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Abundance of Rocky Reef Fishes, Invertebrates and Algae, Reef Check California (RCCA), 2006 - 2017.


Data in this collection include the abundance of organisms observed during Self-Contained Underwater Breathing Apparatus (SCUBA) diver surveys conducted by Reef Check California (RCCA) volunteers in nearshore, rocky reef environments along the coast of California between 2006 and 2019. After completing training through RCCA, volunteer teams of divers select survey sites and perform surveys according to RCCA standard protocol. Since its inception in 2006, RCCA trained divers have conducted thousands of these surveys at hundreds of sites, including sites within more than 50 State Marine Reserves and State Marine Conservation Areas. At each site, buddy teams of divers conduct 18, 30 m x 2 m benthic transects to monitor key species of [...]


Contact :
Diana LaScala-Gruenewald
Principal Investigator :
Jan Freiwald
Processor :
Diana LaScala-Gruenewald
Publisher :
Abigail L Benson

Attached Files

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2.7 MB text/csv
43.46 MB text/csv
147.43 MB text/csv
Abundance of Rocky Reef Fishes Invertebrates and Algae Reef Check - ISO 19110.xml 32.35 KB application/xml
REEF_CHECK_CALIFORNIA_Manual_9th_Edition_with_cover.pdf 18.05 MB application/pdf


The kelp forests and rocky reefs of California's coast are home to a vast array of marine organisms that many Californians regularly enjoy and many others depend upon for their livelihoods. Unfortunately, the rapid growth of California’s population and the resulting impacts of coastal development, pollution, and overfishing have placed increasing demands on our nearshore resources. Global issues such as climate change and resulting ocean warming and acidification add to the pressure put on our nearshore environment. Many species that were once abundant have virtually disappeared from our reefs. Reef Check California (RCCA) is building a network of informed and involved citizens who support the sustainable use and conservation of the Golden State’s nearshore marine environment. The RCCA program has two primary goals: to produce data that can be used for the management and conservation of California’s kelp forest and rocky reefs and to involve the public in the scientific process to foster an educated public, supportive of science–based management and ocean stewardship. These data were collected as part of an ongoing effort to meet these goals by monitoring ecosystem-level processes including changes in kelp forest communities through time, regime shifts (e.g. from kelp forests to urchin barrens), and invasive species.

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Alternate Titles

  • rcca_transects

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