With the advancement of science and technology, the fishing harvest processes have experienced a lot of change. The sonar fish detecting procedure is a modern process to locate fish shoals. Sonar is a modern method that helps to find out the deep water submarines, wrecks and other objects that are present underwater. The main factors that affect the working of the sonar system are an efficient transducer, high power transmitter, acoustic communication systems and sensitive receiver. Most of the large fishing companies do use this process to catch huge shoal of fish, thus reducing carbon footprints and wastage due to bad fish catching.
How the sonar works-
The term “sonar” means sound, ranging or navigation. It is one of the modern technologies that were previously developed as the way of tracking enemies during the World War 2. The sonar system consists transducer, receiver, display and transmitter. Here, in the process, an electric impulse from the transmitter, converted in the sound waves by the transducer and sent in the water. When the impulse hit the object underwater, it rebounds and is detected. The echo strikes the transducer that converts the echo into an electric signal which is then amplified by the receiver and projected on the LCD screen.
Companies like China Fishery make use of state-to-art fleet finding and management techniques by the help of latest sonar fish finding technology along with the support vessel that facilitates at-sea fish processing and shipment of fish products. Sonar fish detecting procedure increases the efficiency of fleet operations, lower the implementation of manpower and fuel consumption that is required in the distribution of the seafood across the international markets. This indirectly reduces the carbon footprint of the fishing operations.
How you find the fish-
Sound always travel indifferent speeds in different mediums. The flesh of the fish is mostly comprised of water, the difference between the speed in the water ad in the gas n the fish’s swim bladder is good, that most of the energy is reflected back. The function of the swim bladder of the fish is that it enables the fishes to remain floating without swimming rising. The signals, when reflect back from the swim bladder of the fish, is then detected by the fishermen. Thus, sonar is very useful in detecting large shoal of fish species without leaving carbon footprints.
As discussed above, China Fishery makes use of this procedure to harvest fish. It is being operated in Namibia from the year 2012. Within the short period of time, this company gets the access to catch 10% of the horse Mackerel.