Cyanobacteria (Blue Green Algae) is a phylum of Bacteria. There are 4190 species of Blue Green Algae, in 451 genera and 58 families. It includes groups like Oscillatoriales, Spirulinales, and Gloeobacteria.
Definition: Living in the fluid medium (water or air) but unable to maintain their position or distribution independently of the movement of the water/air mass (adapted from Lincoln et al., 1998).
Definition: This organism produces this material or substance, either during its life or after death. A produces B if some process that occurs in A has output B.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)