How do shellfish reproduce?
Shellfish generally refers to oysters, mussels, clams, snails and other animals, a wide variety of species, widely distributed. The way of reproduction is also different, so how do shellfish reproduce?
First, how to reproduce shellfish?
The way shellfish reproduce varies from species to species. Such as direct oviposition, oviposition after mating, oviparity, infancy and so on. And some species of shellfish reach sexual maturity on the first anniversary, with a lifespan of only 1 year, such as some species of naked Gill and cephalopod. Some species have a long life span, but most of them reach sexual maturity in one year. The growth rate varies with species and environmental conditions.
What are the common shellfish?
1. Oyster
Oyster is commonly known as oyster yellow, oyster, oyster and oyster.
two。 Mussel
Mussels, also known as Haihong, also known as Qingkou, can be steamed and cooked, or they can be mixed with other vegetables after shelling. At present, there are vast aquaculture areas in Shandong, Liaoning, Zhejiang, Fujian, Guangdong, Hainan and other coastal provinces in China.
3. Clam
Clam A general term for edible bivalve shellfish, also known as clams, and beetles. 12000 species are known, of which about 500 species inhabit fresh water and the rest are marine. Usually inhabit a sandy or muddy bottom.
4. Snail
A gastropod that existed before the Cretaceous, especially one that has a closed shell into which it can be completely retracted for protection.
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How do squirrels spend the winter?
Pine trees are very cute little animals. They have big furry tails and two big front teeth. They will hold pine cones and gnaw them. So, how do squirrels spend the winter? How do squirrels spend the winter? Squirrels will store them in their holes before winter comes.
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How to use the peacock fish breeding box?
Wash and disinfect the breeding boxes bought or made by yourself, put them into the fish tank, and then put the peacock fish that need to be isolated. Because breeding boxes are generally used to hatch and isolate peacock fish, they can avoid injuries caused by fights and
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