Nan 'ao Island is located at the junction of Fujian and Guangdong, at the southwest mouth of the Taiwan Province Strait, outside the mouth of the Han River. The Tropic of Cancer passes through Nan 'ao Island. There are many islands, reefs, strong upwelling and complex biological population structure, and specialty products are the essence of seafood products in the South China Sea. There are many kinds of shellfish produced locally. "Dried shellfish" are wild mussels in deep-sea areas. After peeling, it is boiled with salt, then air-dried on the back of the sun, and then put into a sealed container to make it dry and shrink. It can be eaten after half a year. Scallops are easy to preserve and are a good gift for relatives and friends. Crafts include all kinds of pearl ornaments: door curtains, necklaces, pearl pendants, etc. The decoration made by local people with flat snail (a snail that glows at the bottom of the sea) is a combination of local specialties and handicraft art. A specimen made of lobster shell can be made into a small scene with a few pieces of sea stones and corals, which is very memorable and ornamental.

"House squid" is a household name in Southeast Asia, Hong Kong, Macao and Chaoshan.

Nan 'ao is the only island county in Guangdong Province and the only fishery county in Guangdong Province. In the past year, the superb squid fishing technology was famous all over the country. It crossed Hainan at 1985, and the ability of sailing with double sails stunned the fishermen in the north.

Because Nan 'ao County is located at the junction of Fujian and Guangdong, at the southwest mouth of the Taiwan Province Strait, outside the mouth of the Han River, the Tropic of Cancer runs across Nan 'ao Island. There are many islands and reefs, strong upwelling, high-temperature and low-salinity fresh water discharged from eastern Guangdong, low-temperature and low-salinity coastal water from Fujian and Zhejiang, high-temperature and high-salinity surface water from the west branch of Taiwan Province Province, high-temperature and high-salinity surface water from the South China Sea and low-temperature and high-salinity low-level water from the South China Sea. The water is rich in nutrients and plankton. At the same time, different water systems have different biological populations and complex sediments, thus forming the phenomenon that the structure of biological populations is very complex, which is really a rare museum of marine life world. More than 700 species of fish, 40 species of shrimp and crab, 500 species of shellfish and nearly 100 species of algae have been identified. It is an ideal place for fish, shrimp and shellfish to inhabit, breed and find bait, and it is also a necessary place for many fish and shrimp to migrate.

In the dead of winter, you can catch bamboo pod fish, pomfret, red snapper, grouper, ocean mackerel, mackerel, sea shark, hundreds of pounds of sunfish, swordfish and tuna, which are nutritious and delicious. Sometimes, you can catch rare Chinese sturgeon and bearded plover. In summer, squid, cuttlefish, red snapper, Balang and other floating fish. More popular. There are all kinds of common shellfish here, such as oriental snail, dog snail, mud clam, clam, flower clam and so on. Moreover, you can also catch crested crescent snails near the north, and you can also pick up French snails near the tropics. As for abalone, pearl, giant salamander and so on, there are all kinds of soft fish, scattered squid, octopus and cuttlefish. There are 8 species of lobsters in China, including 6 species in China, variegated lobsters, splendid lobsters, dense-hairy lobsters, and various kinds of prawns in China waters. Among the algae, laver, kelp, rock flower, Gracilaria, sea radish, coral reef, Sargassum and so on. Are all complete.

The fishing industry here has no off-season, and only catches different species. The sediments here are complex and there are many kinds of fish and shrimp. So the homework here includes dragging, fencing, fishing, stabbing and miscellaneous things. The environment makes people, and the fishermen here have also trained 18 martial arts masters. With the mechanization, telecommunication and electronization of fishing boats, the fishing grounds operated by fishing boats in South Australia are expanding and the fishing output is increasing. Now, the annual fishery output in South Australia has reached 80,000 tons.

The biological population structure here is complex and rich, the food chain will not be short of links, and the food tower is rich and complete. So all kinds of creatures grow fast, fish and shrimp are particularly delicious, and fish fat is particularly nutritious, so it is particularly nourishing and expensive. Porphyra is not only high in protein, but also nutritious, especially fresh, sweet and delicious. Some squid skins are bitter and sour, and some squid skins are bitter and sweet. Most of the squid here are Huasong squid and Jianjian squid, with sweet and delicious skin. Besides abalone. Although the variegated abalone here is smaller than the big abalone and not as good as the green abalone, it tastes particularly sweet and refreshing.

There are many islands and harbors, which is another feature of South Australia. There are many bays, and cage fish culture has unique conditions. 1984 South Australia is the earliest place to carry out cage culture, and the cage culture of grouper in South Australia also won the second prize of provincial science and technology and the excellent prize of the seventh five-year National Spark Plan Achievement Expo. At present, there is a fishing village at sea in Liedao Bay, Shenao Town, where not only groupers are cultured, but also red snapper, black snapper, flat snapper, yellow-finned snapper, grouper, red snapper and red snapper. ? More than ten kinds of fish such as yellow croaker and egg-shaped pomfret are cultivated here. The fish raised here are not only found in Chaoshan market and hotels, but also exported to Hongkong, Macau, Taiwan Province Province and Japan.

Lion Bay Pearl Farm is a newly developed project in recent years. But the pearl shell grows very fast, and the pearl layer is particularly beautiful. This project with an annual output of half a ton of pearls is not only a bright pearl, but also dazzling.