Marine life: grouper, red fish, hairtail, nod fish, sardine, large yellow croaker, ray, pomfret, silver pomfret, sea turtle, sea cucumber, seashell, electric eel flounder, turtle, carp, shark, whale and crocodile.

The Persian Gulf is known as the "world oil treasure house", which is endowed with unique oil resources.

Chinese geologists believe that only the Zengmu shoal basin in Nansha Islands is one of the best areas for oil and gas development in the South China Sea. With a reserve of about 20 billion tons, it is known as the "second Persian Gulf".

Moreover, the Nansha Islands are also rich in oil and natural gas, iron, copper, manganese, phosphorus and other energy minerals. Among them, oil and gas resources are particularly rich, with a geological reserve of about 35 billion tons, which is known as the "second Persian Gulf". It is mainly distributed in more than a dozen basins such as Zengmu shoal, Wan 'an West and Beiletan, with a total area of about 4 1 10,000 square kilometers. Only Zengmu shoal basin has oil gas reserves of about 126 to 137 million tons. There are also ocean dynamics: tidal energy, wave energy, ocean current energy and seawater due to temperature difference and salinity difference.