Trapping device for preventing and controlling alien invasive freshwater turtles and application
An alien invasion, freshwater technology, applied in applications, invasive species monitoring, fishing, etc., can solve problems such as easy killing of non-target aquatic species, dangerous chemical control methods, and destruction of aquatic ecosystems, and achieve good control effects. , the effect of low maintenance cost, high availability and durability
Inactive Publication Date: 2017-11-24
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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Problems solved by technology
[0003] The efficiency of traditional fishing methods is extremely low, and the application of chemical control methods in freshwater bodies is very dangerous, and it is easy to kill a large number of non-target aquatic species and cause damage to aquatic ecosystems
Method used
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Embodiment 1
[0027] Such as figure 1 As shown, the trapping device for preventing and controlling foreign invasion of freshwater turtles according to the present invention includes: a cage 1, a floating ring 2, a rebound roller 3, and a flap 4, wherein the top of the cage 1 is open, The floating ring 2 is fixed on the outer periphery of the top of the cage 1, and the diameter of the cage 1 is the same as the inner diameter of the floating ring 2;
[0028] The ring body of the floating ring 2 is a slope that gradually rises from the inner circumference to the outer circumference;
[0029] Such as figure 2 As shown, the rebound roller 3 includes a spring 3-1 and a shrapnel 3-2, the spring 3-1 is located inside the rebound roller 3, and the two ends of the spring 3-1 are respectively provided with shrapnel 3-2, the rebound roller 3 is installed at the midline of the inner surface of the floating ring 2, and the shrapnel 3-2 on one side is vertically fixed on the inner surface of the floati...
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The invention discloses a trapping device for preventing and controlling alien invasive freshwater turtles and application. A floating object which is roughly circular and composed of a floating ring, resilient rollers and a wood turnover board is used, the outer side of the floating object extends to the water surface gradually, a slope getting close to the water surface gradually is formed and used for attracting trapped turtles to crawl onto the wood turnover board, the wood turnover board turns downwards by 90 degrees rapidly under the action of gravity of the turtles crawling onto the wood turnover board, then the trapped turtles slide into a stainless steel net cage, escape of the trapped turtles and invasion of other medium and large aquatic organisms are prohibited through the barrel-shaped stainless steel net cage with the top open, and thus trapping of the alien invasive freshwater turtles is achieved; the resilient rollers rebound after the action of gravity of the turtles is lost, and thus recycling of the device is achieved. The device has the advantages of being high in corrosion resistance, durable, low in maintenance cost, good in prevention and control effect and the like, has high practicability and durability, is applied to alien invasive species prevention and control, environmental indicator organism monitoring, biodiversity protection study and science teaching aid markets, and has broad market prospects.
Description
technical field [0001] The invention relates to the field of scientific and educational equipment, in particular to a trapping device for preventing and controlling alien invasion of freshwater turtles and its application. Background technique [0002] my country is one of the countries most seriously affected by invasive alien species in the world. Invasive alien freshwater turtles have been identified as the main invasive alien species in wetland ecosystems in my country. [0003] The efficiency of traditional fishing methods is extremely low, and the application of chemical control methods in freshwater bodies is very dangerous, and it is easy to kill a large number of non-target aquatic species and cause damage to aquatic ecosystems. [0004] The invention relates to a trapping device for preventing and controlling foreign invasive freshwater turtles and its application, which can effectively trap foreign invasive freshwater turtles, thereby realizing the prevention and...
Claims
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IPC IPC(8): A01K69/02
CPCA01K69/02Y02A90/40
Inventor 徐海根马方舟丁晖卢晓强刘立胡飞龙李佳琦陈萌萌周旭
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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