[Sea Cucumber] Common Problems in Sea Cucumber Ponds in March!

2018-04-03

In March, with the rise of temperature, the water temperature in some aquaculture ponds reached more than 5 degrees, and sea cucumbers began to crawl and feed one after another. Through investigation, it was found that the following problems were prone to occur during this period: 1. yellow tuber grows in large quantities, the scientific name of yellow tuber is golden membrane algae, which is no stranger to sea cucumber farmers. It belongs to low-temperature algae and can be attached to the bottom, pool edge, tiles and net cage. When the water temperature reaches 3 ℃, it can grow, multiply at 10 ℃, reach the peak of reproduction at 15 ℃, and then begin to decay and rot. The rotten algal body ingested by sea cucumber will cause spit intestines, swollen mouth and skin. Yellow tube attached to tile
In March, with the rise of temperature, the water temperature of aquaculture ponds in some areas reached more than 5 degrees, and sea cucumbers began to climb and feed one after another. Through investigation, it was found that the following problems were prone to occur during this period:
1. yellow tubers grow in large quantities
The scientific name of yellow tuber is golden membrane algae, which is already familiar to sea cucumber farmers. It belongs to low-temperature algae and can be attached to the bottom of the pool, the edge of the pool, tiles and net cages. When the water temperature reaches 3 ℃, it can grow, multiply at 10 ℃, reach the peak of reproduction at 15 ℃, and then begin to decay and rot. The rotten algal body ingested by sea cucumber will cause spit intestines, swollen mouth and skin.
 
 
Yellow Tubes Attached to Tiles
 
 
Yellow tube rotting at the bottom of the pool
 
 
The sea cucumber vomited its intestines 1 day after ingestion of rotten yellow tuber
 
 
The sea cucumber swelled its mouth and skin after 3 days of ingestion of rotten yellow tuber.
 
Treatment plan: 1. When the water temperature is lower than 10 degrees, use 1 bag -2 bags/mu of moss for quick extinction or 1 bag/mu of new moss net. According to the decay of algae, use strong decomposition bottom to change to 6-8 mu/bag to decompose rotten moss in time.
2. If the yellow tuber has rotted and the sea cucumber has swollen mouth and skin after eating rotten moss, weideli 2 mu/bottle of Zhongren gold iodine 3 mu/bottle can be used, and stress detoxification CE mu/bag can be used 2 days later to accelerate the recovery of sea cucumber.
2. deposition of cow hair moss
The scientific name of cow hair moss is Shuiyun, which belongs to low temperature moss, has high degree of fibrosis and is not easy to rot completely. It is mostly attached to net cages and stones. Its harm is to occupy space. Sea cucumbers are not easy to eat and digest, and it is easy to cause black background.
 
 
The bottom of the pool is covered with decaying and rotten cow hair moss.
 
 
The bottom of the pool to which the cow hair moss is attached turns black
 
Treatment plan: if the cow hair moss is in the vigorous growth period, use moss to quickly destroy 1-2 bags/mu. after the algae body dies and corrupts, use weideli 3 mu/bottle to decompose the bottom to 8 mu/bag, decompose rotten grass, and treat the bottom black. (Note: Compared with other moss, bovine hair moss is tough and difficult to decompose, and needs to be gradually decomposed after many times of bottom modification)
3. pool bottom mud skin more
After winter, the bottom of the pool is not properly treated, resulting in organic matter deposition. After spring, the water body has high transparency and mud skin will grow at the bottom of the pool. The mud is mainly composed of some green filamentous algae, benthic microalgae and sedimentary organic matter. Under normal circumstances, sea cucumber can also be ingested, and its main harm is to affect the water flow and dissolved oxygen exchange at the bottom of the pool, which is easy to cause black background.
 
 
Treatment plan: 1. Use 2 mu/bag of concentrated Bacillus once before winter to decompose organic matter in water body and reduce organic matter deposition. The next spring can effectively avoid mud skin in ponds.
2. After mud skin appears, new moss grass can be used to decompose the bottom with strong effect, and the places with more mud skin can be mainly scattered.

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