There are five pairs of gonads present in starfish Asterias rubens.

Gonads (testes and ovary) are well-marked in the body of the individuals. The reproductive organs of starfish don’t show the presence of copulatory organs, accessory glands, and reservoirs for storing sperms and ova. While some starfish species like Asterina gibbosa is protandric, meaning that the individuals remain male when they are young and turn to female as they become adults. Some Interesting Things To Know, Learn, And Share About DNA The following description of the reproduction in Starfish is generalized and based mainly on the starfish Asterias rubens. There are approximately 2,000 species of starfish, all of which live in marine waters of the ocean. Here, in this post we will talk about the reproduction in starfish from the zoological point of view. Metamorphosis Stage: The final stage during which the Bipinnaria larva will metamorphose by undergoing a metamorphosis Larval Development Stage – III: This is the third Brachiolaria larva stage. Larval Development Stage – II: This is the second Bipinnaria larva stage. Larval Development Stage – I: This is the first Dipleurula larva stage. Embryogeny Stage: The formation of blastula and gastrula embryo takes place from the zygote. Fertilization Stage: The fusion of egg and sperm takes place. The Reproductive Life Cycle & Development of Starfish consists of the following Stages.How do Starfish reproduce? What is their life cycle?.Introduction to Reproductive System of Starfish.

Asterias blastopore