¡¡¡¡BEIJING, April 24 (Xinhuanet) - One of China's major provincial fishing grounds, east China's Zhejiang province, has been warned to expect more red tides (algal blooms) this year, according to the China Daily Thursday.

¡¡¡¡"Red tides are predicted for the province's offshore waters as early as late April," said an official surnamed Zhang with the provincial oceanographic and fishing authority.

¡¡¡¡Some major fishing grounds in Zhejiang, including Zhoushan fishing zone, Xiangshan Bay and the offshore waters of Taizhou, have been urged to enhance their vigilance against red tides.

¡¡¡¡Zhang recommended local people engaged in fishing and aquaculture listen to relevant forecasts and tailor their activities accordingly, namely, promptly adjusting the density of farmed marine life in line with changes in accumulated nutrients in the water.

¡¡¡¡Red tides are usually algae and protozoa that kill fish and other marine life either by releasing lethal toxins or by taking up most of the oxygen in the water, which do great harm to fishingand aquaculture industries.

¡¡¡¡Zhejiang province aims to achieve 20 billion yuan (2.4 billion US dollars) from marine industries this year, which is 7.5 percentof the province's gross domestic product. Enditem