The total output value of China’s main marine industries reached 1,698.7 billion yuan（～US$212.3 billion）with the added value of 720.2 billion yuan（～US$ 90.0 billion）. According to comparable price calculation, the added value increased by 12.2% as compared with the previous year and was equivalent to 3.95% of China’s gross domestic product (GDP) of the same period. The proportion of the primary to the secondary to the tertiary marine industry was 17:31:52. The added value of the primary marine industry was 120.6 billion yuan（～US$15.1 billion）, that of the secondary 223.2 billion yuan（～US$27.9 billion）and the tertiary 376.4 billion yuan（～US$47.1 billion）.

Various main marine industries maintained a tendency of steady growth. The coastal tourism, marine fishery (and related aquaculture), and marine transport and communications, as three pillar marine industries, occupied nearly three-fourths of the total output value of the main marine industries, with the coastal tourism ranking first among the main marine industries. Emergent marine industries such as marine power generation and sea-water multi-purpose utilization developed rapidly and their position in marine economy was gradually raised.

The economy of China’s sea areas grew persistently and rapidly. The total output value of the main marine industries of the circum-Bohai Sea economic zone was 551.0 billion  yuan（～US$68.9 billion）, accounting for 32.4% of the total output value of China’s industries; the sum of the output values of three pillar marine industries— marine fishery, coastal tourism and marine transport and communications— occupied 69.8% of the total output value of the zone’s main marine industries. The total output value of the main marine industries of the Yangtze River Delta economic zone was 586.0 billion  yuan（～US$73.3 billion）, making up 34.5% of the total output value of China’s main marine industries; the sum of the output values of the above-mentioned three pillar marine industries constituted 74.3% of the total output value of the zone’s main marine industries. The total output value of the main marine industries of the Pearl River Delta economic zone was 300.0 billion yuan（～US$37.5 billion）, amounting to 17.7% of the total output value of China’s main marine industries; the sum of the output values of five pillar marine industries — coastal tourism, marine fishery, marine power, marine oil and gas, and marine transport and communications — accounted for 93.9% of the total output value of the zone’s main marine industries.

The marine management began to proceed in conformity with the law. New progress was made in the management of sea areas. The Interim Measures for the Management of Specially Protected Sea Areas was promulgated, regularizing the procedures of application for such protected sea areas. A total of 6,887 licenses for sea area use were issued; the right of use was established for 273,000 hectares of sea areas; and 1.05 billion yuan（～US$131 million）of fees for using sea areas was collected. The compilation of provincial-level marine functional divisions and related application for approval were further pushed forward. Law enforcement and supervision on sea were constantly intensified. In the year 2005, 12,226 projects of various kinds were inspected and decisions of administrative penalty for 1,869 cases were made.

The survey of sea area boundaries was steadily promoted. A total of 120 boundaries of inter-county marine administrative divisions were surveyed and defined, accounting for 50% of China’s total of such boundaries. The offshore investigation of boundaries of inter-provincial marine administrative divisions was fully accomplished, and relevant provincial people’s governments formally signed the Agreement on the Boundaries of Marine Administrative Divisions for the northern Tianjin-Hebei line, the southern Tianjin-Hebei line and the Guangdong-Guangxi line.

China’s sea areas whose water failed to attain the quality standards of clean sea water totaled 139,000 km2 , and the general pollution status of China’s sea areas did not take a turn for the better.

Measures on preventing and mitigating marine hazards were further improved. In 2005, 82 red tides were reported in China’s sea areas, a 15% decrease over the previous year, and the cumulative area of the red tides was about 27,070 km2 , basically equaling that of the previous year; and direct economic losses caused by them exceeded 69 million yuan（～US$8.6 million）.