Regional fishing device and method for circulating-water cage culture

Abstract

The invention discloses a regional fishing device for circulating-water cage culture. The device includes at least one breeding tank, wherein an aeration water-pushing module is arranged at one end ofeach breeding tank, a sewage collection module is arranged at the other end, and each breeding tank includes a canvas trough body which is arranged in a buoyancy frame; circulating net drying modulesare fixed at both ends of each canvas trough body separately, each circulating net drying module includes a ring-shaped net which is arranged in a frame body, and chain transmission can be formed byeach ring-shaped net after each ring-shaped net is driven; net change is performed through circulating movement of the ring-shaped nets for a distance, each breeding tank is also provided with at least one regional dividing module, and a canvas is divided into at least two regions by a regional cross bar; each aeration water-pushing module is arranged outside the corresponding circulating net drying modules, and is used for carrying out aeration and pushing water for the corresponding breeding tank, each sewage collection module includes a diversion area and a collection area, and the outsideof each diversion area communicates with the corresponding collection area; and sewage which is pushed out of each breeding tank is introduced into one collection area through the corresponding diversion area, and then dirt is drained away through suction. Fishing of cage culture can be facilitated, cleanliness, aeration and water exchange of net cages are ensured, and functions of collection anddischarge of sewage are achieved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture net cages, and in particular relates to a circulating water net cage culture device and method for zoned fishing. Background technique [0002] Cage culture is one of the main methods of aquaculture. my country's large-scale mariculture is concentrated in the shallow water area, and the culture is greatly restricted, and the large-scale seawater resources will not be well utilized. Therefore, the The expansion of aquaculture to larger sea areas should be a current trend. [0003] At present, marine aquaculture at home and abroad is mainly cage culture. Usually the size of the net cage is relatively large, and the net clothing with high strength and anti-fouling bio-fouling function has begun to appear in the net cage culture. Harvesting farmed fish is a tough job in such large cages. On the other hand, some net clothes are seriously attached to organisms, which affect the water circulation o...

AI Technical Summary

Problems solved by technology

However, most of the current methods of collecting nets have problems such as long operation time and high labor intensity. At the same time, the difficulty of collecting nets also limits the depth of cages, resulting in the current situation that mariculture can only be carried out in shallow waters.

[0005] The patent with the publication number CN 206933018 U discloses a large-scale fish breeding net cage which is convenient for fishing and cleaning of the net clothes. The buoyancy provided by the device after the buoyancy tube storehouse is inflated supp

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