Advanced Real-Time Monitoring System for Marine Net Pens: Integrating Sensors, GPRS, GPS, and IoT with Embedded Systems

Aquaculture is rapidly growing to meet the global demand for fish consumption, but it faces several challenges that adversely affect marine environments. To address these issues, economical remote-surveillance system has been developed for marine net pens, utilizing GSM, GPS modules with IoT and embedded systems technology. The goal is to create an actual time, accurate remote-surveillance system that can replace the need for frequent manual inspections by aquaculture farm workers. To overcome this, the project aims to remotely investigate aquaculture parameters such as seawater temperature, humidity, turbidity, chlorophyll, under water pressure, dissolved oxygen (DO), and pH every day, without physical visits to the pens. Ultimately, the system's objective is to enable remote control and observation of sustaining and maritime operations. The key components of the monitoring system include the fish farming enclosure monitoring station and the remote-surveillance centers. This monitoring station is equipped with intelligent water sensors to detect seawater temperature, turbidity, DO, and pH in real time. This data is collected by a remote data-collection terminal and transferred by GPRS network for online processing. The remote-surveillance centers serve as centralized servers and connect to the monitoring stations through the Internet. The seawater data collected by the particular monitoring stations is transmitted to these centers via GPRS and GSM wireless networks with the specific locations by the GPS technology, facilitating continuous monitoring and reporting. One significant challenge faced by Open-Pen Sea Cage Aquaculture is the use of fishmeal sourced from wild fisheries in the feed given to farmed fish. While alternative proteins from land-based crops are included in the feed pellets, carnivorous or omnivorous species still require some fishmeal to obtain essential amino acids. Small, oily fish such as anchovies, sardines, and pilchards, known as “Industrial Fish,” are commonly used for fishmeal. Roughly, 20 million tons of these fish are caught yearly for aquaculture, with much of Australia's sardine catch, unfit for human consumption, feeding Southern Bluefin Tuna in Port Lincoln. Relying on wild-caught fish for fishmeal raises sustainability and ecosystem impact concerns.