Octopus complex nest and breeding pool and application method
By designing a composite nest structure, the problems of male octopuses being easily disturbed and low mating success rates during octopus breeding were solved, achieving efficient octopus breeding and improving the space utilization rate of the breeding pond.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
- Filing Date
- 2025-04-27
- Publication Date
- 2026-07-07
Smart Images
Figure CN120167365B_ABST
Abstract
Description
[0001] This invention claims priority to the patent application filed on January 10, 2025, with application number 2025100385642 and title "A composite nest and breeding pool for octopuses and its application method". Technical Field
[0002] This invention belongs to the technical field of aquaculture facilities, specifically a composite nest and breeding pond for octopuses and its application method. Background Technology
[0003] Octopuses, characterized by their short lifespan and rapid growth, are among the most promising protein resources in the ocean, making artificial breeding a hot research topic. In my country, artificial breeding of octopuses has been implemented for species such as the short-necked octopus, long-necked octopus, Chinese octopus, and Kagoshima octopus. During mating and spawning, artificial nests are required. Currently, the nests used in production, whether in ceramic jars, reinforced concrete tiles, or PVC pipes, are all single-type nests, suitable only for one octopus, resulting in low utilization of the breeding pond's vertical space. Furthermore, octopuses consume large amounts of food during mating to develop their gonads, necessitating regular cleaning of fish, shrimp, crab, and shellfish remains. An excessive number of nests severely hinders the cleaning of the pond bottom. Furthermore, in production, it has been observed that mating male octopuses are easily disturbed by other males, interrupting the mating process; during mating, male octopuses are preyed upon by females due to excessively close mating distance; and a single female octopus mates with multiple males simultaneously. All of these phenomena reduce the survival rate of parent octopuses and the success rate of mating. Summary of the Invention
[0004] The purpose of this invention is to provide a composite nest for octopuses to solve the current problems in production, such as male octopuses being easily disturbed by other male octopuses, interrupting mating; male octopuses being preyed on by female octopuses during mating due to excessively close mating distance; one female octopus mating with multiple male octopuses at the same time; and the low utilization rate of the three-dimensional space of the breeding pond caused by single-type nests.
[0005] This invention patent is implemented using the following technical solution:
[0006] A composite nest for octopuses consists of one female octopus nest and three male octopus nests. Both the female and male octopus nests are tubular structures. The three male octopus nests are located above the female octopus nest. The female octopus nest is open at one end, and the male octopus nests are open at both ends. The cross-sectional area of the tubular structure of the female octopus nest is larger than the cross-sectional area of the tubular structure of the male octopus nest.
[0007] As a preferred technical solution, the left, right, and rear sides of the female octopus nest and the left and right sides of the male octopus nest are provided with round holes or slits.
[0008] As a preferred technical solution, the cross-section of the female octopus nest is a frustum of a pyramid, more preferably an isosceles trapezoid; the male octopus nest consists of three identical cuboids fixed in a "pin" shape. The cross-section of the male octopus nest is a square, and the side length of the square is half of the length of the upper base of the frustum of the pyramid.
[0009] Furthermore, the composite nest material is PC or PVC or any other hard material with a density greater than that of water, and the size is appropriately adjusted according to different breeding octopuses.
[0010] Furthermore, circular holes protrude from the upper edge of the female octopus nest and the lower edge of the male octopus nest for fixedly connecting the female octopus nest and the male octopus nest together.
[0011] The present invention also provides a breeding pond for arranging the composite nest.
[0012] The present invention also provides a method for breeding using the breeding pond. First, arrange female octopuses equivalent in number to the composite nests. After the female octopuses settle in the female octopus nests, then put in male octopuses 1.5 times the number of female octopuses.
[0013] Advantages of the present invention compared with the prior art:
[0014] Through the structural settings of the composite nest in the present invention, the cross-sectional area of the female octopus nest is large and one end is closed. The female octopus is larger in volume than the male octopus. Due to the instinct of choosing safety, the female octopus will actively choose the female octopus nest as the spawning base. The male octopus has a lower demand for safety than the female octopus and is relatively smaller in size, and prefers a nest with smooth water flow, so it will choose to settle in the male octopus nest.
[0015] In the present invention, one female octopus nest and three male octopus nests are fixed as a group, meeting the need for one female octopus to mate with multiple male octopuses simultaneously. Moreover, both the male octopus and the female octopus have independent spaces, and the mating will not be easily interrupted by other male octopuses, reducing the fighting casualties caused by male octopuses competing for the right to mate.
[0016] In the present invention, by setting the male octopus nest above and the female octopus nest below, during mating, the male octopus stays in the male octopus nest and only inserts the hectocotylus into the body of the female octopus in the female octopus nest, avoiding the danger of being preyed on by the female octopus during mating, and improving the survival rate and mating success rate of octopus parents. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic structural diagram of the composite nest of the present invention; 1. Female octopus nest, 2. Male octopus nest, 3. Gap. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The technical solution of the present invention will be further explained below through examples, but the protection scope of the present invention is not limited in any form by the examples.
[0019] Example 1
[0020] As Figure 1 shown, a composite octopus nest is composed of one female octopus nest 1 and three male octopus nests 2; both the female octopus nest and the male octopus nests are tubular structures. The three male octopus nests are arranged at the upper end of one female octopus nest. One end of the female octopus nest is open, and both ends of the male octopus nests are open. The cross-sectional area of the tubular structure of the female octopus nest is larger than that of the tubular structure of the male octopus nests. Circular holes or slits are provided on the left, right, and rear sides of the female octopus nest and on the left and right sides of the male octopus nests.
[0021] Example 2
[0022] A composite octopus nest is composed of one female octopus nest 1 and three male octopus nests 2; both the female octopus nest and the male octopus nests are tubular structures. The three male octopus nests are arranged at the upper end of one female octopus nest. One end of the female octopus nest is open, and both ends of the male octopus nests are open. The cross-sectional area of the tubular structure of the female octopus nest is larger than that of the tubular structure of the male octopus nests. Circular holes or slits are provided on the left, right, and rear sides of the female octopus nest and on the left and right sides of the male octopus nests.
[0023] The cross-section of the female octopus nest is an isosceles trapezoid; the male octopus nests are three identical cuboids fixed in a 'pin' shape. The cross-section of the male octopus nests is a square, and the side length of the square is half of the length of the upper base of the trapezoid of the female octopus nest.
[0024] The material of the composite nest is PC or PVC or any other hard material with a density greater than water, and the size is appropriately adjusted according to different breeding octopuses.
[0025] Convex circular holes are provided on the upper edge of the female octopus nest and the lower edge of the male octopus nests for fixed connection. After the parent body has completely laid eggs, the male octopus nests are removed, and the female octopus nest is transferred to the incubation pool for further incubation.
[0026] Example 3
[0027] Using the composite nest of Example 2 for the breeding of Octopus sinensis in the breeding pool. The composite nests described in Example 2 are arranged in the breeding pool. First, female Octopus sinensis equivalent to the number of composite nests are put in. After the female Octopus sinensis settle in the female octopus nests, male Octopus sinensis 1.5 times the number of female Octopus sinensis are put in. During the entire mating period, the survival rate, mating frequency, and mating success rate of male octopuses in the breeding pool with composite nests are significantly higher than those in the breeding pool with traditional nests. After mating, the egg-laying rate and egg production of female octopuses in the breeding pool with composite nests are also significantly higher than those in the breeding pool with traditional nests.
Claims
1. A composite nest for octopuses, characterized in that, The octopus composite nest described above consists of one female octopus nest and three male octopus nests; both the female octopus nest and the male octopus nests are tubular structures. The three male octopus nests are arranged above one female octopus nest. One end of the female octopus nest is open, and both ends of the male octopus nests are open. The cross-sectional area of the tubular structure of the female octopus nest is larger than that of the tubular structure of the male octopus nest; round holes or slits are provided on the left, right, and rear sides of the female octopus nest and on the left and right sides of the male octopus nests. The female octopus nest is a tubular body with an isosceles trapezoid cross-section; the male octopus nests are three identical cuboids fixed in a "pin" shape. The cross-section of the male octopus nest is a square, and the side length of the square is half the length of the upper base of the isosceles trapezoid body.
2. The composite nest for octopuses according to claim 1, characterized in that, The material of the composite nest is PC or PVC or any other hard material with a density greater than water, and the size is adjusted according to different breeding octopuses.
3. The composite nest for octopuses according to claim 1, characterized in that, Round holes protrude from the upper edge of the female octopus nest and the lower edge of the male octopus nest, which are used to fixedly connect the female octopus nest and the male octopus nest together.
4. A breeding pond, characterized in that, The breeding pool is equipped with the composite nest described in any one of claims 1-3.
5. A method for breeding octopuses using the breeding pond described in claim 4, characterized in that, The method is to first release female octopuses equivalent in number to the number of composite nests. After the female octopuses settle in the female octopus nests, then release male octopuses 1.5 times the number of female octopuses.