Handheld tool and method for measuring mytilus coruscus gould

Abstract

The invention discloses a handheld tool and a method for measuring mytilus coruscus gould. A measuring body is arranged on the upper portion of the integrally T-shaped handheld tool, and a handle is arranged on the lower portion of the handheld tool and is fixedly connected with the measuring body. The handheld tool is characterized in that an LED display screen is arranged on the front surface of a main shell, four bulbs are arranged at four corners of the back surface of the main shell, a miniature camera is arranged in the center of the back surface of the main shell, a sonar receiving and transmitting device is further mounted on the back surface of the main shell, and the miniature camera is positioned in the center of the sonar receiving and transmitting device; a size measuring switch, a distance measuring switch, a light switch and an automatic monitoring switch are arranged on the front surface of a handle shell, a power switch is arranged in a side surface of the handle shell, and a battery charging hole is formed in the bottom of the handle shell; a lithium battery and a computer chip are arranged inside the handle. The handheld tool and the method have the advantages that the sizes of the underwater mytilus coruscus gould can be efficiently measured by the aid of the handheld tool, and the handheld tool can be used as an auxiliary tool for investigating and evaluating the mytilus coruscus gould in natural environments; the sizes of the mytilus coruscus gould can be easily, accurately and effectively measured by the aid of the handheld tool.

Description

technical field [0001] The invention relates to a tool and a method for measuring mussels, in particular to a hand-held tool and a method for measuring thick-shelled mussels, and belongs to the technical field of marine life protection and scientific utilization. Background technique [0002] Thick-shelled mussels are unique marine economic bivalves in the East China Sea region of my country. In nature, they are mainly distributed in Japan, North Korea and my country's Yellow Sea, East China Sea and Taiwan. Its taxonomic status belongs to the bivalves of molluscs. It is commonly known as mussels, sea reds, and shell vegetables, and it is also known as "Mrs. Donghai". Thick-shelled mussels are large in size, soft in texture, delicious in taste, and rich in polypeptides. They are one of the important dishes on the table of coastal residents and therefore also an important species caught by local fishermen. The natural distribution of the thick-shelled mussel is quite special....

AI Technical Summary

Problems solved by technology

However, the local fishermen mainly collect thick-shelled mussels by diving at present, and there is a problem: when diving, the thick-shelled mussels caught are of different sizes, and many small individuals are caught. , resulting in the lack of effective replenishment of sexually mature groups, which has caused great damage to the wild resources of thick-shelled mussels. How to quickly and efficiently allow harvesters to distinguish the individual size of the harvested objects has become a key issue for fishery administrators and fisherman's consensus

However, when harvesters are fishing underwater, their vision is not smooth, and there are errors in judging the size of individuals close to the naked eye. At present, there is no available instrument for judging the individual size of thick-shelled mussels, and it is time-consuming to rely on naked eyes. It consumes energy and affects the efficiency of harvesting. Long-term diving is also a kind of harm to the human body.

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