Starfish are a group of marine animals, they have different types. Most starfish are dioecious, but a few are hermaphrodite. The reproductive modes of these two kinds of starfish are different:
1. Dioecism: Most starfish belong to this type. The starfish typically has 10 gonads, made up of grape-shaped tubes. The gonads of male starfish are generally white, while those of female starfish are generally orange. They can produce reproductive cells. During the breeding season, females lay eggs and males produce sperm, both in seawater. These fertilized eggs go through cleavage, develop into blastocysts, and then into the gastrula stage, when they can begin to swim freely. After that, they will gradually develop into complete starfish.
2. Hermaphrodite: Hermaphrodite starfish are relatively rare, and they use different reproductive methods. Generally speaking, when the starfish is relatively young, the male reproductive cells are produced first; When they grow up, they will then produce female reproductive cells. These two types of germ cells can combine and reproduce.
Starfish will breed in the right breeding season, specifically when the water temperature is more suitable. Especially at 26-28 degrees, it is most conducive to the growth of starfish and the reproduction of starfish. Starfish breed more from the end of spring, and the temperature is more suitable throughout the summer, so summer can be the peak of their reproduction.
