Bottom-seed sea water culture facilities suitable for sediment bottom sea area

Abstract

The invention relates to a bottom sowing-type mariculture facility which is suitable for the sea area with silt bottom, in particular to a bottom sowing-type raft frame and a net cage for marine bivalve mollusks, sea cucumbers or mixotrophic culture of marine bivalve mollusks and sea cucumbers. The facility is provided with a PVC pipe, a polyethylene rope for fixing the PVC pipe, a webbing, a stake or an anchor for fixing the facilities, a rope fixed on the stake or the anchor, and a fixable floating ball which is connected to the rope and floats on the surface of water; the PVC pipe is fixed on the polyethylene rope in parallel, the polyethylene rope is arranged in parallel, is perpendicular to the PVC pipe, is positioned at the upper side and the lower side of the two terminals of the PVC pipe and forms the structure similar to a 'soft ladder'; the 'soft ladder' is externally covered by the webbing, and a plurality of independent net cages are formed by combining the PVC pipe, the polyethylene rope and the webbing; the two ends of the undrawn 'soft ladder' are fixed at the bottom of the sea by the stake or the anchor respectively, and the floating ball is fixed at the two ends of the 'soft ladder' by the rope. The facility can effectively prevent the enemies and reduce the influence of storm and ocean current, thus being convenient for management and harvest and favorable to the comprehensive utilization of mariculture area.

Description

Technical field: [0001] The invention relates to a bottom-sowing type mariculture facility suitable for muddy bottom sea areas, in particular to a bottom-sowing type raft frame and a culture cage for the mixed cultivation of seawater bivalve molluscs, sea cucumbers or shellfishes. Background technique: [0002] At present, bivalve molluscs, such as clam scallops, bay scallops, and sea cucumbers, mainly have two farming modes: raft farming and bottom-sowing farming. The raft culture technology mainly uses a long rope as a floating rope, and there are several large floats on the floating rope. Breeding cages are filled with farmed shellfish or ginseng. The main disadvantages of this farming model are: frequent occurrence of diseases in high-temperature seasons, low survival rate of cultured organisms, and poor wind and wave resistance of the structure. The main breeding areas are concentrated in Waters within the 20-meter isobath. Bottom-sowing breeding technology is to dire...

AI Technical Summary

Problems solved by technology

The raft culture technology mainly uses a long rope as a floating rope, and there are several large floats on the floating rope. Breeding cages are filled with farmed shellfish or ginseng. The main disadvantages of this farming model are: frequent occurrence of diseases in high-temperature seasons, low survival rate of cultured organisms, and poor wind and wave resistance of the structure. The main breeding areas are concentrated in Waters within the 20-meter isobath

Bottom-sowing breeding technology is to directly sow seedlings in the sea area. The seedlings of this breeding mode are very easy to encounter predators, the survival rate is low, and it is difficult to catch back. The labor intensity is high and the replenishment rate is low.

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