MRI: Development of A System for Continuously Monitoring Fish Population and Behavior over Continental Shelf-Scales with Ocean Acoustic Waveguide Remote Sensing (OAWRS)

PI正在申请资金，以开发和建造一个便携式声源阵列和处理系统，用于瞬时大陆架规模的成像和对鱼类和海洋生物的连续监测。 该技术已通过使用不再运行的双血管系统得到成功证明。 所提出的系统可以部署从一个单一的固定或移动的船舶测量丰度，人口分布，并在开放的海洋，大陆架和湖泊环境中的时间和空间的动态。 该系统将结合联合收割机的有效和可用的设计和能力，从同一船舶的低至中频有源源阵列和通用接收阵列的同时拖曳。 拟议的仪器是对现有能力的重大进步; PI指出，拟议的系统是第一个也是唯一一个能够在50公里范围内对海洋生物进行成像的便携式和拖曳式有源源系统。国家海洋渔业局）和国际（例如，秘鲁、加拿大、澳大利亚）。 在渔业资源目前因生态系统变化和资源枯竭而受到压力之际，拟议的仪器所提供的能力的重大进步将有利于科学和管理工作。

Intellectual MeritThe PI is requesting funding to develop and build a portable acoustic source array and handling system for instantaneous continental-shelf-scale imaging and continuous monitoring of fish and marine life. This technique has been successfully demonstrated through the use of a two-vessel system that is no longer in operation. The proposed system can be deployed from a single fixed or mobile vessel to measure abundance, population distributions, and dynamics in time and space in open ocean, shelf, and lake environments. The system will combine an efficient and usable design and the capability for the simultaneous tow of the low-to-mid frequency active source array and a generic receiving array from the same vessel. The proposed instrumentation represents a significant advance over current capabilities; the PIs state that the proposed system represents the first and only portable and towable active source system capable of imaging marine life at 50-km ranges.Broader ImpactsBroader impacts include significant collaborations with fisheries science and management groups nationally (e.g., NMFS) and internationally (e.g,, Peru, Canada, Australia). The significant advance in capabilities offered by the proposed instrumentation will benefit both scientific and management efforts at a time when fisheries stocks are currently being stressed by ecosystem change and stock depletion.