Explanation:

 Mariculture is the term used when referring to the farming of marine species by man. The broader term called 'aquaculture' is what is used to describe all types of production of aquatic species, both seawater and fresh water. Mariculture is the commercial farming of marine organisms.

Mariculture does not include deep sea trawling as deep sea trawling is exploitation of marine specises rather than farming of marine specises.