What are the methods for seafood farming? Water temperature control is key

SummaryLobster: It is advisable to choose water quality that is pollution-free and rich in dissolved oxygen, while controlling the water temperature at around 20°C and the salinity at around 25°. The stocking time for shrimp fry is spring and autumn. Before stocking, they need to be soaked in salt water for disinfection, and the food needs a mix of meat and vegetables. Grouper: It is very sensitive to temperature, and the suitable growth temperature is around 25-30°C, with salinity at around 25°. All groupers can be mixed-cultured. Shellfish: They can be kept dry or in water, as long as the temperature is controlled at around 0°C.

I. Lobster

1. Water quality requirements

Lobsters have very strong adaptability. During farming, it is best to choose relatively pollution-free water quality, and the dissolved oxygen in the water must be abundant. If the water is not turbid, it is enough to change the water once every three months. As for the water temperature, it cannot be too low. The best water temperature is maintained at around 20°C, and the salinity is about 25°.

2. Pond disinfection and fertilization

Pond disinfection is mainly done by splashing quicklime into the pond. Quicklime can play a disinfecting role, remove harmful substances, and also reduce pathogens and parasites. Applying an appropriate amount of fertilizer in the pond can cultivate microorganisms and plankton in the pond, so that lobsters can feed freely. However, when fertilizing, the amount should not be too large, and the amount of fertilizer needs to be determined according to the area of the pond.

3. Stocking shrimp fry

The stocking time for shrimp fry can be chosen in spring and autumn. It is best to choose shrimp fry of similar size and put them in all at once. Before stocking, the shrimp fry need to be soaked and disinfected in salt water, which can eliminate some parasites and bacteria they carry.

4. Management

Planting an appropriate amount of aquatic plants in the pond can increase the dissolved oxygen in the pond, and can also lower the water temperature during hot summer weather, providing places for lobsters to rest and shade. However, when planting aquatic plants, they should not be planted over too large an area. It is best not to exceed one-half of the pond area.

When feeding lobsters, you can choose broken-shell river snail meat, freshwater mussel meat, animal offal, etc. The food needs a mix of meat and vegetables and should not be too monotonous. Meat ingredients can be mixed with plant feed such as wheat and corn for feeding. The number of feedings depends on their growth condition and the weather. Generally, feeding 2-3 times a day is enough.

II. Grouper

1. Grouper includes grouper, leopard coral grouper, humpback grouper, and so on. Grouper is very sensitive to temperature, and in winter the water temperature needs to be especially well controlled. The suitable growth temperature is around 25-30°C.

2. For water quality, it is also best if it is pollution-free and highly transparent. The water should also be changed frequently, and the salt water concentration should be maintained at about 25°.

3. For pond farming, it is best to imitate the sea area. The bottom substrate is best sand or semi-sand, and the pond water should reach more than 1 m.

III. Shellfish

Shellfish include scallops, blue mussels, scallops, and sea snails, and so on. They all belong to species that prefer relatively cold water temperatures. Shellfish can adapt to 2 farming methods, namely dry keeping and water keeping. Both farming methods require the temperature to be controlled at around 0°C.

For dry keeping, crushed ice needs to be packed together with the shellfish, and then stored in a 0°C environment with ice added at any time according to the temperature.

For water keeping, it is best to use flowing water, and the salt water concentration is best controlled at around 20°.