RU2819899C1 - Method for improving habitat conditions of hydrobionts - Google Patents

Abstract

FIELD: fishing and fish farming.

SUBSTANCE: invention relates to fish industry and is intended for creation of comfortable and safe habitats of hydrobionts. According to the invention, in order to improve the living conditions of hydrobionts, the heterogeneity of the underwater landscape is increased using reef modules which are assembled from unified beams of L-shaped profile 1. In each of unified beams of L-shaped profile 1 orderly arranged mounting holes are made, wherein main mounting holes 4 are evenly distributed along the length of L-shaped beam 1 on the longitudinal axes of each of its flanges 2, 3 alternately in a staggered order, starting from the end of L-shaped beam 1, with a pitch equal to at least half the width of its flange 2 or 3. Versions of the reef module design are determined by the mounting holes used during assembly.

EFFECT: reduction of labour intensity and prime cost of works on improvement of habitat conditions of hydrobionts in water body exposed to technogenic impact.

8 cl, 5 dwg

Description

Field of technology

The invention relates to fisheries and is intended to create comfortable and safe habitats for aquatic organisms.

State of the art

A fish protection shelter is known (RU57758 dated October 27, 2006, IPC E02B 8/08, A01K 61/00), which includes a volumetric freely permeable frame structure, which is equipped with elements that make it possible to create an environment in the shelter that distinguishes it from the surrounding situation in the water intake zone of the reservoir and provides it contains favorable conditions for orientation, habitat and movement of fish to a safe zone.

A volumetric multi-beam fish shelter is also known (RU68530 dated November 27, 2007, IPC E02B 8/08, A01K 61/00), made multi-row, consisting of individual volumetric multi-beam elements, and the number of their rows in different parts of the reservoir is directly proportional to the intensity of fish migrations through these plots.

In addition, a reef transformer is known (RU112812 dated January 27, 2012, IPC E02B 8/08, A01K 61/00), which includes a volumetric reef module consisting of at least two parts, movably connected to each other with the possibility of their rotation relative to each other to give it volume.

A fishguard is also known (RU112811 dated January 27, 2012, IPC E02B 8/08, A01K 61/00), which includes a volumetric flow body, the structural elements and textures of which are made of a substrate suitable for the habitation and reproduction of aquatic organisms.

All these technical solutions are designed for the habitat of fish and other aquatic organisms in a local area of a reservoir subject to anthropogenic impact. However, their common disadvantage is that they do not allow the installation of a variety of designs and configurations of reef modules from standardized parts - landmarks, substrates and shelters that provide comfortable and safe conditions for the habitat of aquatic organisms in a problematic reservoir.

There is a known method for diverting fish from a source of danger (RU2305728 dated 09/10/2007, IPC E02B 8/08), which consists in transporting fish in an aquatic fish-diverting current from the zone of direct action of the water intake to the safe zone of the fish-inhabited reservoir, and in the section of the fish-diverting current at which the speed of the latter is reduced to values that are less tolerable for the fish being removed, conditions are created for restoring the orientation of the fish that are moving down, they are kept from re-rolling towards the water intake and they are organizing the independent escape of the fish to a safe place in the fish-inhabited reservoir.

There is also a known method for protecting fish (RU2788 533 dated January 23, 2023, IPC C1 E02B 8/08), characterized by preventing fish from entering the water intake on their own by forming a protective field using a low-intensity electromagnetic source with a shielding device consisting of grounded electrodes, with In this case, a volumetric flow-through fish shelter is installed along the outer contour of the safe section of the water intake zone.

A common disadvantage of these methods is that they do not disclose the mechanism for creating a safe place for long-term habitat of protected fish.

At the same time, it is known that the living conditions of fish, including their safety and search and feeding activity, largely depend on the degree of heterogeneity of the habitat, structured by a variety of landmarks of different nature and dimensions. Moreover, when introducing fish to a new habitat, the largest ones are examined first, and only then the small (local) elements of habitat heterogeneity. The study of the entire set of different-sized elements of the environment allows fish to create a “cognitive map of the area”, to ensure increased safety of habitat and feeding in the studied area of the reservoir (V.N. Mikheev. Heterogeneity of the environment and trophic relationships in fish. M.: Nauka. 2006. p. 50 -57 and pp. 135-145).

The closest to the proposed technical solution is the method of selective control of fish migrations (RU2633877 dated 10/19/2017, IPC E02B 8/08), which consists in transporting fish in a water current, and on the paths of their migration to the source of danger from an extended ordered set of shield reef modules are arranged a fish-inhabited reef biotope in which a system of currents is formed that selectively transport various species of fish in directions favorable to them.

The disadvantage of this method is the use of shield reef modules, which together form bottom relief structures that are devoid of diversity, that is, unattractive to fish.

Disclosure of the invention

The technical result of the claimed invention is to reduce the labor intensity and cost of work to increase the diversity and heterogeneity of the underwater landscape to improve the living conditions of aquatic organisms in a reservoir subject to technogenic impact.

The technical result is achieved by the fact that in order to improve the living conditions of hydrobionts in a reservoir, the heterogeneity of the underwater landscape is increased, using reef modules, which are assembled from standardized beams of an L-shaped profile, in each of which ordered mounting holes are made, and the main mounting holes are evenly distributed along the length L-shaped beams on the longitudinal axes of each of its shelves alternately in a checkerboard pattern, starting from the end of the beam, with a step equal to at least half the width of the shelf, while the design options for the reef module are determined by the mounting holes used during assembly.

At the end sections of the L-shaped beam, the length of each of which is not less than half the width of its flange, a set of end mounting holes are made, which are placed on the same longitudinal axes of the L-shaped beam flanges as the main mounting holes with a pitch equal to at least the thickness of the edge of its shelf.

In the longitudinal edge of one of the flanges of the L-shaped beam, edge mounting holes are made, which along the length of the L-shaped beam are located between the main mounting holes, and on the second flange of the L-shaped beam, alternating mounting holes are made in a checkerboard pattern, of which the edge the mounting holes are located in the longitudinal edge of the L-shaped beam, and the side mounting holes are located along its longitudinal edge at a distance from it equal to at least half the thickness of the shelf edge, while the edge and side mounting holes are located in the shelves in pairs on the same axes, orthogonal the edge of the L-shaped beam, respectively.

The end mounting holes are located at the ends of the L-shaped beams.

To create a monocentric design of the reef module, three L-shaped beams are combined into a single orthogonal unit.

To create a polycentric structure of a reef module, at least one of the L-shaped beams of at least two reef modules of a monocentric design is used as a common one.

At least two L-shaped beams are combined into a precast rectangular beam.

A prefabricated beam is used instead of an L-shaped beam to create design options for reef modules.

The L-shaped beams are connected to each other through spacers, with the help of which they provide additional windows and corridors in the reef module for the passage of hydrobionts and water flow.

Mounting holes not used when assembling the reef module are used to place guide inserts, substrate inserts, wavy inserts, and substrate shields on it, with the help of which they provide a local increase in the heterogeneity of the underwater landscape.

Brief description of drawings

Figure 1 shows a unified L-shaped beam, general view.

In Fig.1 the following notations are used:

1. L-shaped beam

2. First flange of L-shaped beam

3. Second flange of the L-shaped beam

4. Main mounting hole

5. End mounting hole

6. Side mounting hole

7. Edge mounting hole

8. End mounting hole

9. Longitudinal edge of an L-shaped beam

10. L-shaped beam rib

11. End of the L-shaped beam

12. Mounting loop

14. Fastener

17. Guide insert

18. Substrate insert

19. Wavy insert

Figure 2 shows an elongated prefabricated beam, which is assembled from standardized L-shaped beams, general view. In Fig.2 the following notations are used:

1. L-shaped beam

2. First flange of L-shaped beam

3. Second flange of the L-shaped beam

4. Main mounting hole

5. End mounting hole

6. Side mounting hole

7. Edge mounting hole

8. End mounting hole

9. Longitudinal edge of an L-shaped beam

10. L-shaped beam rib

11. End of the L-shaped beam

12. Mounting loop

13. Prefabricated beam

14. Fastener

15. Spacer

16. Window

Figure 3 shows the monocentric design of the reef module - hexapods, general view.

In Fig. 3 the following notations are used:

1. L-shaped beam

4. Main mounting hole

5. End mounting hole

6. Side mounting hole

7. Edge mounting hole

8. End mounting hole

12. Mounting loop

Figure 4 shows a pointed monocentric design of a reef module - a pyramid, general view.

In Fig.4 the following notations are used:

1. L-shaped beam

4. Main mounting hole

5. End mounting hole

6. Side mounting hole

7. Edge mounting hole

8. End mounting hole

12. Mounting loop

14. Fastener

Figure 5 shows the polycentric structure of a reef module - a prism, which is assembled from two monocentric structures of reef modules - pyramids, united by a common L-shaped beam, general view.

In Fig.5 the following notations are used:

1. L-shaped beam

4. Main mounting hole

5. End mounting hole

6. Side mounting hole

7. Edge mounting hole

8. End mounting hole

12. Mounting loop

14. Fastener

17. Guide insert

20. Shield-substrate

Carrying out the invention

To improve the living conditions of aquatic organisms, the diversity of the heterogeneity of the underwater landscape is increased by arranging it with additional substrates, landmarks and shelters. As such, reef modules of various designs are used (Figs. 3-5), which are assembled from standardized beams of L-shaped profile 1 (Figs. 1-5). To do this, in the orthogonally located first 2 (Figs. 1 and 2) and second 3 (Figs. 1 and 2) shelves of the L-shaped beam 1 (Figs. 1-5), orderly arranged mounting holes are arranged: main 4 (Fig. 1 -5), end 5 (Figs. 1-5), side 6 (Figs. 1-5), edge 7 (Figs. 1-5) and end 8 (Figs. 1-5).

The main mounting holes 4 (Figs. 1-5) are evenly distributed on the longitudinal axes of each of the shelves 2 (Figs. 1 and 2) and 3 (Figs. 1 and 2) alternately in a checkerboard pattern, starting from the end of the L-shaped beam 1 (Figs. 1-5), with a step equal to at least half the width of its shelf 2 (Figs. 1 and 2) or 3 (Figs. 1 and 2).

The end sections of the L-shaped beam 1, the length of each of which is at least half the width of its flange 2 (Figs. 1 and 2) or 3 (Figs. 1 and 2), are equipped with a set of end mounting holes 5 (Figs. 1-5) , which are placed on the same longitudinal axes of shelves 2 (Figs. 1 and 2) and 3 (Figs. 1 and 2) beams of L-shaped profile 1 (Figs. 1-5) with a step equal to at least the thickness of the edge 9 (Fig. 1 and 2) its shelves 2 (Figs. 1 and 2) or 3 (Figs. 1 and 2).

In the longitudinal edge 9 (Figs. 1 and 2) of the first shelf 2 (Figs. 1 and 2) of the beam of the L-shaped profile 1 (Figs. 1-5), edge mounting holes 7 (Figs. 1-5) are arranged, which along the length L-shaped beams 1 (Figs. 1-5) are placed between the main mounting holes 4 (Figs. 1-5). The second shelf 3 (Figs. 1 and 2) of the beams of the L-shaped profile 1 (Figs. 1-5) is equipped with mounting holes alternating in a checkerboard pattern, of which the edge 7 are located in the longitudinal edge 9 (Figs. 1 and 2) of the shelves 3 ( Figs. 1 and 2), and the side 6 (Figs. 1-5) - along its 3 (Figs. 1 and 2) longitudinal edge at a distance from it equal to at least half the thickness of the edge 9 (Figs. 1 and 2) of the shelf 2 (Figs. 1 and 2) or 3 (Figs. 1 and 2). In this case, the edge holes 7 (Figs. 1-5), arranged in the shelf 2 (Figs. 1 and 2), and the corresponding side holes 6 (Figs. 1-5) and edge holes 7 (Figs. 1-5), arranged in the shelf 3 (Figs. 1 and 2), are placed in pairs on the same axes, orthogonal to the rib 10 (Figs. 1 and 2) of the L-shaped beam 1 (Figs. 1-5).

The end mounting holes 8 (Figs. 1-5) are located at the ends 11 (Figs. 1-5) of the beams of the L-shaped profile 1 (Figs. 1-5).

At least one of the ends 11 of the L-shaped beam 1 (Figs. 1-5) is equipped with a mounting loop 12 (Figs. 1-5).

At least two beams of L-shaped profile 1 (Fig. 1-5), using the necessary side 6 and edge 7 mounting holes, can be combined into a prefabricated beam 13 (Fig. 2) of various profiles with fasteners 14 (Fig. 1, 2, 4 and 5), for example, with a bolted or anchor connection (Fig. 2). In this case, the beams of the L-shaped profile 1 (Figs. 1-5) can be joined to each other either along the entire length or offset. The latter allows you to lengthen the prefabricated beam 13 (Fig. 2).

From an orthogonal set of individual beams of an L-shaped profile 1 (Figs. 1-5) or prefabricated beams 13 (Fig. 2), a reef module is assembled (Figs. 3-5). Its assembly is also carried out by connecting beams 1 (Fig. 1-5) or 13 (Fig. 2) with fasteners 14 (Fig. 1, 2, 4 and 5), which are mounted in the corresponding main 4 (Fig. 1-5) or end 5 (Fig. 1-5) mounting holes. Using different combinations of ordered main mounting holes 4 (Figs. 1-5), as well as end mounting holes 5 (Figs. 1-5), provide a variety of design options for reef modules. Moreover, different design options for reef modules are assembled by selecting from a set of ordered mounting holes 4 (Figs. 1-5) and 5 (Figs. 1-5) and using only those that are necessary for assembly.

So, for example, as a result of combining three beams of L-shaped profile 1 (Fig. 1-5) or prefabricated beams 13 (Fig. 2) in a single orthogonal unit, a monocentric design of the reef module is formed:

- a six-beam hexapod (Fig. 3), in which the orthogonal convergence unit for beams of L-shaped profile 1 (Fig. 1-5) or prefabricated beams 13 (Fig. 2) is located in their middle part;

- a three-beam non-pointed pyramid, in which the orthogonal node of convergence of beams of L-shaped profile 1 (Fig. 1-5) or prefabricated beams 13 (Fig. 2), i.e. a non-pointed apex is located in their end part (not shown in the figure).

Using a set of end mounting holes 5 (Figs. 1-5) in the beams of the L-shaped profile 1 (Figs. 1-5), a pointed three-ray pyramid is created (Fig. 4). Moreover, the presence at the end section of each of the three connecting beams of the L-shaped profile 1 (Figs. 1-5) is not one, but a set of end mounting holes 5 (Figs. 1-5), placed with a pitch equal to not less than the thickness of the edge 9 ( 1 and 2) shelves 2 (Figs. 1 and 2) or 3 (Figs. 1 and 2), allows for assembling the orthogonal node of the pointed top of the pyramid by superimposing shelves 2 (Figs. 1 and 2) or 3 ( 1 and 2) select from the set of end holes 5 (Figs. 1-5) their necessary combinations mating with each other.

If one of the beams of the L-shaped profile 1 (Fig. 1-5) or the prefabricated beam 13 (Fig. 2) is used as a common one for several monocentric structures of reef modules, then a polycentric structure of the reef module is formed, for example, a prism (Fig. 5 ).

Using all beams 1 (Fig. 1-5) or 13 (Fig. 2) as common ones, several reef modules of a monocentric design are also combined into a reef module of a polycentric design, for example, a cube (not shown in Fig.).

Despite the fact that in order to form a single orthogonal unit from beams 1 (Fig. 1-5) or 13 (Fig. 2), the step between the main mounting holes alternately installed in a checkerboard pattern must be no less than the width of the shelves 2 (Fig. 1 and 2 ) or 3 (Figs. 1 and 2), in the unified beam 1 (Figs. 1-5) the location of the main mounting holes 4 (Figs. 1-5) is taken in increments equal to at least half the width of the shelves 2 (Figs. 1 and 2 ) or 3 (Figs. 1 and 2). This allows not only to practically double the number of different design options for reef modules, but, most importantly, to begin placing beams 1 (Fig. 1-5) or 13 (Fig. 2) fastened to each other immediately from their edge (end), those. provide the possibility of assembling a non-pointed pyramid and other polycentric designs of reef modules based on its use.

Beams of L-shaped profile 1 (Fig. 1-5) can be combined with each other, incl. into the prefabricated beam 13 (Fig. 2) or the reef module through spacers 15 (Fig. 2), with the help of which windows 16 (Fig. 2) are created, intended for the passage of water currents and aquatic organisms. In this case, the use of spacers 15 (Fig. 2) also makes it possible to smooth out possible uneven surfaces of the beams of the L-shaped profile 1 (Fig. 1-5) and ensure compatibility of the mounting holes 4 (Fig. 1-5), 5 (Fig. 1-5), 6 (Figs. 1-5) and 7 (Figs. 1-5).

Through mounting holes 4 (Fig.1-5), 5 (Fig.1-5), 6 (Fig.1-5), 7 (Fig.1-5), 8 (Fig.1-5) beams G- shaped profile 1 (Fig. 1-5) or prefabricated beams 13 (Fig. 2) are additionally equipped with guide inserts 17 (Figs. 1 and 5), for example, imitating various aquatic vegetation, as well as substrate inserts 18 (Fig. 1 ), used by resident hydrobionts for sedentary habitat and reproduction.

Beam L-shaped profile 1 (Fig. 1-5), by means of mounting, for example, edge holes 7 (Fig. 1-5) can also be equipped with wavy inserts 19 (Fig. 1) and with their help ensure the curvilinearity of the outlines of the beam G- shaped profile 1 (Fig. 1-5). Thanks to this, they form a more diverse hydraulic structure of the flow flowing around the beams of the L-shaped profile 1 (Figs. 1-5), and provide an increase in both landscape and hydraulic heterogeneity of the natural habitat of aquatic organisms, and therefore more favorable conditions for their settled habitat.

In addition, the polycentric structure of the reef module, for example, a prism or cube, can be equipped with substrate shields 20 (Fig. 5, shown transparent) through the main mounting holes 4 (Figs. 1-5).

Reef modules of various designs, made from unified beams of L-shaped profile 1 (Fig. 1-5), are combined into extended or extensive arrays and with their help, in the flowing area of the reservoir, they create local biotopes with a variety of landmarks, substrates, shelters and hydraulic shadows, those. significantly and diversely increase the heterogeneity of the underwater landscape - the natural habitat of fish and other aquatic organisms. This is also facilitated by the arrangement of various mounting holes 4 (Figs. 1-5), 5 (Figs. 1-5), 6 (Figs. 1-5), 7 (Figs. 1-5) and 8 (Figs. 1-5 ), not used for the assembly of the reef module, various spacers 15 (Fig. 2) and additional guide inserts 17 (Figs. 1 and 5), substrate inserts 18 (Fig. 1), wavy inserts 19 (Fig. 1) and shields -substrates 20 (Fig.5), with the help of which the heterogeneity of the underwater landscape is locally increased.

As the depth of the reservoir section being developed increases, the height of the reef modules can also be increased by using elongated prefabricated beams 13 (Fig. 2), which are also assembled from L-shaped beams 1 (Figs. 1-5). At the same time, the height, volume and diversity of the reef module are significantly increased.

So, for example, when combining two beams of an L-shaped profile 1 (Fig. 1-5) with a shift relative to one another, not only the extension of the prefabricated beam 13 (Fig. 2) is ensured, but also the tubular rectangular profile of the prefabricated beam formed during their joining is used 13 (Fig. 2) as an additional shelter for aquatic organisms, which significantly improves the conditions for their safe living in the reef module.

Beams of L-shaped profile 1 (Figs. 1-5), as a rule, are made of a substrate whose density is greater than the density of water, i.e. having negative buoyancy.

However, if it is necessary to equip the deepest parts of the reservoir, beams of L-shaped profile 1 (Figs. 1-5) or other additional small forms of local increase in the heterogeneity of the underwater landscape, namely insert-guidelines 17 (Figs. 1 and 5) and insert-substrates 18 (Fig.1) can be made from a material whose density is less than the density of water, i.e. having positive buoyancy. Using end hinges 12 (Fig. 1-5), individual beams of L-shaped profile 1 (Fig. 1-5), which have positive buoyancy, as well as prefabricated beams 13 (Fig. 2) and volumetric reef modules assembled on their basis other small forms of local increase in the heterogeneity of the underwater landscape 17 (Fig. 1 and 5) and 18 (Fig. 1), also having positive buoyancy, can be combined into extended floating aggregates - garlands, placed in the water column of deep-sea areas and thereby significantly increase its heterogeneity and attractiveness for the aquatic population. In this case, the reef module, assembled from L-shaped beams 1 (Fig. 1-5), having negative buoyancy, is used as an anchor for pelagic garlands.

Using the heterogeneity of the landscape and hydraulic structures of the habitat, they provide the aquatic population of the developed area with the opportunity, depending on the species, age, size and their preferences, to choose optimal feeding areas both on the streamlined external surface and in the internal shelters of the reef module. To ensure unhindered passage of hydrobionts into the internal shelters, using spacers 15 (Fig. 2), an extended system of windows 16 (Fig. 2) is installed in the prefabricated beams 13 (Fig. 2) and thereby provides not only food organisms, but also fish with the ability to move between different gradient zones of flow around the reef module without going beyond its limits, for example, into a dangerous water intake zone.

Using a variety of designs of reef modules, which are assembled from standardized beams of L-shaped profile 1 (Fig. 1-5), and, equipping them with a variety of additional inserts developed into the water column 17 (Fig. 1 and 5), 18 (Fig. 1) , 19 (Fig. 1) and 20 (Fig. 5), i.e. small forms of local increase in the heterogeneity of the underwater landscape provide the opportunity for fish performing search and feeding movements between individual elements of the reef biotope massif to consider each subsequent reef module as different from the previous one. As a result, fish constantly perceive the local reef biotope as always new and, therefore, a more extensive, diverse and attractive area of the reservoir than it actually is.

The implementation of reef modules flowing through the water column and equipping them with additional inserts-substrates 18 (Fig. 1) and shields-substrates 20 (Fig. 5), made from a variety of materials suitable for the habitation and reproduction of aquatic food organisms, contributes to the formation of in a local area of a reservoir, the food supply is more developed and recovers faster than in the surrounding areas with a homogeneous bottom relief that is poorly developed in the water column. As a result, in the coverage area there is a variety of reef modules assembled from standardized beams of L-shaped profile 1 (Figs. 1-5), equipped with additional spacers 15 (Fig. 2), guide inserts 17 (Figs. 1 and 5), substrates 18 (Fig. 1), wavy inserts 19 (Fig. 1) and substrate shields 20 (Fig. 5), create favorable feeding conditions for fish feeding in a heterogeneous habitat and provide conditions for their more interested and therefore longer stay on local area of the reservoir, remote from the source of man-made hazard, for example, a water intake.

Moreover, when the reef module is equipped with substrate shields 20 (Fig. 5), they are used not only as an additional substrate and reliable shelter, increasing the landscape diversity of the natural habitat of aquatic organisms, but also as a flow-forming element. In this case, the polycentric structures of the reef modules are used as a support for placing substrate shields 20 (Fig. 5), with the help of which they form an extended barrier and direct the water flow along with its inhabitants along a given route, for example, to a safe place for their long-term habitat.

Thus, the use of standardized beams of L-shaped profile 1 (Fig. 1-5), in which an ordered set of mounting holes 4 (Fig. 1-5), 5 (Fig. 1-5), 6 (Fig. 1- 5), 7 (Figs. 1-5) and 8 (Figs. 1-5), not only simplifies the creation and equipment of various designs of reef modules, but at the same time ensures an increase in the diversity of the heterogeneity of the underwater landscape, i.e. improving the conditions for the settled habitat of aquatic organisms at a distance from the source of man-made danger, for example, a large water intake, therefore significantly reduces the likelihood of approaching the danger zone and thereby ensures their safety.

Claims (8)

1. A method for improving the living conditions of hydrobionts, which consists in increasing the heterogeneity of the underwater landscape using reef modules, characterized in that the reef modules are assembled from standardized L-shaped beams, in each of which ordered mounting holes are made, with the main mounting holes the holes are evenly distributed along the length of the L-shaped beam on the longitudinal axes of each of its shelves alternately in a checkerboard pattern, starting from the end of the beam, with a step equal to at least half the width of the shelf, while the design options for the reef module are determined by the mounting holes used during assembly. 2. The method for improving the living conditions of aquatic organisms according to claim 1, characterized in that at the end sections of the L-shaped beam, the length of each of which is at least half the width of its shelf, a set of end mounting holes is made, which are placed on the same longitudinal axes of the shelves beams with an L-shaped profile, the same as the main mounting holes, with a pitch equal to no less than the thickness of the edge of its flange. 3. A method for improving the living conditions of aquatic organisms according to claim 1, characterized in that in the longitudinal edge of one of the shelves of the L-shaped beam, edge mounting holes are made, which are located along the length of the L-shaped beam between the main mounting holes, and on the second shelf L-shaped beams have mounting holes alternating in a checkerboard pattern, of which the edge mounting holes are located in the longitudinal edge of the L-shaped beam, and the side mounting holes are located along its longitudinal edge at a distance from it equal to at least half the thickness of the shelf edge, in this case, the edge and side mounting holes are located in the shelves in pairs on the same axes, orthogonal to the edge of the L-shaped beam, respectively. 4. The method for improving the living conditions of aquatic organisms according to claim 1, characterized in that the end mounting holes are arranged at the ends of the L-shaped beams. 5. A method for improving the living conditions of aquatic organisms according to claim 1, characterized in that to create a monocentric structure of a reef module, three L-shaped beams are combined into a single orthogonal unit. 6. A method for improving the living conditions of aquatic organisms according to claim 1, characterized in that to create a polycentric structure of a reef module, at least one of the L-shaped beams of at least two reef modules of a monocentric design is used as a common one. 7. A method for improving the living conditions of aquatic organisms according to claim 1, characterized in that the L-shaped beams are connected to each other through spacers, with the help of which additional windows and corridors are installed in the reef module for the passage of aquatic organisms and water flow. 8. A method for improving the living conditions of aquatic organisms according to claim 1, characterized in that the mounting holes not used when assembling the reef module are used to place guide inserts, substrate inserts, wavy inserts, substrate shields on it, with the help of which local increased heterogeneity of the underwater landscape.