那里聚集。为了验证这一假设，需要了解上升流锋面的位置和垂直结构的时间历史，以及水柱中幼虫的分布和丰度，以及它们在活跃上升流和上升流放松期间的招募成功。PIs建议通过一系列现场测量来解决这一问题，包括：(1)在两个上升流季节的每一个季节进行六次短途巡航，沿着加利福尼亚州蒙特雷附近的样带使用船上网拖带以及温度、盐度和速度测量；（二）系泊测温测风；(3)潮间带底栖生物监测；(4)岸基温度和盐度测量；(5)卫星AVHRR数据。

The proposed work consists of testing the hypothesis that recruitment pulses to rocky intertidal barnacle populations are caused by the collision of upwelling fronts with the rocky intertidal zone. It is hypothesized that the upwelling front is a place of convergence, and that larvae of intertidal barnacles accumulate there. To test this hypothesis, knowledge of the temporal history of the position and vertical structure of an upwelling front is required, along with knowledge of the distribution and abundance of larvae in the water column, and their recruitment success during periods of active upwelling and relaxation from upwelling. The PIs propose to address this issue through a series of field measurements consisting of: (1) use of shipboard net tows together with temperature, salinity, and velocity measurements along a transect off Monterey, California, on six short cruises during each of two upwelling seasons; (2) moored measurements of temperature and wind; (3) benthic monitoring in the intertidal zone; (4) shore-based measurements of temperature and salinity; and, (5) satellite AVHRR data.