미국
CRED REA Coral Population Parameters at Johnston Atoll, Pacific Remote Island Areas (PRIAs) in 2008
Belt transects along 2 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 4 sites at Johnston Atoll in the Pacific Remote Island Areas (PRIAs) during 24 January - 14 February 2008 in the NOAA Hi'ialakai (HI0801) Reef Assessment and Monitoring Program (RAMP) Cruise. Raw survey data included species presence and relative abundance, colony counts and size classes by genus, and determination of benthic cover using the line-intercept method. Depending on colony density, 1 m on each side of the transect lines was included in the belt (for a total of 25-50m2 per site).