Ecological and environment-friendly fish larvae protection device

Abstract

The invention discloses an eco-environmental protective device for larvae and juveniles, aiming to provide an eco-environmental protection fish reef with low cost and complex internal structure suitable for the growth of larvae and juveniles. It includes a hollowed-out sphere connector, several large bottomless plastic bottles, several bottomless small plastic bottles A and at least one bottomed small plastic bottle B. There are several threaded holes on the top, the large plastic bottle is fixed on the outside of the sphere through the thread of the bottle mouth and the threaded hole, the small plastic bottle A and the small plastic bottle B are respectively inserted into the large plastic bottle, and are fixed to the large bottle mouth through the threaded connection sleeve Connection, the bottle body of the large plastic bottle is provided with several round holes. The invention adopts low-cost, corrosion-resistant, non-toxic and environment-friendly discarded plastic bottles to build. It has large attachment area of ​​marine plankton, complex and changeable internal space, and self-purifying ecological function. It is very suitable for larvae to inhabit. Survive.

Description

technical field [0001] The invention relates to the field of mariculture, in particular to an artificial reef for protecting larvae and juveniles. Background technique [0002] Due to the impact of human activities, the species and quantity of marine organisms are constantly decreasing. To protect the species and quantity of marine organisms is not only to limit human overfishing, but also to ensure that the seedlings of marine organisms can grow in a safe and healthy environment. However, Due to the warming of the global climate and the deterioration of the marine environment, the natural fish reefs have been greatly reduced, making fish eggs or juveniles exposed to big fish without a shadow, which has accelerated the extinction of fish populations. As a method of protecting and multiplying fish and improving the water environment, artificial reefs have invested a lot of manpower and material resources in the world, especially in the United States and Japan, to research and...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of high cost of artificial fish reef, simple internal structure, and unsuitability for the survival of larvae and juveniles, the present invention provides an eco-friendly fish reef with low cost and complex internal structure suitable for the growth of larvae and juveniles

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