Marine Invertebrate and Rocky Intertidal Quick Reads

The rocky intertidal zone has a tremendous diversity of plants and animals that are sensitive indicators of environmental change. The National Park Service contributes to collaborative long-term intertidal monitoring programs along the Pacific coast. The Coastal Biophysical Inventory's rapid assessments yield quantitative snapshots of the geology and biology of an expansive shoreline.

Ocean acidification (OA) is a huge threat to marine life. But it is hard to track remotely on a large scale. So this summer, seven West Coast national parks are teaming up with the 2021 NOAA West Coast Ocean Acidification Cruise. They’ll collect water samples in-person to check several OA indicators. Their data will help paint the most detailed picture yet of OA conditions up and down the coast, from parks’ rocky intertidal zones to dozens of miles offshore.

Meet Darren Fong, aquatic ecologist for Golden Gate National Recreation Area and lead scientist for the SFAN streamflow monitoring program. Discover how Darren's fascination with aquatic life and freshwater ecosystems began and learn how he got to be where he is today.

The rocky intertidal zone, or the band of rocky shore covered up by the highest of tides and exposed by the lowest of tides, is an extraordinarily diverse and productive ecosystem. The National Park Service Inventory and Monitoring Program monitors rocky intertidal communities at five sites in Golden Gate National Recreation Area and Point Reyes National Seashore.