CN216018546U

CN216018546U - Shellfish individual growth tracking and measuring culture device

Info

Publication number: CN216018546U
Application number: CN202122297676.XU
Authority: CN
Inventors: 卢霞; 许瀚之; 王春德; 宁军号; 曹为安; 陈敏
Original assignee: Yantai Institute of Coastal Zone Research of CAS
Current assignee: Yantai Institute of Coastal Zone Research of CAS
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-15
Anticipated expiration: 2031-09-23

Abstract

The utility model belongs to the field of aquaculture, in particular to a shellfish individual growth tracking and measuring culture device.A large frame is internally provided with a plurality of small frames side by side, the small frames are sequentially connected and are respectively connected with the large frame, and a culture compartment is arranged in each small frame; the front side and the back side of the culture compartment are covered with the knotless nets, the knotless nets on the front side and the back side are respectively connected to the frames of the culture compartment, so that net bags are formed in the culture compartment in each small frame, openings for placing shellfish are formed in the tops of the net bags, locking ropes for sealing the openings are arranged at the openings, and waterproof cards for marking individual shellfish are arranged in each net bag; the top of the large frame is provided with a lifting lug A, a lifting cable A is connected to the lifting lug A, and a floating ball used for enabling the device to integrally float on the sea surface is connected to the lifting cable A. The method is convenient to operate, simple and efficient, eliminates the influence of environment and density, can give full play to the growth performance of the individual, and realizes the tracking and determination of the growth of the individual.

Description

Shellfish individual growth tracking and measuring culture device

Technical Field

The utility model belongs to the field of aquaculture, and particularly relates to a shellfish individual growth tracking and measuring culture device.

Background

Since the 21 st century, green and low carbon have become the development trend of agriculture in the future in order to alleviate global warming trend, and to cope with global problems such as increasingly severe environmental pollution and resource shortage; agriculture is an important greenhouse gas emission source, and livestock and poultry meat consumption needs to be reduced by 40% to deal with global warming climatic crisis. However, with the global population growing, the world's demand for animal proteins is increasing. Aquaculture is a more environmentally friendly, efficient way of producing high quality proteins, and therefore the vigorous development of aquaculture is one of the best ways to meet the ever-increasing protein demand. China belongs to the largest mariculture country in the world, makes full use of marine biological resources, constructs a blue granary, and is an important deployment for realizing the national food safety strategy of the new era. The marine shellfish is one of the core elements of the blue granary as an important aquatic product. The cultured shellfish accounts for 56% of the world mariculture yield, wherein the shellfish yield in China is the first in the world and accounts for 83% of the total shellfish culture yield in the world; and the carbon fixation amount of the marine cultured shellfish in China per year is up to about 100 ten thousand tons, so that the great promotion of the shellfish culture yield is imperative. At present, the improvement of the culture yield is mainly realized by enlarging the culture area and increasing the culture density, which leads to the blind enlargement of the culture area and the over-development of the culture sea area. Due to the fact that only sterile culture is carried out for a long time, severe germplasm degeneration phenomenon appears in shellfish culture, which mainly shows that the individual miniaturization and the stress resistance are poor, and the healthy development of shellfish culture industry in China is hindered. Therefore, genetic improvement of economic shellfish, improvement of culture yield and promotion of sustainable development of shellfish culture industry are urgently needed.

The growth is one of the important characters influencing the shellfish culture yield, and is an important factor influencing the shellfish survival and propagation. The growth performance is easily influenced by the environment and the breeding density, the growth performance is genetically improved, and the most important link is to obtain an accurate and objective growth performance index. When the growth performance of a single individual in a continuous growth stage is tracked and determined or the growth performance of individuals of different source groups, families, varieties and the like is compared, a similar growth environment needs to be kept, the influence of environmental and density factors is reduced to the maximum extent, and the accurate and objective determination of quantitative characters is realized. At present, the marking and measuring of shellfish are mainly divided into indoor marking culture and outdoor marking culture. The shellfish to be measured needs to be placed in a container with a specific mark for indoor mark cultivation, however, the difference between the water body environment of indoor cultivation and the water body environment of field cultivation is huge, and individuals are extremely easy to die due to the fact that the individuals are not suitable for the indoor water body environment. Secondly, large-scale cultivation containers are needed for indoor marking cultivation, a large amount of manpower and material resources are consumed, and the cost is high. Outdoor marker cultivation mainly comprises the following steps of specially marking a traditional cultivation cage, and although an individual can be ensured to be in a wild environment, the outdoor marker cultivation still has a plurality of defects, such as:

(1) the outdoor breeding cage can only carry out group marking, cannot carry out individual marking, and cannot carry out individual growth tracking and determination;

(2) the outdoor cultivation needs frequent seedling separation and cage changing treatment and dead shellfish and attachments removal, and the process can cause mechanical damage to individuals to a certain extent;

(3) the traditional cage is in a longitudinal distribution mode, so that all culture layers in the cage are positioned in water bodies with different depths, algae phases in the water bodies with different depths are greatly different under the influence of light, and filter-feeding shellfish mainly takes algae in the water bodies as food and can generate different degrees of influence on growth when living in different water layers;

(4) in the process of using the traditional cage for breeding, individuals are often stacked together due to gravity, the supply of food and oxygen for the individuals at the bottom is limited, and the growth performance of the individuals cannot be fully exerted.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the existing indoor marked culture and outdoor marked culture of the shellfish, the utility model aims to provide a shellfish individual growth tracking and measuring culture device.

The purpose of the utility model is realized by the following technical scheme:

the utility model comprises a large frame, small frames, a lifting lug A, a lifting cable A and a floating ball, wherein a plurality of small frames are arranged in the large frame side by side, the small frames are sequentially connected and are respectively connected with the large frame, and a culture compartment is arranged in each small frame; the front side and the back side of the culture compartment are covered with the knotless nets, the knotless nets on the front side and the back side are respectively connected to the frames of the culture compartment, a net bag is further formed in each culture compartment in each small frame, an opening for placing shellfish is formed in the top of each net bag, and a locking rope for sealing the opening is arranged at the opening; the device is characterized in that a lifting lug A is arranged at the top of the large frame, a hoisting cable A is connected to the lifting lug A, and a floating ball used for enabling the device to integrally float on the sea surface is connected to the hoisting cable A.

Wherein: the middle of the large frame is provided with flexible cables along the arrangement direction of the small frames, the small frames are sequentially connected in series through the flexible cables, each small frame is internally divided into an upper breeding compartment and a lower breeding compartment with the same specification through the flexible cables, and the upper breeding compartment and the lower breeding compartment are respectively provided with the mesh bags.

The bottom of the large frame is provided with a lifting lug B, and the lifting lug B is connected with a balance weight resisting seawater buoyancy and ocean current impact through a hoisting cable B.

Each small frame is connected with the large frame and the adjacent two small frames through knots.

Each mesh bag is internally provided with a waterproof card for marking the shellfish individuals.

The top of the waterproof card is provided with a notch, and the waterproof card is fixed on the frame of the culture compartment by passing through the notch through a stainless steel wire.

The large frame and the small frame are both rectangular, the length direction of the large frame and the width direction of the small frame are in the same direction, and the width direction of the large frame and the length direction of the small frame are in the same direction.

The utility model has the advantages and positive effects that:

1. the utility model can place the shellfish individual in a separate breeding compartment, greatly increase the living space and water flow of each shellfish individual, and obtain good living environment and sufficient bait.

2. Compared with the traditional three-dimensional cage, the three-dimensional cage is of a sheet-shaped plane structure, can perform efficient water flow exchange, is not easy to deposit silt and sundries, is not easy to propagate pathogenic bacteria, pathogenic microorganisms and epiphytic enemies, and does not need to be cleaned frequently.

3. The utility model can reduce the environmental pollution and germ infection of a large amount of dead shellfish to the same cage shellfish in high-density culture.

4. The utility model can reduce the cage changing times, avoid the artificial mechanical damage to the shellfish, reduce the labor and reduce the cost.

5. All shellfish individuals are in the same water layer, so that the individual growth difference caused by environmental difference is reduced.

6. The utility model has simple manufacture, easy material obtaining and better expected effect with least cost.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of a single small frame according to the present invention;

wherein: 1 is big frame, 2 is little frame, 3 is flexible hawser, 4 is the knot, 5 is the locking rope, 6 is lug A, 7 is for hanging and pulling hawser A, 8 is waterproof card, 9 is the floater, 10 is lug B, 11 is for hanging and pulling hawser B, 12 is the balance weight, 13 is the pocket, 14 is the opening, 15 is stainless steel wire.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model comprises a large frame 1, a small frame 2, a lifting lug a6, a hoisting cable a7, a floating ball 9, a lifting lug B10, a hoisting cable B11 and a balance weight 12, wherein a plurality of small frames 2 are arranged in the large frame 1 side by side, each small frame 2 is connected with the large frame 1 in sequence and is respectively connected with the large frame 1, and a culture compartment is arranged in each small frame 2; the front side and the back side of the culture compartment are covered with the knotless nets, the knotless nets on the front side and the back side are respectively connected to the frames of the culture compartment, then net bags 13 are formed in the culture compartment in each small frame 2, openings 14 for placing shellfish are formed in the tops of the net bags 13, locking ropes 5 for sealing the openings 14 are arranged at the positions of the openings 14, and waterproof cards 8 for marking individual shellfish are arranged in each net bag 13; a lifting lug A6 is arranged at the top of the large frame 1, a lifting cable A7 is connected to the lifting lug A6, and a floating ball 9 for making the whole device float on the sea surface is connected to the lifting cable A7. The bottom of the large frame 1 is provided with a lifting lug B10, and the lifting lug B10 is connected with a weight 12 resisting seawater buoyancy and seawater impact through a hoisting cable B11.

The whole body of the embodiment is formed by connecting a rectangular large frame 1 and a plurality of rectangular small frames 2, and the large frame 1 and the small frames 2 are made of polyethylene by injection molding; the length direction of the large frame 1 and the width direction of the small frame 2 are in the same direction, and the width direction of the large frame 1 and the length direction of the small frame 2 are in the same direction; the inner contour of the side frame of the large frame 1 is matched with the outer contour of the small frame 2, and the large frame 1 and the small frame 2 and the two adjacent small frames 2 are connected and fixed through knots 4 woven by polyethylene cables.

In this embodiment, a flexible cable 3 is fixed in the middle of the large frame 1 along the arrangement direction of the small frames 2 (i.e. along the horizontal direction), and the small frames 2 are sequentially connected in series through the flexible cable 3, so that each small frame 2 is divided into an upper culture compartment and a lower culture compartment with the same specification, and the upper culture compartment and the lower culture compartment are both provided with mesh bags 13. The flexible cable 3 also serves to reinforce the stability of the overall frame.

The specifications of the large frame 1 and the small frame 2 can be set according to actual needs, the specification of the culture compartment is preferably twice of the specification of adult shellfish, frequent seedling separation and cage replacement are not needed, and mechanical damage to individuals is reduced. All the culture compartments are in the same plane, so that the cultured individuals can be ensured to be in the same culture environment, and the growth difference caused by different environments is reduced to the maximum extent.

The material of the knotless net is polyethylene, and the mesh aperture of the knotless net can be selected and established according to individual varieties and conditions of individuals in different growth stages. And (3) sewing the knotless net to the frame of each culture compartment, wherein the area of the knotless net is larger than that of the small frame 2, so that a square net bag 13 is formed in each culture compartment. When only one culture compartment is arranged in the small frame 2, the frame of the culture compartment is the small frame 2, and the knotless net is sewn with the four sides of the small frame 2; when the small frame 2 is internally divided into an upper breeding compartment and a lower breeding compartment with the same specification through the flexible cables 3, the frame of the breeding compartment is the small frame 2 and the flexible cables 3, and the knotless net is sewn with the four sides of the small frame 2 and the flexible cables 3.

In the embodiment, an opening 14 is formed in the top of each mesh bag 13 and is used as an inlet for placing shellfish, and a locking rope 5 is arranged at the opening 14 and is used for closing the opening 14 to prevent individual shellfish from escaping. Compared with the traditional three-dimensional net cage, the net cage is in a sheet-shaped plane structure, each breeding compartment can obtain the most sufficient water flow exchange and bait supply, and derivatives are not easy to attach.

The waterproof card 8 of the embodiment is a PVC waterproof card marked with different colors and numbers, and is mainly used for individual marking; the top of waterproof card 8 is equipped with circular shape breach, uses stainless steel wire 15 to pass the breach and on being fixed in the frame of breed room with waterproof card 8, prevents that waterproof card 8 from dropping when transportation or sample and losing.

Four stainless steel lifting eyes A6 are arranged at the top of the large frame 1 in this embodiment, each lifting eye A6 is fixed with a lifting cable A7, the large frame is fixed on a proper cultivation facility through the lifting cable A7, and the number and the length of the lifting cables A7 can be adjusted according to actual needs. Each hoisting cable A7 is fixed with at least one floating ball 9 made of polyethylene, and the number of the floating balls 9 is increased or decreased according to the weight of the utility model, so that the utility model can float on the sea surface.

Four stainless steel lifting lugs B10 are arranged at the bottom of the large frame 1 of the embodiment, and each lifting lug B10 is fixed with a hoisting cable B11. The cement weight 12 is fixed below the hoisting cable B and mainly used for resisting the buoyancy of seawater and the impact of ocean current. The size of the weight 12 can be selected according to the sea state and the weight of the device.

The utility model is suitable for various experiments and cultivation production in fresh water and seawater environment, and especially can exert more remarkable effect on shellfish needing suspension cage cultivation, such as scallop, mussel, oyster, pinctada martensii and the like. The utility model can greatly facilitate the relevant operation process, is simple and efficient, does not need to consume a large amount of manpower and material resources, and does not need to be trained by professional techniques. The utility model can be divided into a set number of culture compartments, when in use, only the locking rope 5 at the top of the mesh bag 13 needs to be unfastened, the opening 14 is opened, and the single shellfish can be conveniently placed in the mesh bag 13 with the digital mark one by one and the digital mark is recorded. After the recording is completed, the opening 14 is tightened to prevent the shellfish from escaping. The length of the hoisting cable A7 can be adjusted according to actual needs, so that the utility model is in a set water layer and is flexible and changeable. The utility model can conveniently and continuously track and measure the growth performance of the individual at different stages and compare the growth performance of different groups, families or varieties, and each time of measurement, the corresponding breeding compartment is searched according to the mark of the individual. Meanwhile, the utility model can ensure that all individuals are in the same water layer, and the influence of culture density and environmental factors on growth performance difference is not needed to be worried about, thereby realizing the most accurate and objective growth performance measurement.

Claims

1. The utility model provides a shellfish individual growth tracking survey breeding device which characterized in that: the device comprises a large frame (1), small frames (2), lifting lugs A (6), lifting cables A (7) and floating balls (9), wherein a plurality of small frames (2) are arranged in the large frame (1) side by side, the small frames (2) are sequentially connected and are respectively connected with the large frame (1), and a culture compartment is arranged in each small frame (2); the front side and the back side of the culture compartment are covered with the knotless nets, the knotless nets on the front side and the back side are respectively connected to the frame of the culture compartment, a net bag (13) is further formed in the culture compartment in each small frame (2), an opening (14) for placing shellfish is formed in the top of the net bag (13), and a locking rope (5) for sealing the opening (14) is arranged at the opening (14); the device is characterized in that a lifting lug A (6) is arranged at the top of the large frame (1), a hoisting cable A (7) is connected to the lifting lug A (6), and a floating ball (9) used for enabling the device to integrally float on the sea surface is connected to the hoisting cable A (7).

2. The shellfish individual growth tracking measuring culture apparatus according to claim 1, characterized in that: the middle of the large frame (1) is provided with flexible cables (3) along the arrangement direction of the small frames (2), the small frames (2) are sequentially connected in series through the flexible cables (3), each small frame (2) is divided into an upper breeding compartment and a lower breeding compartment with the same specification through the flexible cables (3), and the upper breeding compartment and the lower breeding compartment are respectively provided with the mesh bags (13).

3. The shellfish individual growth tracking measuring culture apparatus according to claim 1, characterized in that: the bottom of the large frame (1) is provided with a lifting lug B (10), and the lifting lug B (10) is connected with a balance weight (12) resisting seawater buoyancy and ocean current impact through a hoisting cable B (11).

4. The shellfish individual growth tracking measuring culture apparatus according to claim 1, characterized in that: each small frame (2) is connected with the large frame (1) and the two adjacent small frames (2) through knots (4).

5. The shellfish individual growth tracking measuring culture apparatus according to claim 1, characterized in that: waterproof cards (8) used for marking shellfish individuals are arranged in the net bags (13).

6. The shellfish individual growth tracking measuring culture apparatus as recited in claim 5, wherein: the top of the waterproof card (8) is provided with a notch, and the waterproof card (8) is fixed on the frame of the culture compartment by passing through the notch through a stainless steel wire (15).

7. The shellfish individual growth tracking measuring culture apparatus according to claim 1, characterized in that: the large frame (1) and the small frame (2) are both rectangular, the length direction of the large frame (1) and the width direction of the small frame (2) are in the same direction, and the width direction of the large frame (1) and the length direction of the small frame (2) are in the same direction.