Vydavatel National Oceanic and Atmospheric Administration, Department of Commerce
Datum vydání před téměř 10 roky
US
beta
Shrnutí
Popis
Belt transects along 1 or 2 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 9 sites at Ta'u Island in American Samoa in March, 2006 from the NOAA vessel Hi'ialakai (HI06-02). Raw survey data included colony counts and size classes by genus, and visual estimation of percent cover. Half a meter( 0.5m) on each side of the transect lines were included in the belt (for a total of 25m2 or 50m2 per site), depending on colony density.