How are oysters born? Detailed answer

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How are oysters born? Detailed answer

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How are oysters born?

If you look at an open oyster, it will appear shapeless to you. But in fact, this is a rather complex creature that has a mouth, gills, stomach, liver, intestines and heart. There are over a hundred varieties of oysters. They differ in size, shape, behavior and… taste.

As a rule, oysters are very prolific. Some of them spawn five or six times in one season. A female oyster can lay almost half a billion eggs! Fortunately, less than one percent of them produce offspring that reach maturity, otherwise all the oceans in the world would be overflowing with oysters.

A small oyster begins to swim within a few hours after it hatches from the egg. She does not look like an adult oyster at all. In shape, it resembles a small purse with a circle of thin, swaying hairs, or cilia, on the side of the mouth. These hairs eventually fall off, and in a year the oyster is about an inch across. But before that, when the age of the young oyster does not exceed a few weeks, it is attached to a rock or some other underwater object. After a month or two, it reaches the size of a small coin.

The main problem for the oyster is to survive as it has many enemies. They are eaten by adult oysters and fish. Even larger oysters, already attached to some surface, are attacked by gastropods, which make holes in the valves of their shells and extract the pulp.

Author: Likum A.

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