Comparison of Bull Kelp coverage survey methods over time in the San Juan Archipelago

Abstract

Bull Kelp forests are an important habitat in the Salish Sea. They provide critical habitat for a wide variety of species including newly listed rockfish. Yet little data currently exists to determine overall canopy coverage or trends in kelp coverage. In 2017, the Samish Indian Nation initiated a project to compare baseline kelp coverage with Traditional Ecological Knowledge from Tribal Fishermen and a 2006 remote sensing survey conducted by Friends of the San Juans. Using a combination of aerial photography analysis, boat based surveys and NASA satellite imagery, this project seeks to gain a unique perspective on kelp forest trends in the San Juan Islands portion of the Salish Sea. Information gathered will be utilized to inform kelp restoration activities as a part of the rockfish recovery plan sponsored by NOAA and others to enhance this critical habitat and its occupants

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