I'm throwing this in for fun. I know it's not "original" but I thought it'd be a nice change of pace in the submissions. Plus, it's ocean themed~

The Earth's seas are my seas!
The outer space's seas are also my seas!
The Oceanic Brave! Kyoryu Violet!
Kyoryu Violet is a member of the Kyoryugers, a Super Sentai team whose powers are derived from dinosaurs. Violet's power comes from Plezuon, a plesiosaurus whose habitat is the ocean. As such, his/her abilities and attacks are also ocean themed.
Kyoryu Violet was originally Dr. Ulshade. He passed the mantle onto his niece, Yayoi.