基于蓝紫色光带引导的海龟逃逸兼捕减少装置

Abstract

本实用新型公开了一种基于蓝紫色光带引导的海龟逃逸兼捕减少装置。该兼捕减少装置包括网囊(1)，所述网囊的尾端处具有取鱼部(15)，所述网囊开设有大逃逸口(11)和防逃逸口(12)，所述大逃逸口和防逃逸口均设置在网囊本体的上部位置，在大逃逸口处设置有引导栅栏(13)，该引导栅栏横隔在网囊中并且呈倾斜状；所述兼捕减少装置还设置有蓝紫色光带(16)。本实用新型的兼捕减少装置中设置有蓝紫色光带，利用大型水生物对蓝紫色波段光线的敏感性，实现引导逃逸，从而减少水生物缠网停留时间，进而避免了兼捕个体受伤或死亡概率上升的情况。

Claims

1. A turtle escape and catch reduction device based on blue-violet light band guiding, characterized in that: The bycatch reduction device includes a net bag (1), which has a fish-catching part (15) at its tail end. The net bag (1) has an escape port (11) and an escape prevention port (12). The escape port (11) and the escape prevention port (12) are both located at the upper part of the net bag (1). A guide fence (13) is provided at the escape port (11). The guide fence (13) is horizontally spaced in the net bag (1) and is inclined. The bycatch reduction device is also provided with a blue-purple light strip (16).

2. The turtle escape and depletion reducing device based on blue-violet light band guiding according to claim 1, characterized in that: The blue-purple light band (16) is set on both sides of the internal channel of the combined capture and reduction device or near the inlet.

3. The turtle escape and depletion reducing device based on blue-violet light band guiding according to claim 1, characterized in that: The main escape opening (11) is triangular, and the anti-escape opening (12) is square.

4. The turtle escape and depletion reducing device based on blue-violet light band guiding according to claim 1, characterized in that: The escape prevention port (12) is equipped with a square mesh.

5. The turtle escape and depletion reducing device based on blue-violet light band guiding according to claim 1, characterized in that: The large escape port (11) is close to the inlet of the net bag (1).

6. The turtle escape and depletion reducing device based on blue-violet light band guiding according to claim 1, characterized in that: A surveillance camera (14) is installed at the escape vent (11).

7. The turtle escape and depletion reducing device based on blue-violet light band guiding according to claim 1, characterized in that: A pressure sensor is installed at the connection between the guide fence (13) and the inner wall of the mesh bag (1).

8. The turtle escape and depletion reducing device based on blue-violet light band guiding according to claim 1, characterized in that: The guide fence (13) is made of polyethylene.

9. The turtle escape and depletion reducing device based on blue-violet light band guiding according to claim 1, characterized in that: An infrared sensor is installed at the escape port (12).

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