marine food chain

'Red tide' - tiny aquatic organism during algal blooms, can bring about greater destruction than what people think about it, with the possibility of poisoning the entire food

The organism was identified after scientists dug up a 25cm long skull including large teeth and many sharp little teeth inside.

Plankton are the foundation of the marine food chain, they need sunlight to carry out photosynthesis as well as other nutrients like nitrate, phosphate and iron to feed themselves.

Greenhouse gas seems to be changing the food chain at sea: CO2 in the atmosphere has a big impact on small bacteria.