This is describing Saturn! Saturn is the second largest planet in our solar system and is a gas giant. Saturn also is famous for its rings. Another fast about it is that it's the sixth planet from the Sun.
Answer: Phytoplanktons are photosythetic organisms found near ocean surface and provide food to a wide variety of sea creatures like whale, shrimp, jelly fish etc. They also rely on nutrients such ad nitrates, phosphate for their development. They maintain a balance ecosystem and food web in ocean.