Novel fish cage for aquatic breeding

Abstract

A novel fish cage includes a pipe rack of spatial structure which is formed by hollow throats assembled by joints, a fishnet or soft cage supported by the pipe rack, a preventing mussel adhere firm covering the rack pipe's surface, and compressed gas inlet for controlling fish cage to sink and float. The present invention may be elevated and shifted easily to avoid destruction of grease stain, strong wind, billow and red tide, and has simple structure and less pollution. The present invention may be used widely in cultivation farm in shoreside, open sea, etc.

Description

technical field [0001] The invention relates to the field of fishery, in particular to a fish cage applied to mariculture. Background technique [0002] At present, most of the devices used for marine fish farming are floating cages, which are simple in structure, not strong enough and easy to deform, and have poor wind and wave resistance. When encountering strong winds and huge waves, the fish farming equipment will often be impacted and damaged, causing fish to be lost. Therefore, the farms can only be located on the nearshore water surface. However, because most of the fish raised are deep-sea fish, such as groupers and slender scales, they are not suitable for breeding on the upper water surface, and the mortality rate is relatively high. There are also used waste tires, abandoned boats, etc. to sink to the bottom of the water to form artificial reefs to attract fish, but this method also causes seabed pollution. Moreover, the near-shore water surface is often polluted...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the devices used for marine fish farming are floating cages, which are simple in structure, not strong enough and easy to deform, and have poor wind and wave resistance. When encountering strong winds and huge waves, the fish farming equipment will often be impacted and damaged, causing fish to be lost. , so the farms can only be located on the nearshore water surface, however, because most of the fish raised are deep-sea fish, such as grouper and fine scale, it is not suitable for breeding in the upper water surface, and the mortality rate is high

There are also used waste tires, abandoned boats, etc. to sink to the bottom of the water to form artificial reefs to attract fish, but this method also causes seabed pollution

Moreover, the near-shore water surface is often polluted by various oils, so that the raised fish are also polluted.

In addition, in the existing fish farms, the weaker fish are often swallowed by the stronger fish, reducing the fish catch, and the small fish debris used to feed the fish will pollute the nearby seawater and seabed. Trawlers in turn destroy fishing grounds, reducing fry and catches

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