Liu Xianfa (L front), China's consul-general to Lagos and E. A. Ajao (R front), director of the Nigerian Institute of Oceanography and Marine Research announce the sailing of Chinese scientific research ship Dayang Yihao at the Apapa Harbor in Lagos, on Aug. 21, 2012. Chinese scientific research ship Dayang Yihao, or Ocean One, on Tuesday started its nine-day exploration and research mission in Nigeria's waters with Nigerian and Chinese scientists. (Xinhua/Chen Shupin)

Chinese scientists attend the launching ceremony for the sailing of Chinese scientific research ship Dayang Yihao at the Apapa Harbor in Lagos, on Aug. 21, 2012. Chinese scientific research ship Dayang Yihao, or Ocean One, on Tuesday started its nine-day exploration and research mission in Nigeria's waters with Nigerian and Chinese scientists. (Xinhua/Niu Xiaoxi)

Chinese scientific research ship Dayang Yihao leaves the Apapa Harbor in Lagos, on Aug. 21, 2012. Chinese scientific research ship Dayang Yihao, or Ocean One, on Tuesday started its nine-day exploration and research mission in Nigeria's waters with Nigerian and Chinese scientists. (Xinhua/Niu Xiaoxi)