Development of an Autonomous, Time-Series Benthic Recruitment Sampler

PI建议开发和测试一种自主的、时间序列的、原位海底无脊椎动物补充采样器，用于各种软质沉积物栖息地。采样器的设计将基于以前开发的仪器(称为Elvis)，该仪器是为采样水柱而建造的。新的采样器将允许受控和重复地将幼虫定居底物暴露在不同的物理条件下(例如，水流、光照水平、温度)。该项目有三个主要目标：第一，设计和建造一种泥沙布放的招募采样器，它将集成到控制器-微处理器和环境传感器中，使采样器能够在完全自主的模式下工作。第二，进行一系列的实验室和现场测试，以评估该设备的操作限制和抽样假设。第三，检查取样装置在一些浅水栖息地的性能和局限性。

The PI proposes to develop and test an autonomous, time-series, in situ benthic invertebrate recruitment sampler for use in a variety of soft-sediment habitats. The sampler design will be based on a previously developed instrument (called ELVIS) that was constructed for sampling the water column. The new sampler will permit controlled and repeated exposure of larval settlement substrates to different physical conditions (e.g. water flow, light levels, temperature ). This project has three primary objectives: First, to design and construct a sediment-deployed recruitment sampler which will be integrated to a controller-microprocessor and environmental sensors to permit the sampler to operate in fully autonomous mode. Second, to conduct a series of laboratory and field tests to assess operational constraints and sampling assumptions of the device. Third, to examine the sampling device's performance and limitations in a number of shallow water habitats.