Pacific Ocean: Reproducers And Decomposers?

It's hard to find this nformation in the net....if you would like to help then give me the info please and if you don't then don't answer the queston at all!!!!
i need types of fish and what they eat

What exactly is the question?

Do you want a list of animals that are Reproducers and Decomposers? Plants?

Do you want to know their function?

How can we answer if you don't ask a proper question...