CN217012328U - Novel artifical sea grass bed - Google Patents

Abstract

The utility model relates to a novel artificial seaweed bed, and belongs to the field of marine ranch equipment. The bed body is of a cuboid structure and is composed of heavy ropes and 12 pieces of artificial sea grass, the artificial sea grass is arranged in a 3 x 4 matrix, floats are tied at the tops of the artificial sea grass, the bottoms of the artificial sea grass are connected with the heavy ropes, and nodes on two sides are connected with anchors through anchor ropes to play a role in fixing; the bed body installation direction is vertical to the water flow direction. The utility model has small investment and is an environment-friendly fish reef; the seabed condition does not need to be considered, and the device is particularly suitable for soft seabed substrate; because of the floating, the bed body can be directly thrown away without worrying about the turnover of the bed body, thereby saving time and labor. The utility model can be widely applied to the artificial fish reef occasions. The utility model can provide places for the propagation, growth and inhabitation of marine organisms in the lower layer of the ocean, has large range of related water areas, and is beneficial to large-range ocean ecological restoration.

Description

Novel artificial seaweed bed

Technical Field

The utility model belongs to the technical field of artificial fish reefs, and relates to a novel artificial seaweed bed, in particular to a seaweed bed type artificial fish reef suitable for sludge substrate.

Background

Since the approval of the demonstration area of the first national-grade marine ranch of China at the end of 2015, the construction industry of the marine ranch of China enters a new development period. The artificial fish reef is put in the habitat construction stage of the marine ranch construction. The artificial fish reef is an underwater structure artificially arranged in the sea, can affect the adjacent physical and chemical environment and biological environment, and plays roles in protecting and proliferating the yield of fish, flourishing leisure fishery activities, reducing coastal erosion and the like.

The traditional artificial fish reef main body is located on a hard rock seabed covered by fine sand on a shallow layer. The artificial fish reef is built on clay, silt and loose sand, so that great difficulty is caused, the bed body can be integrally settled after being thrown, and finally the bed body is silted and buried.

In recent years, the technology and process for building the artificial fish reef are mature, and researchers at home and abroad also study the material of the artificial fish reef, and the material selection is developed from initial mao bamboo, stone materials, waste tires and the like to novel materials such as later concrete frames, waste ships and vehicles, and latest steel materials or shells, HDPE and the like. However, the fish reefs or structures built by the materials are complex, or the requirements of preparation processes are high, or the cost is high, the use is inconvenient, and the management cost is high.

At present, artificial fish reefs are directly thrown in, marine organisms are naturally developed on the artificial fish reefs, the development speed of the artificial fish reefs is directly related to the contact area of a bed body and water flow, long-time accumulation is needed, the artificial fish reefs can have the same effect and function as the natural fish reefs, and the artificial fish reefs are not beneficial to rapid development.

In order to solve the problems, the sea grass bed type artificial fish reef suitable for the sludge substrate is designed at present, is mainly made of polyethylene, is light and soft in bed body, is not easy to corrode, is easy to put in, can adapt to various seabed conditions, particularly to the seabed with the sludge substrate, and effectively saves the manufacturing and maintenance cost. In addition, the bed body is mainly composed of artificial sea grass, so that the contact area of the bed body and water flow is greatly increased, and marine organisms are quickly attached to the artificial sea grass.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel artificial seaweed bed to solve the problems in the background technology.

In order to realize the purpose, the utility model adopts the following technical scheme:

a novel artificial seaweed bed comprises a bed body part and a fixed bed body position part, wherein the bed body comprises heavy ropes and artificial seaweed arranged on the heavy ropes, the bed body is of a cuboid structure and is provided with 12 pieces of artificial seaweed and is arranged in a 3 x 4 matrix, the tops of the artificial seaweed are tied with floats, the bottoms of the artificial seaweed are connected with the heavy ropes, and the heavy ropes are arranged in a 'yue' shape;

the bottom of the artificial seaweed is U-shaped and is connected with the artificial seaweed by bypassing the heavy rope, and the U-shaped opening is ligated by a steel wire;

the two ends of the heavy rope are U-shaped, are connected in a pairwise crossing manner, and are tied by steel wires at the U-shaped openings;

the part of the fixed bed body is composed of an anchor rope and an anchor sinking to the sea bottom, one end of the anchor rope is tied at the position of the heavy rope node, and the other end of the anchor rope is connected with the anchor of the sea bottom.

In the technical scheme, the artificial seaweed is formed by weaving a plurality of extremely fine plastic ropes on a thick main rope, so that the contact area between the bed body and water flow is greatly increased, and the nutrient substances and plankton carried in the water flow are attached to the artificial seaweed when the water flow passes through the artificial seaweed. The size of the artificial sea grass can be automatically adjusted according to the actual seawater throwing depth.

In the above technical scheme, the float is a foam floating ball made of plastic material, or is replaced by a conventional floating ball. The float mainly plays a role in floating, and is connected with the artificial seaweed through the buoyancy effect of the float in water so as to vertically pull the artificial seaweed in the water body.

Among the above-mentioned technical scheme, the steel wire, for stainless steel's steel wire, adopt the mode coupling assembling of ligature.

In the above technical scheme, the artificial seaweed main rope, the heavy rope and the anchor rope are made of anti-corrosion ropes or palm ropes, and are more than two strands of braided and twisted ropes. The rope needs to be made of seawater immersion and corrosion resistant materials, and has the characteristics of tensile resistance, difficult deformation and the like.

In the technical scheme, the bed bodies are arranged at equal intervals and are integrally arranged in a shape like a Chinese character 'tian', and the bed bodies are perpendicular to the water flow direction.

In the technical scheme, the anchor is an auxiliary facility, and the material, specification, shape and the like of the anchor can be selected according to local conditions.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model mainly uses polyethylene materials, is not easy to corrode and easy to put in, can adapt to various seabed conditions, particularly seabed with sludge substrate, and effectively saves the manufacturing and maintenance cost.

2. The utility model can provide places for breeding, growing and inhabiting marine organisms, particularly marine organisms on the lower layer, can improve the seabed environment, has influence on the adjacent physical and chemical environment and biological environment, and plays roles in protecting and proliferating fish yield, flourishing leisure fishery activities and reducing coastal erosion.

3. The artificial fish reef mainly comprises artificial sea weeds, is beneficial to enabling benthos to stay on the artificial fish reef for a long time, increases the biological diversity on the fish reef, accelerates the evolution of the artificial fish reef, enables the artificial fish reef to become a natural fish reef, is beneficial to the multiplication of fish yield and changes the ecological environment.

Drawings

FIG. 1 is a schematic structural view provided by the present invention;

FIG. 2 is a schematic view of the structure of the artificial seaweed;

FIG. 3 is a schematic top view (FIG. 3a) and a cross-sectional view (FIG. 3b) of the heavy rope;

FIG. 4 is a schematic view of 3 connection modes of the ropes, wherein FIG. 4a is a schematic view of the connection of anchor ropes at two sides of a bed body and the connection of the tail end of artificial seaweed with a heavy rope, FIG. 4b is a schematic view of the connection of anchor ropes at the corners of the bed body and the connection of the tail end of artificial seaweed with the heavy rope, and FIG. 4c is a schematic view of another connection of the tail end of artificial seaweed with the heavy rope;

fig. 5 shows the number of occurrences (tails) of bastes schlegeli in an artificial seaweed bed;

fig. 6 shows the average occurrence rate (%) of bastes schlegeli in artificial seaweed bed.

Wherein: 1, a bed body; 2, artificial seaweed; 3, floating; 4, rope weight; at node 5; 6, anchoring a rope; 7, anchoring; 8, lead core; 9 winding the wire; 10 steel wires; 11 artificial seaweed ends.

Detailed Description

The utility model is further illustrated with reference to specific embodiments. Unless otherwise specified, the technical means used in the present invention are well known to those skilled in the art. In addition, the embodiments should be considered illustrative, and not restrictive, of the scope of the utility model, which is defined solely by the claims. It will be apparent to those skilled in the art that various changes or modifications can be made in the components and amounts of the materials used in these embodiments without departing from the spirit and scope of the utility model.

Example 1:

the utility model relates to a novel artificial seaweed bed, as shown in figure 1;

the utility model comprises a bed body part and a part for fixing the position of the bed body, wherein the bed body comprises a heavy rope 4 and artificial seaweed 2 arranged on the heavy rope 4. The bed body 1 is of a cuboid structure, 12 pieces of artificial seaweeds arranged on the heavy ropes 4 are arranged in a 3 multiplied by 4 matrix, the tops of the artificial seaweeds 2 are tied with floats 3, the bottoms of the artificial seaweeds are connected with the heavy ropes 4 with density larger than that of water, and the heavy ropes 4 are arranged in a 'ri' shape;

the artificial seaweed 2 is formed by weaving a plurality of extremely fine strings into a main rope, and is formed by weaving and twisting more than four strands as shown in figure 2;

the heavy cord 4 is woven around an internal lead 8, as shown in fig. 3, the lead 8 being a thin lead strip; the two ends of the heavy rope 4 are U-shaped, are crossed pairwise, and the U-shaped openings are tied by steel wires as shown in figure 4 b;

the bottom of the artificial seaweed is U-shaped and connected with the heavy rope by bypassing the heavy rope, and the U-shaped opening is ligated by a steel wire 10, as shown in fig. 4 a-4 c; wherein, fig. 4c shows the connection mode of arranging the artificial seaweed 2 on the straight rope section of the heavy rope 4, the connection is that the tail end 11 of the artificial seaweed is U-shaped and bypasses the straight section of the heavy rope 4 to be connected with the straight rope section, and the U-shaped opening at the bottom of the artificial seaweed is ligated by a steel wire 10.

The part of the fixed bed body position is composed of an anchor rope 6 and an anchor 7 sinking to the sea bottom, one end of the anchor rope 6 is tied to the node 5 of the heavy rope 4, and the other end of the anchor rope is connected with the anchor 7 of the sea bottom.

According to the novel artificial seaweed bed, the bed body 1 is of a cuboid structure and is composed of 12 pieces of artificial seaweed 2, and a certain gap is reserved between the artificial seaweed 2; the artificial seaweed 2 is formed by weaving a plurality of extremely fine plastic ropes on a thicker main rope, so that the contact area between the bed body 1 and water flow is greatly increased, and nutrient substances and plankton carried in the water flow are attached to the artificial seaweed 2 when the water flow passes through.

In the utility model, the top of the artificial seaweed 2 is provided with a float 3, so that the artificial seaweed is kept in a vertical state in water;

in the utility model, the bottom part adopts the heavy rope 4 which can adapt to various seabed conditions;

in the utility model, the steel wire 10 at the node 5 is made of stainless steel and plays a role of a connecting component;

in the utility model, the artificial seaweed 2, the heavy rope 4 and the anchor rope 6 are made of anticorrosion ropes or palm ropes.

In the utility model, the bed bodies can be arranged at equal intervals and are integrally arranged in a 'field' shape, and the bed bodies are all vertical to the direction of water flow.

Example 2:

the utility model relates to a novel artificial seaweed bed which is used for the proliferation and maintenance of marine fishery resources, creates a good habitat for marine organisms and improves the fishery resource amount in an area. The specific operation is as follows:

(1) a simulation method is adopted to carry out a fish collecting effect experiment of the novel artificial sea grass bed in an indoor culture water pool, the specification of the water pool is 6m multiplied by 4m multiplied by 1.4m, and the water depth is 1.0-1.2 m. Purified seawater is taken as experimental water, and is used after being filtered and added with a flocculating agent.

(2) Sebastes schlegelii (Sebastes schlegelii) is selected as an experimental object, fish is temporarily cultured in a water pool before the experiment, and the fish is fed with compound feed during the temporary culture. When the fry is cultured, the fish reef model is placed in the culture pond in advance to be adaptive to the environment, so that the stress reaction at the beginning of the experiment is avoided. At the time of the experiment, 30 healthy fish were selected per pond for the experiment.

(3) Four pools were used, with 1 experimental group and 1 control group. Put novel artifical sea grass bed in pond central authorities during the experiment, utilize two underwater cameras of putting relatively and the high definition digtal camera in unsettled central authorities pond to record a video in order to observe the activity action of fish. A pool top fluorescent lamp is used to provide illumination. The experimental shooting time is 8:00-11:00, 14: 00-17:00, and extracting images from each video every 1min for processing. In order to avoid the influence of light on the reef tendency of fishes, a fluorescent lamp is hung above a fish pond as a light source in the experiment, and natural illumination is shielded by a tarpaulin cover.

The fish gathering effect is expressed by the percentage of the total number of the test fish appearing in the shooting area to the total number of the test fish appearing in the reef, namely the average occurrence rate (P):

in the formula, n_iThe number of fish in the area in the ith shooting is the mantissa of the fish in the area, N is the shooting frequency, and N' is the total mantissa of the thrown fish. The fish-gathering effect of the experimental group and the control group was compared therewith (FIG. 5). The result shows that the average occurrence rate of Sebastes schlegeli in the reef area of the novel artificial sea grass bed related to the utility model can reach 34.4%, which is obviously better than that of a control group (fig. 6, 1.30%).

According to the experimental simulation results, the novel artificial seaweed bed has a good fish collecting effect, can provide places for breeding, growing and inhabiting marine organisms in the lower layer of the sea, is low in cost, and is beneficial to large-scale marine ecological restoration.

Claims (8)

1. A novel artificial seaweed bed is characterized in that: the sea-grass sea-grass sea-grass sea-grass sea-sea bed comprises a bed body (1) and sea-grass-sea-grass-sea-grass-sea-grass-sea grass sea-sea grass sea-grass sea-sea grass sea-grass sea-sea.

2. The novel artificial sea grass bed according to claim 1, characterized in that: the bed body (1) is of a cuboid structure, is provided with 12 pieces of artificial seaweeds (2) and is arranged in a 3 multiplied by 4 matrix, the tops of the artificial seaweeds are tied with floats (3), the bottoms of the artificial seaweeds are connected with heavy ropes (4) with density larger than that of water, and the heavy ropes (4) are arranged in a 'ri' shape.

3. The novel artificial seaweed bed according to claim 1, characterized in that: the bottom of the artificial seaweed (2) is U-shaped and bypasses the heavy rope to be connected with the heavy rope, and the U-shaped opening is tied by a steel wire (10); the two ends of the heavy rope (4) are U-shaped, the ropes are connected with each other at the tail ends of the U-shaped ropes in a crossed mode, and the U-shaped opening is tied up through a steel wire (10).

4. A novel artificial sea grass bed according to claim 1 or 3, characterized in that: the heavy rope (4) comprises a lead core (8) and a winding wire (9) outside the lead core (8), and the winding wire (9) is woven around the inner lead core (8).

5. The novel artificial seaweed bed according to claim 1, characterized in that: a certain gap is left between the artificial seaweeds (2) forming the matrix.

6. The novel artificial seaweed bed according to claim 1, characterized in that: the artificial seaweed (2) is formed by weaving a plurality of superfine thin ropes on a thicker main rope, the thin ropes are formed by cutting PP plastic films, and feather-shaped fibers extend from two sides of a rope core.

7. The novel artificial seaweed bed according to claim 2, characterized in that: the float (3) is a foam floating ball made of plastic materials, or is replaced by a conventional floating ball.

8. The novel artificial sea grass bed according to claim 4, wherein: the bed bodies (1) and the bed bodies (1) are arranged at equal intervals, the whole bed bodies are arranged in a shape like a Chinese character 'tian', and the bed bodies (1) are all vertical to the water flow direction.

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