Some articles on kelp, kelps:

Kelp Forest - Ecosystem Architecture
... The architecture of a kelp forest ecosystem is based on its physical structure, which influences the associated species that define its community ... the ecosystem includes three guilds of kelp and two guilds occupied by other algae Canopy kelps include the largest species and often constitute floating canopies that extend to the ocean ... Macrocystis and Alaria) Stipitate kelps generally extend a few meters above the sea floor and can grow in dense aggregations (e.g ...