The diagram highlights the life cycle of fish.
Overall, there are four stages, starts with eggs and ends with adult fish which able to lay an eggs and this cycle repeats.
First of all, eggs are laid in the water. After being laid, the eggs develop and hatch into larvae. After that larvae looks like small fish and not fully grows. And then Juvenile fish appears, it looks like just an adult fish, but little small.
The next step is that Juvenile fish continue to grows and after some time, it turn into an adult fish. An adult fish is fully mature and able to lay an egg. Finally, adult fish lay eggs in the water and it grows and develops and reproduce and start cycle again.
