Shoals are a group of fish that swim together. The Shallow Sea has a lot of Shoals. The Deep sea has some as well. Both the Deep Sea and Shallow Sea have animals. They both have dolphins and whales that swim together when hunting. The last similarity is how the Indian and Pacific Ocean trade nutrients. This is a similarity because the Deep Sea is in the Pacific Ocean. The Shallow Sea is in the Indian Ocean. When the two trade nutrients they end having the same.