KR-20260067613-A - Artificial reef fry feeding device

Abstract

The present invention relates to a feed supply device for fry for artificial reefs, and is characterized by comprising an outer tube installed on an artificial reef where a habitat space for fry is formed, the outer tube having a plurality of first discharge holes formed at regular intervals on its surface, and an inner tube located inside the outer tube, having a plurality of second discharge holes formed at regular intervals on its surface and a safety space formed in the center where fry can grow, wherein compressed feed is filled in a feed filling space formed between the outer tube and the inner tube. According to the present invention, by providing long-term growth feed to fry inhabiting artificial reefs, the fry are prevented from leaving the artificial reefs for feeding activities, thereby minimizing the sacrifice of fry by predators and increasing the adaptability and survival rate of the fry.

Inventors

• 최철윤

Assignees

• 최철윤

Dates

Publication Date

20260513

Application Date

20241106

Claims (2)

1. In a feed supply device (100) installed in an artificial reef (1) where a habitat space (10) for fry is formed, The above feed supply device (100) is a feed supply device for fry for artificial reefs characterized by having compressed feed (101) filled in the feed filling space (103).
2. In Article 1, It further includes a feed pressure body (130) provided in a feed filling space (103) formed between the outer tube (110) and the inner tube (120) and pressurizing the upper part of the compressed feed (101) by its own weight. A feed supply device for fry for artificial reefs, characterized in that when the above feed pressure body (130) descends due to its own weight, it pressurizes the compressed feed (101) from the top to the bottom and discharges the compressed feed through the discharge hole (111).

Description

Artificial reef fry feeding device The present invention relates to a feed supply device for fry for artificial reefs, and more specifically, to a feed supply device for fry that is installed on an artificial reef installed on the seabed to protect young fry from large predators, and which stably supplies feed necessary for the growth of fry over a long period of time. Recently, rising sea temperatures due to global warming and the massive influx of toxic waste into the oceans are significantly polluting all seas and even affecting genetic mutations in fish species. Furthermore, the large volume of muddy water generated during land reclamation projects pollutes the tidal flats, and the tetrapods used in breakwaters are made of concrete and cause bleaching upon contact with seawater, which hinders oxygen supply to coastal fishing grounds. This leads to the destruction of seaweed, kelp, and shellfish—food sources for various fish—as well as refuges for fish fry, causing a sharp decline in catch volume. Consequently, the number of fishing households engaged in coastal fisheries in Korea has decreased to one-fifth of what it was 20 years ago, and the catch volume, which reached 3.7 million tons two years ago, plummeted by 15% last year and is expected to fall short of even 3.15 million tons this year, resulting in a serious situation. Consequently, fisheries-related agencies are conducting fish fry release programs to revitalize the stagnant coastal fisheries; however, while the use of fishing gear made of chemicals such as concrete, which are harmful to the fry, is a problem, the rate of adult fish returning after growing is very low because juveniles, farmed in environments with appropriate water temperature, purified water quality, abundant food, and no natural predators, are released into suddenly polluted oceans without any measures or alternatives regarding rapid temperature changes, shelter, or food. Of course, recently, artificial reefs have been manufactured and installed on the seabed or underwater to protect and raise target aquatic organisms. These artificial reefs are structures that help young fish grow and survive safely, providing habitats for marine life and contributing to the revitalization of the ecosystem. In particular, these artificial reefs have various advantages, such as providing shelters where fry can hide from predators, serving as gathering places for micro-marine organisms to easily find food, and enhancing biodiversity by providing an environment where various types of organisms can live. The installation of such artificial reefs plays an important role in fisheries resource management and marine ecosystem protection, and many countries utilize these structures. Prior art regarding such artificial reefs includes "Environmental artificial reef using rubber concrete" in Registered Patent No. 10-0234567 (Reference 1) and "Dome-shaped artificial reef having a double reef frame" in Registered Utility Model No. 20-0430045 (Reference 2). However, conventional artificial reefs proposed in the aforementioned references 1 and 2 are made of materials such as concrete, rubber, and plastic, and only provide a limited function of protecting fry from external predators; they do not provide any function of continuously or for a long period of time the food necessary for the growth of fry. Therefore, young fry may venture outside the artificial reef in search of food, which still presents the problem of exposure to predators and a sharp decline in survival rates. FIG. 1 is a perspective view of an artificial reef equipped with a fry feed supply device according to the present invention. FIG. 2 is an exploded view of a fry feed supply device according to the present invention. A preferred embodiment of a fry feed supply device for artificial reefs according to the present invention will be described in more detail below with reference to the attached drawings. According to FIGS. 1 and 2, the fry feed supply device (100) according to the present invention can provide the fry (F) with feed necessary for growth for a long period without moving outside of the artificial reef (1), thereby reducing the risk of being killed by external predators and increasing the survival rate. Here, the artificial reef (1) is a structure that can be made of various shapes and materials, and in particular, if it is manufactured in an eco-friendly way using natural shells such as oyster shells and clam shells produced through shellfish farming or washed ashore, it can prevent or block marine environmental pollution. The above artificial reef (1) has a habitat space (10) for fry (F) formed inside, and a fry feed supply device (100) (hereinafter referred to as the 'feed supply device') filled with compressed feed (101), which is food for the growth of fry, is installed in a detachable manner in the habitat space (10). In this case, when the upper artificial reef (20) and lower artificial reef (30) constituting the artifici