How do mussels reproduce?

Clam is a common animal in freshwater lakes, ponds and rivers. Meat can be eaten, and it can also be used as bait for birds and fish. How do clams reproduce?

First, how does the clam reproduce?

During the breeding period, the female mussel will discharge the mature eggs into the mantle cavity through the reproductive pore, and then the mature sperm of the male clam will be excreted from the vas deferens to the suprabranchial cavity through the reproductive pore, and then into the water body outside the body through the outlet pipe. The spermatozoa enter the outer cavity of the female clam with water and combine with the eggs waiting for pregnancy to complete fertilization. The fertilized eggs undergo embryonic development on the outer Gill valves on the left and right sides of the female clam.

Second, how to cultivate mussels?

1. Culture methods: at present, hanging culture and cage culture are mostly used in clam culture. The methods of hanging and raising include single raising and string raising of more than two clams on the same line. The number of cages depends on the size of the cage (net cage, net clip), and it is generally appropriate that each clam can touch the bottom of the cage.

2. Stocking density: the general mu culture ponds of pearl clams are 800,800 and 1200, respectively. The culture density depends on the body weight and fatness. The physical, chemical and biological factors such as water flow and water depth increase or decrease appropriately with the size of the mussel.

3. Strengthen water quality management: when raising mussels in closed still waters without running water, it will cause anoxic death after high temperature, shallow water and low pressure. Therefore, it is necessary to add water in time, change water or maintain fresh water quality and sufficient oxygen content, so as to avoid slow growth of mussel and beads under hypoxia and hypoxia.

4. removal of attachments: after being hoisted for a period of time, pearl clams often attach a large number of attached mud and organisms (such as algae, freshwater sponges, condensed worms, etc.) to net cages, net bags and mussel bodies, which affect the growth of pearl clams and must be cleaned regularly. Rinse every other month from April to October.