Purpose
Bull kelp (Nereocystis luetkeana) beds are an important ecological component of the nearshore, providing food and shelter for many animals such as fishes, crabs, marine mammals, and birds. Kelp is also an important fixer of carbon as a primary producer. Kelp beds may change depending on water quality, sedimentation, water temperature, and grazing by herbivores.
Protocol
See the protocol for monitoring bull kelp from a kayak by the Northwest Straits Commission, which details measuring area of kelp beds. Also see a one-page version by the Vashon Nature Center.
Additional information on kelp and monitoring in Puget Sound can be found at the WA State Floating Kelp Indicator, the DNR website and their Marine Vegetation Atlas, and at the Puget Sound Restoration Fund.