History of kelp beds (macrocystis) in Orange and San-Diego counties, California

Document Type



Areas of Macrocystis canopies, as recorded by infrared aerial photography, are presented for about 140 km of the southern California coastline for the 25 year period 1967 to 1991. Several surveys per year were conducted and the largest size canopy per year was selected for presentation. Possible effects from various influences were examined: El Nino and La Nina episodes, storms, rainfall, and human-associated influences such as discharged wastewaters.


Giant kelp; Infrared photography; Land treatment of wastewater--Environmental aspects; Macrocystis


Civil and Environmental Engineering | Environmental Engineering | Marine Biology | Terrestrial and Aquatic Ecology


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