Combined Acoustic and Optical Imaging of Crustacean Macrozooplankton

小行星9421876 这一海洋科学技术开发项目继续开发三维声纳成像系统，用于浮游动物动力学和生态研究。 将着手制造一个光声潜水成像系统，该系统将能够跟踪浮游动物的昼夜周期、迁移和夜间活动模式。 这些行为数据将有助于模拟现实环境条件下的捕食者-猎物遭遇，磷虾生物能量学和昼夜垂直迁移行为。 该系统将可从遥控水下航行器部署，并将同时记录目标强度（声学）和高分辨率光学图像。 这一综合技术将有助于核实声学勘测信息，并可对过去和现在的数据进行外推。 声学后向散射将与动物的方向和这种关系，以及其他光学验证的相关性，将允许更好地解释原位声学数据。 声学系统已成功部署。 还完成了对摄像成像系统的有限试验。 本工作将这两种系统联合收割机结合起来。 光学系统将在声纳成像系统触发的频闪模式下操作。 这样，当在声纳图像中的适当位置发现目标时，将触发闪光灯，并记录光学图像。

9421876 Jaffe This ocean sciences technology development project continues development of a 3-dimensional sonar imaging system to be used in zooplankton dynamics and ecological research. Work will be undertaken to fabricate an Optical-Acoustic Submersible Imaging System (OASIS), that will allow tracking of zooplankton diel cycles, migrations and nocturnal activity patters. These behavioral data will help to model predator-prey encounters, euphausiid bioenergetics, and diel vertical migration behavior under realistic environmental conditions. The system will be deployable from a remotely-operated underwater vehicle and will simultaneously record both the target strength (acoustic) and a high resolution optical image. This combined technique will help verify acoustic survey information and allow extrapolation of past and present data. Acoustical backscattering will be correlated to animal orientation and this relationship, as well as other optically verified correlations, will permit a better interpretation of in situ acoustic data. The acoustic system has been deployed successfully. Limited trials with camera imaging systems have also been completed. This work combine these two systems. The optical system is to be operated in a strobe mode, triggered from the sonar imaging system. In this way, when a target is found in the sonar image at the appropriate location, the strobe light will be triggered, and an optical image will be recorded.