CN218163987U - Maze type sepiella maindroni oviposition device - Google Patents

Abstract

The utility model relates to the technical field of mariculture, and discloses a labyrinth-type needleless cuttlefish spawning device, which includes a frame structure, and the frame structure includes a main structure; the main structure includes a plurality of single-layer frames distributed from inside to outside ; Each single-layer frame has multiple sides, each side is fixed with several ropes, and the sides of each single-layer frame are composed of a plurality of sparsely arranged surfaces and a plurality of densely arranged surfaces; the ropes in the sparsely arranged surfaces The distance between the ropes is not less than the body width of the squid, and the distance between the ropes in the close-packed surface is smaller than the body width of the squid; in each single-layer frame, the space between the sparsely-arranged surface and the densely-arranged surface is distributed; multiple single-layer Between the layer frames, from inside to outside, sparsely arranged surfaces and densely arranged surfaces are distributed at intervals. The device can not only provide a place for spawning, shelter, and hatching for the squid, but also improve the ecological environment of the substrate. At the same time, it can prevent the trawling operation from entering and destroying the substrate, and play a role in restoring and protecting the resources of the squid. Effect.

Description

A labyrinth-type needleless cuttlefish spawning device

technical field

The utility model belongs to the technical field of mariculture, in particular to a labyrinth-type needleless cuttlefish spawning device.

Background technique

Mansoni squid, commonly known as cuttlefish and squid, is widely distributed in the coastal areas of China, the Far East Sea of Russia, the Seto Inland Sea of Japan, and the southwestern coast of Korea. It was once one of the traditional "four seafood" in the East my country Sea fishing grounds. However, due to overfishing, destruction of the marine environment and other reasons, its resources have declined sharply. In order to restore the resources of squid mansoni, Chinese aquatic scientists have carried out research on the artificial breeding of squid mansoni. At present, there are many mature technical means that can be artificially cultivated on land, and then adult or juvenile or fertilized eggs Put it back into the sea, such as Chinese Patent Publication No. CN204119997U, the announcement date was January 28, 2015, and the name is "a device for releasing fertilized eggs of a needleless cuttlefish", which discloses a method for fixing, protecting and initial hatching of fertilized eggs. Larvae get a short-term protection space to increase the hatching rate of fertilized eggs and the survival rate of newly hatched larvae. But the device doesn't promote squid spawning in the ocean, and a healthy cycle of species remains elusive. According to relevant research, it is found that squid mansoni prefers to lay eggs on the attachment base with a diameter of less than 7mm. If there is no suitable attachment base, the broodstock will not spawn or delay spawning. In the previous natural environment, gorgonian corals were the preferred attachment bases of squid. However, due to the destruction of the ocean bottom, the reduction of marine plants affected the spawning efficiency of squid. It is exposed to threats from natural enemies.

Utility model content

Aiming at the problem that the prior art lacks a device capable of promoting the spawning of squid in the ocean, the utility model provides a labyrinth-type spawning device for squid, which can provide a spawning device for squid. The attachment base, shelter, and hatching place can improve the ecological environment of the substrate, and at the same time prevent trawling operations from entering and destroying the substrate, thereby restoring and protecting the resources of the squid.

The concrete technical scheme of the utility model is:

The utility model provides a novel needleless cuttlefish spawning device, which includes a frame structure, and the frame structure includes a main structure; the main structure includes a plurality of single-layer frames distributed from inside to outside; each of the The single-layer frame has multiple sides, each side is fixed with some ropes, and each side of the single-layer frame is composed of a plurality of sparsely arranged surfaces and a plurality of densely arranged surfaces; in the sparsely arranged surfaces The distance between the ropes is not less than the body width of the squid, and the distance between the ropes in the densely arranged surface is smaller than the body width of the squid; in each single-layer frame, the sparsely arranged surface and the densely arranged surface are distributed at intervals; Between multiple single-layer frames, from inside to outside, sparsely arranged surfaces and densely arranged surfaces are distributed at intervals.

In this scheme, the labyrinth structure composed of the frame structure and densely arranged ropes not only makes the path that the squid needs to pass through when entering and exiting the whole device longer, but also increases the time it stays and provides favorable conditions for its spawning , and can help it resist the threat of natural enemies, and provide a place for squid to lay eggs and inhabit as a whole.

As preferably, the rope interval of the sparsely arranged surface is 80-120mm, the rope interval of the densely arranged surface is 20-40mm, and the adult cuttlefish body width is generally at 50mm, so setting the interval can better increase its residence time, The effect of increasing the chance of spawning.

Preferably, the spawning device for squid mansoni also includes a base, and the base is provided with one or more hollow pipes for the passage of squid mansoni, and the outside of the base is connected to the frame structure through the hollow pipes. internal connectivity.

Preferably, the base is further provided with a hole for the passage of the squid, and the hollow pipe communicates with the inside of the frame structure through the hole.

Preferably, the hollow pipe is a hollow circular tube, and the diameter of the circular tube is not less than the body width of the needle-free cuttlefish; the hole is in the shape of a cube, and the edge length of the cube hole is not less than the body width of the needle-free squid. .

Preferably, the inner diameter of the hollow circular tube is 100-150 mm, and the edge length of the cubic hole is 100-150 mm.

Holes and pipes not only increase the circulation of the base, but also facilitate the feeding and passage of squid, and also reduce the amount of concrete used to save costs.

Preferably, the frame structure further includes a top cover arranged above the main structure, the top cover has multiple sides, each side is fixed with a number of ropes, and the distance between the ropes is smaller than the body width of the squid.

Preferably, the top cover also includes a top surface, which is square, and the side length of the top surface is smaller than the body width of the squid.

Preferably, the distance between the ropes on each side of the top cover is 10-40mm, and the side length of the square top surface is 20-50mm.

The design of the top cover has not only increased the squid's certain activity space and the attachment base for laying eggs, but also can prevent the squid from leaving directly from the top.

Preferably, the diameter of the rope is 5-7mm, which is similar to the attachment base conditions that cuttlefish like to lay eggs, so as to further promote their laying eggs and improve the laying efficiency.

Compared with the prior art, the utility model has the following advantages:

(1) The device of this utility model provides a new device for improving the efficiency of squid spawning in a natural state, so that the outer squid cannot directly reach from the outside to the inside, and the squid entering the innermost hole from the bottom hole cannot directly cross to the innermost Outside, the residence time of the squid is increased, and the prolongation of the residence time increases the probability of spawning, and at the same time provides help for it to avoid predators, and provides a place for squid to lay eggs and inhabit on the whole, so that it can gradually restore normal natural circulation;

(2) The spawning device of this utility model is mainly composed of a stainless steel frame and a concrete base, which can not only ensure its durability, but also achieve a low center of gravity and high stability as a whole, so that it is not easy to be carried by the water flow on the seabed. Go, the stability is high enough. At the same time, the hollows and pipes in the lower part increase the circulation, which is conducive to the feeding and passage of squid, and also reduces the amount of concrete used, saving costs;

(3) After the mold is finished, the device can be mass-produced quickly and assembled on the road, which facilitates the placement process;

(4) Because the frame structure of this device is strong enough, it can also prevent trawling operations from entering and destroying the substrate. Combined with fishery biological resource protection areas and effective management, it can help improve the seabed ecological environment.

Description of drawings

Fig. 1 is a kind of overall structure schematic diagram of the utility model;

Figure 2 is a schematic diagram of the arrangement of the ropes.

The reference signs are: frame structure 1, main structure 2, single-layer frame 3, sparse arrangement surface 3a, close arrangement surface 3b, rope 4, base 5, hollow pipe 6, hole 7, top cover 8.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

Example 1

In Fig. 2, the lateral direction is the side expansion of the same single-layer frame, and the vertical direction is the same side expansion of multiple single-layer frames.

As shown in Figure 1 and Figure 2, a labyrinth-type needleless cuttlefish spawning device includes a cuboid base 5, four hollow pipes 6 located inside the base, a frame structure 1 connected to the base, and a fixed base. Several ropes 4 on the frame structure. The cuboid base 5 is made of concrete, and its size is 1000mm in length, 1000mm in width and 150mm in height. The center of the back-shaped rectangular parallelepiped base 5 is a cube hole 7 with a length of 150mm hollowed out, and its six faces are respectively parallel or coincident with six faces of the rectangular parallelepiped base 5 . At the center of the four horizontal parallel planes of the cuboid base 5 and the cube hole 7, four hollow pipes 6 are placed on the vertical parallel planes. The material used is PVC material, and the hollow pipes are hollow circular pipes with an inner diameter of 110mm and a length of 425mm.

The frame structure 1 which is pre-embedded in the cuboid base 5 and fixed on it is composed of the main structure 2 and the top cover 8, and the materials used are all corrosion-resistant stainless steel bars with a diameter of 10mm. The main structure 2 is composed of three single-layer frames 3 from the inside to the outside. The specific dimensions of the cuboid frame from the inside to the outside of the lower part of the single-layer frame 3 are that the inner layer of the cuboid frame is 400mm long, 400mm wide, and 800mm high; The cuboid frame is 600mm long, 600mm wide, and 800mm high; the outer cuboid frame is 800mm long, 800mm wide, and 800mm high. The heights of the three rectangular frames here are all visible heights. In fact, an extra section needs to be embedded in the concrete base below the four corners of the lower part of the frame for connection and fixation, and the same is used between the three cuboids. The steel bars made of different materials are welded and connected in turn at the corners to form a whole. The top cover 8 adopts a trapezoidal body frame, and its upper and lower sides are two parallel squares centered on a vertical line. The size of the upper square is 50mm*50mm, the size of the lower square is 800mm*800mm, and the height of the trapezoidal frame is 250mm. .

There are some ropes 4 vertically pulled from the top to the bottom on the front, rear, left, and right sides of each single-layer frame 3 and top cover 8, and the ropes used are made of hemp rope, and the diameter is 7mm. All use 19 ropes on the front, rear, left, and right sides of the trapezoidal body frame top cover 8, and the average interval from the bottom is 40mm, and one root is evenly obliquely pulled to the top along the plane, so that it is also evenly distributed on the top. On the front, back, left, and right sides of each single-layer frame 3, the sparsely arranged surfaces 3a and the densely arranged surfaces 3b are arranged at intervals, and the same surface of the inner and outer frames is also arranged at intervals according to the sparsely arranged surfaces 3a and the densely arranged surfaces 3b. Three ropes are used on the front and rear sides of the inner cuboid frame, with an average interval of 100mm from the bottom, and one is pulled vertically to the top. Nine ropes are used on the left and right sides, with an average interval of 40mm from the bottom. Pull the root vertically to the top. 14 ropes are used on the front and rear sides of the middle layer cuboid frame, with an average interval of 40mm from the bottom, and one by one is pulled vertically to the top, and 5 ropes are used on the left and right sides, with an average interval of 100mm from the bottom. Pull vertically to the top. 7 ropes are used on the front and back sides of the outer cuboid frame, with an average interval of 100mm from the bottom, and one by one is pulled vertically to the top. 19 ropes are used on the left and right sides, with an average interval of 40mm from the bottom. Pull the root vertically to the top. The overall device is in the shape of a labyrinth.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any simple modifications, changes and equivalent structural transformations made to the above embodiments according to the technical essence of the present utility model still belong to The scope of protection of the technical solution of the utility model.

Claims (10)

1. A labyrinth-type needleless cuttlefish spawning device, characterized in that it includes a frame structure (1), and the frame structure (1) includes a main structure (2); the main structure (2) includes a A plurality of single-layer frames (3) distributed to the outside; each of the single-layer frames (3) has multiple sides, each side is fixed with a number of ropes (4), and each of the single-layer frames The sides of (3) are composed of a plurality of sparsely arranged surfaces (3a) and a plurality of closely arranged surfaces (3b); the distance between the ropes (4) in the sparsely arranged surfaces (3a) is not less than that of the body of the squid. wide, the distance between the ropes (4) in the close-arranged surface (3b) is smaller than the body width of the needleless cuttlefish; in each single-layer frame (3), the sparsely-arranged surface (3a) and the densely-arranged surface (3b) Interval distribution; between multiple single-layer frames (3), from inside to outside, sparsely arranged surfaces (3a) and densely arranged surfaces (3b) are distributed at intervals. 2. A labyrinth-type needleless cuttlefish spawning device according to claim 1, characterized in that the distance between the ropes of the sparsely arranged surface (3a) is 80-120mm, and the densely arranged surface (3b) The distance between the ropes is 20-40mm. 3. A labyrinth-type needleless cuttlefish spawning device according to claim 1, characterized in that it also includes a base (5), and one or more are provided in the base (5) for feeding The hollow pipe (6) through which the needleless cuttlefish passes, and the outside of the base (5) communicates with the inside of the frame structure (1) through the hollow pipe (6). 4. A labyrinth-type squid spawning device according to claim 3, characterized in that, the base (5) is provided with a hole (7) for the passage of squid, hollow The pipe (6) communicates with the inside of the frame structure (1) through the hole (7). 5. A labyrinth-type needleless squid spawning device according to claim 4, characterized in that, the hollow pipe (6) is a hollow circular tube, and the diameter of the circular tube is not less than the body size of the squid. Wide; the hole (7) is in the shape of a cube, and the edge length of the cube hole is not less than the body width of the squid. 6 . The labyrinth-type needleless cuttlefish spawning device according to claim 5 , wherein the inner diameter of the hollow tube is 100-150 mm, and the edge length of the cube hole is 100-150 mm. 7. A labyrinth-type needleless cuttlefish spawning device according to claim 1, characterized in that, the frame structure (1) also includes a top cover (8) arranged above the main structure (2), The top cover (8) includes a plurality of sides, each side is fixed with several ropes (4), and the distance between the ropes (4) is smaller than the body width of the squid. 8. A labyrinth-type needleless cuttlefish spawning device according to claim 7, characterized in that, the top cover (8) also includes a top surface, the top surface is a square, and the side length of the top surface is less than The body width of the Mansoni squid. 9. A labyrinth-type needleless cuttlefish spawning device according to claim 8, characterized in that the distance between the ropes on each side of the top cover (8) is 10-40 mm, and the side length of the square top surface is 20 mm. -50mm. 10. A labyrinth-type needleless cuttlefish spawning device according to claim 1, characterized in that the diameter of the rope (4) is 5-7mm.

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