Farming of oceans is called just that. It is usually referred to as ocean fish farming as well.
By farming or fishing.
They used them for protection and farming.
Fishing the Ocean, and Farming the Ocean
Scientists who study earth's oceans are called oceanographers.
large water bodies of rivers are called as oceans!!!
a Spanish farming village was called a Royal Road village...
A farming degree is a degree in agriculture.
Large, self-sufficient farming estates were called Manors!
Farming that provides only enough food for the farmer and his family and none for market is called subsistence farming.
Currents
Agriculture.
Arable