Method for preventing and treating lichen in sea water culture pond
A technology for mariculture and aquaculture ponds, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of breeding species hazards, high cost of moss, side effects, etc., to reduce The effect of breeding cost, comfortable growth environment, and reducing transparency
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Embodiment 1
[0011] In the following, a 70-meter×50-meter culture pond, with ginseng and shrimp polyculture and bottom-seeded shellfish as an example, illustrates the prevention and control methods of moss in a marine culture pond.
[0012] The aquaculture pond is east-west, with an inlet gate on one end and an outlet gate on the other side. The water holding depth in the pond is maintained at 1.5 meters. The salinity is 25‰ and the ammonia nitrogen content is 30Vmol / l. The pH is 7.8.
[0013] At the two ends of the breeding pond, 42 wooden stakes were arranged in sequence along the direction of the water flow perpendicular to the water body in the pond at an interval of 2.5 meters, and then 21 fixed ropes were connected in parallel between the corresponding wooden stakes on both sides. The fixed rope is a polyethylene rope.
[0014] Tie 35 floats on the rope body of each fixed rope at a distance of 2 meters, and fasten multiple seedling ropes at a distance of 1.5 meters between two adjacent f...
Embodiment 2
[0020] In the following, another 80m×40m aquaculture pond is taken as an example of ginseng and shrimp polyculture to illustrate the prevention and control methods of moss in marine aquaculture ponds.
[0021] The aquaculture pond is an intertidal holding pond with inlet and outlet gates. The water is changed every month between the tides. The water holding depth in the pond is kept at 1.6 meters. The salinity is 32‰ and the ammonia nitrogen content is tested. 40Vmol / l, pH value is 8.3.
[0022] The bottom of the culture pond is relatively hard, so 34 stone mounds are placed on the bottom of the pond at a distance of 2.5 meters at a distance of 2.5 meters at the two ends of the pond, and then connected in parallel between the corresponding stone mounds on both sides. 17 fixed ropes. The fixed rope is a polyethylene rope.
[0023] It should be noted that the stone mound used for fixing can also be replaced by an iron anchor.
[0024] Tie 40 floats on the rope body of each fixed rop...
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