Caisson device for cultivating filter feeding shellfishes

Abstract

The invention belongs to the technical field of aquaculture equipment, and particularly relates to a caisson device for cultivating filter feeding shellfishes. The caisson device comprises a caisson main body, an opening and closing cover is mounted at the front end of the caisson main body, side holes are formed in the inner side of the caisson main body, an inflating pipe is arranged at the inner side of the caisson main body, and an air outlet is formed in the upper end of the inflating pipe. Attachment plates are arranged at the inner side of the caisson main body, positioning holes are formed in the inner sides of the attachment plates, breeding grooves are formed in the inner sides of the attachment plates, and exchange holes are formed in the inner side of the caisson main body. Through the arrangement of the side holes, water exchange between the interior of the caisson main body and the external environment is achieved, so that circulation of the water in the caisson main bodyis ensured; through the arrangement of the exchange holes, water exchange with the external environment can be achieved, dirt produced in the growth and development process of the filter feeding shellfishes can be discharged in time, and therefore the culture effect of the filter feeding shellfishes is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of aquaculture equipment, and in particular relates to a caisson device for cultivating filter-feeding shellfish. Background technique [0002] Shellfish, that is, a class of molluscs, are animals with three germ layers, bilateral symmetry, and a true body cavity. The true coelom is underdeveloped and only exists in the pericardial cavity and gonadal cavity. Molluscs vary greatly in shape, but they can be divided into four parts in structure: head, foot, visceral sac and mantle. The head is located at the front of the body , the foot is located behind the head and on the ventral surface of the body. It is a muscular motor organ protruding from the body wall. The visceral sac is located on the back of the body and is an internal organ surrounded by a soft body wall. One or a pair of membranes formed by the extension and sagging of the wall. The cavity between the mantle and the visceral sac is the mantle cav...

AI Technical Summary

Problems solved by technology

[0002] Shellfish, that is, a class of molluscs, are animals with three germ layers, bilateral symmetry, and a true body cavity. The true coelom is underdeveloped and only exists in the pericardial cavity and gonadal cavity. Molluscs vary greatly in shape, but they can be divided into four parts in structure: head, foot, visceral sac and mantle. The head is located at the front of the body , the foot is located behind the head and on the ventral surface of the body. It is a muscular motor organ protruding from the body wall. The visceral sac is located on the back of the body and is an internal organ surrounded by a soft body wall. One or a pair of membranes formed by the extension and sagging of the wall. The cavity between the mantle and the visceral sac is the mantle cavity. The mantle secretes calcium carbonate to the body surface, forming one or two shells to surround the whole body. A few species of shells are covered by The body wall surrounds or the shell completely disappears. These basic structures have great changes and differences in different classes. Molluscs have a complete digestive tract, respiratory and circulatory systems, and metanephros that are more evolved than the original kidney. , after the filter-feeding shellfish are cultivated to a certain size, they must be transferred to the sea area for cultivation, and the basic hardware facilities are generally used for cultivation in the sea area. exchange, and because the attachment plate has protruding edges and corners, it is easy to cause puncture damage to filter-feeding shellfish and affect the survival rate of filter-feeding shellfish

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