CN201846685U - an artificial reef - Google Patents

Abstract

The utility model relates to an artificial fish reef is suitable for marine culture device technical field. Comprises a hollow reef body with two open ends, and each surface wall of the reef body is provided with a hole for marine organisms to enter and exit. The utility model has the advantages of reasonable design, be fit for precious marine product to perch, low cost, it is safe high-efficient.

Description

an artificial reef

technical field

The utility model relates to an artificial fish reef, which is suitable for the technical field of seawater culture device structure. the

Background technique

Artificial reefs are man-made structures in the sea. Their purpose is to improve the ecology of the sea area, create a good environment for marine life to inhabit, and provide places for reproduction, growth, bait and shelter for sea treasures and fish. However, most of the existing artificial fish reefs are to sink stones, wooden boxes, discarded tires, old plastics, waste ships, etc. to the seabed, which is too simple, has poor functions, and the anti-silting effect is not ideal. the

Contents of the invention

The purpose of the utility model is to solve the shortcomings of the above-mentioned prior art, and provide an artificial fish reef with reasonable structural design, suitable for marine organisms to inhabit, low in cost, safe and efficient. the

The utility model is achieved through the following technical solutions:

An artificial fish reef, which is special in that it includes a hollow reef body 1 with openings at both ends, and holes 3 for allowing marine organisms to enter and exit are provided on each surface wall 2 of the reef body 1;

The shape of the reef 1 port is triangular;

The top of the reef body 1 is provided with two hole rings 4 for throwing reefs;

The number of the holes 3 is 2-6;

In order to improve the economic benefits of the artificial fish reef as soon as possible, a kelp nursery device 5 is bound on the reef body 1 . the

The utility model has a reasonable structural design, and when the hollow reef body with three-sided walls is impacted by wind and waves on the seabed, it can maintain the same underwater posture no matter how it rolls, and greatly increases the attachment area of marine organisms, allowing algae to grow and inhabit The area reaches more than 7m2, and the holes on the body wall are the outflow channels for the activities of marine organisms, which is beneficial to their growth and habitat. the

Description of drawings

Fig. 1: the structural representation of a kind of artificial fish reef of embodiment 1;

Fig. 2: A schematic diagram of the structure of an artificial fish reef in Example 2. the

Among the figure: 1, reef body, 2, body wall, 3, hole, 4, hole ring, 5, kelp nursery device. the

Detailed ways

The specific embodiments of the present invention are provided below with reference to the accompanying drawings, which are used to further describe the structure of the present invention. the

Example 1

A kind of artificial fish reef of this embodiment, comprises the reef body 1 that is hollow and open at both ends, and the hole 3 that is used to let marine life enter and exit is all provided on each surface body wall 2 of reef body 1; The shape of reef body 1 port is triangular ; The top of the reef body 1 is provided with two hole rings 4 for throwing reefs; the number of holes 3 is 2-6. the

Example 2

The difference between this embodiment and Embodiment 1 is that the reef body 1 is bound with a kelp seedling raising device 5 . the

What the artificial fish reef of above-mentioned embodiment adopts is that the port is an equilateral triangle with a side length of 1.6 meters, a reinforced concrete fish reef structure with a length of 1.6 meters and a body wall thickness of 0.12 meters. Each body wall is provided with 2-6 With a hole of 20cm×30cm, the fish reef of this embodiment can maintain the same underwater posture no matter how it rolls when it is impacted by wind and waves on the seabed, and the algae growth and sea treasure habitat area reach more than 7m2. the

The bottom of the artificial fish reef of the above-mentioned embodiment is put into the sea: the sea area where the fish reef is put in is outside the bottom sowing area of the existing sea treasures, no rocky reef, no algae, and the bottom is sandy bottom or sandy mud bottom sea area

Underwater arrangement of fish reefs: After the fish reefs are built on land, use a crane to lift them onto the ship, use anchors and ropes to pull up the marking lines in the reef throwing area, and follow the marking lines according to the reef spacing of 5 meters and the row spacing of 20 meters. The standard is put in, and when throwing in, the fish reef is placed against the current, that is, the face with the hole 3 is facing the seawater flow direction, which reduces the impact of currents and wind waves on the sea treasures, and is conducive to the growth and habitat of the sea treasures. the

Artificial proliferation of algae on fish reefs: After the fish reefs are placed, some algae will grow naturally after a period of time. In order to improve the economic benefits of artificial fish reefs as soon as possible, it is necessary to carry out artificial proliferation of large algae on artificial fish reefs. The method is generally as follows: 1. The kelp seedling device is used for multiplication, that is, after the kelp cultivation and seedling clamping work is completed, the kelp seedling device is used for the algae proliferation of fish reefs. The specific method is to tie the kelp seedling devices one by one on the artificial reef. The binding must be firm. After about two months, a large part of the kelp on the kelp seedling device has attached to the reef; 2. Use the attached The kelp seedling rope multiplication of spores, that is, in the mature breeding period of kelp or wakame, the vegetables are harvested and dried in the shade. After drying in the shade, the vegetables are put into a pool or sampan filled with sea water to release the spores. When the concentration of spores reaches To a certain extent, put the seedling rope soaked in seawater into the pond or sampan, after a certain amount of spores are attached to the seedling rope, take out the seedling rope and tie it firmly on the fish reef, along with the kelp or As the wakame grows up gradually, some algae will also attach and grow on the fish reef. the

The role and benefits of artificial reefs: the construction of artificial reefs increases the attachment area of algae, and also increases the habitat, growth and reproduction places for various sea treasures and fish. According to the observation of the multiplication effect in the reef area and the trial fishing, the sea cucumbers, abalones, sea urchins and other sea treasures put in the reef areas are generally growing well, without disease, and the annual weight gain of sea cucumbers is 10-15 times. After the reef is built, the algae biomass per unit of water in the reef area is 3.2 times that before the reef is not cast, the survival rate of abalone can reach 2-3 per square meter, and the sea urchin can reach 3-4 per square meter. The effect of gathering fish on the artificial reef is particularly obvious. In the same sea area, the fishing catch in the reef area per unit time is 15-20 times that of the non-reef area, and the fish quality is excellent. The recovery and growth of marine benthic organisms in reef-building areas have been significantly accelerated. the

Claims (5)

1. An artificial fish reef is characterized in that it comprises a reef body (1) which is hollow and open at both ends, and each face wall (2) of the reef body (1) is provided with holes (3) for allowing marine organisms to enter and exit . 2. A kind of artificial fish reef according to claim 1, characterized in that the shape of the port of the reef body (1) is triangular. 3. The artificial fish reef according to claim 1, characterized in that two hole rings (4) for throwing reefs are arranged above the reef body (1). 4. An artificial fish reef according to claim 1, characterized in that the number of said holes (3) is 2-6. 5. The artificial fish reef according to claim 1, characterized in that a kelp nursery device (5) is bound on the reef body (1). the

Images