A distinct variation of a species which occupies a certain habitat.
The process of one species evolving into multiple species. Though speciation may occur as the result of drastic changes, elk kelp may be slowly speciating due to habitat specialization of the various ecotypes.
An ecosystem in the neritic zone, a zone which lies below low-tide but is still near the coast. Includes large primary producers such as kelp that form a forest-like structure.
A collection of finger-like projections at the base of an alga or kelp that attach the organism to the substrate.
A bulb-like, gas-containing structure found on brown algae which allows a portion of the organism to float and thus receive greater sunlight.