Rocky Intertidal Long-term Monitoring

The Mediterranean Coast Network Inventory & Monitoring Program oversees the rocky intertidal monitoring protocol. The protocol is being implemented at Channel Islands National Park and Cabrillo National Monument. A variety of species or groups of species, including owl limpets (Lottia gigantea), black abalone (Haliotis cracherodii), and ochre sea stars (Pisaster ochraceus), are monitored at each site by park scientists twice each year. The parks follow data collection protocols of the Multi-Agency Rocky Intertidal Network (MARINe) program, a regional consortium of government and non-government entities established to standardize the collection of rocky intertidal data throughout the Pacific coast thereby providing a broader regional perspective on marine ecology. The data helps park managers better understand species dynamics, their ecosystem, and the issues they face. Understanding seasonal distribution patterns can also help them decide the best times to allow visitors to access these sites.

Channel Islands National Park
Long-term monitoring program of rocky intertidal areas began in 1982. Twenty-two monitoring sites on five islands were established. Learn more

Cabrillo National Monument
In 1990, following protocols being implemented at Channel Islands National Park, Cabrillo National Monument began a long-term monitoring program of their rocky intertidal areas. Three permanent long-term monitoring sites have been set up. Learn more