Abstract: Mangrove locates at the interface between land and sea, and is likely to be one of the first ecosystems to be affected by global climate change. Its distribution area would be enlarged with raising temperature. The most important effects of global climate change on it would be the rising sea levels. Most mangroves will benefit from increased CO₂ via higher photosynthetic rate, water use efficiency, and growth rate. At relatively low light level, the photosynthetic rate of mangroves tends to increase. The strategies to deal with these changes were put forward.

Key words: Marine bacteria, Alexandrium tamarense, Paralytic shellfish poison