Generally speaking, the average life span of mussels is about 2 years. If it is in an anhydrous environment, it can only survive for about 6- 12 hours in summer and 1-2 days in winter. When cultivating mussels, it should be noted that the best soil in pearl culture waters is clay, followed by river soil, and loess and sand are not suitable. The water source must be sufficient and pollution-free, the content of toxic substances shall not exceed the fishery water quality standard, and the transparency of the water body shall reach 30 cm. The light must be sufficient, so that the dissolved oxygen content will increase, and the movement and heat transfer of water will be promoted, and the color of pearls will also be affected.

First of all, mussels have the longest life span.

1. How long can mussels live?

(1) Usually, the average life span of mussels is about 2 years. If it is in an anhydrous environment, it can only survive for about 6- 12 hours in summer and 1-2 days in winter.

(2) Mytilus after death is inedible, because it will quickly secrete a kind of mucus harmful to human body.

2, mussel culture conditions

(1) soil quality

Generally speaking, clay is the most suitable soil for pearl culture waters, followed by river soil, loess and sandy soil.

(2) Water source

(1) the water source must be sufficient and pollution-free, the content of toxic substances shall not exceed the fishery water quality standard, and the water transparency shall reach 30cm.

② Water depth 1.5-4m, water temperature 18-28? C or so, PH 7-8.

(3) Dissolved oxygen

① Summer: The dissolved oxygen content must reach above 5 mg/L. ..

② Winter: The dissolved oxygen content must be above 3 mg/L. ..

(4) Lighting

Generally, in the case of sufficient light, the dissolved oxygen content will increase, and it can also promote the movement and heat transfer of water, and the color of pearls will also be affected.

Second, what do mussels feed on?

1. Mytilus mainly eats unicellular algae, protozoa and organic debris, such as rotifer, flagellate, green eye, green algae, scenedesmus, navicular algae, dinoflagellate, tetragonal algae, spindle diatom, Cladosporium, crustacean debris and plant leaves. Diatoms are easy to digest. Mytilus can't actively chase food, mainly relying on the opening and closing of mussels. The oscillation of cilia and gill cilia in the mantle causes water flow, which makes food enter the mussel body with the water.

2. After the food enters the sheath cavity with water, the particles will move up along the gill filament to the gill base, and then move forward to the labial flap. After the lip flap is selected, small particles enter the mouth, while large particles move backward from the edge of the inner gill, enter the scar of the mantle at the junction of the two gills and reach the back end, and the two shells are discharged from the body with a bang.