미국
CRED REA Coral Population Parameters at Pearl and Hermes Reef, Northwestern Hawaiiian Islands, 2002
Belt transects along 2 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 14 sites at Pearl and Hermes Reef in the Northwestern Hawaiian Islands in September, 2002 from the NOAA vessel Townsend Cromwell (TC02-07). Raw survey data included genus presence and relative abundance, colony counts and size classes, and visual estimation of percent cover. Either 0.5m or 1m on each side of the transect lines were included in the belt (for a total of 50m2 or 100m2 per site), depending on colony density.