The invention provides a hexagrammos otakii-seaweed comprehensive culture net cage and a culture method, and relates to the field of net
cage culture. The hexagrammos otakii-seaweed comprehensive culture net cage comprises a fish culture net cage and an algal
reef raft frame, and the fish culture net cage comprises a netting, a cage frame, a
buoyancy device and a sinker; and the algal
reef raft frame is installed in the fish culture net cage and comprises a vertical rod, a bearing frame,
seedling hanging frames, a fixing hook, an
artificial reef body, a first lifting
rope, a
seedling rope, a small falling stone, a second lifting
rope and a small floating ball. The bearing frame is located at the bottom of the algal
reef raft frame, and a plurality of
artificial reef bodies are fixed to the bearing frame. The
seedling hanging frames are positioned on the left side and the right side of the middle upper part of the algal reef raft frame; and a plurality of seedling ropes are hung below the seedling hanging frames. The invention further provides a culture method using the comprehensive culture net cage, hexagrammos otakii are cultured in the net cage, and seaweeds are cultured on the seedling ropes. Compared with traditional net cage single culture of the hexagrammos otakii, the
survival rate and the
growth speed of the hexagrammos otakii are improved, meanwhile, the seaweeds are harvested, and the method is an ecological and efficient culture method.