The following is a summary of the Coastal Biodiversity Survey (CBS) sampling protocols. For the complete protocols and all other data sheets in PDF format please go to Protocols and Data Sheets.

Site Selection

Site location is selected based on many factors. Initially the surveys were conducted on rocky intertidal reefs where PISCO, MARINe, and other research groups had already initiated intertidal studies. Additional sites were selected for their proximity to known regional biological boundaries caused by geo-oceanographic features. Sites have been added to fill in gaps and create a more even spacing along the coast. Some long stretches of beach, mud flat, cobbles/boulders, and/or sheer cliff have left natural gaps between sites, most noticeably in the northern regions.

The ideal location to conduct a Coastal Biodiversity Survey (CBS) is a rocky intertidal bench that is at least 30 meters wide (along the shore) and gently sloping from the high zone to low. It is important to select an area where the composition of the community is representative of the site. The site should be representative of the surrounding area. The photo below is a typical site set up with one continuous baseline or survey section.

Andrew Molera

The survey site may also be split into two sections with sets of transects totaling 30 meters in different locations on the rocky bench.