These data describe the abundance of macroalgae in quadrats at Cabritte Horn in St. John from 1992-2020. The percent cover for macroalgae is used to test for an association with Millepora abundance.
Abundance of macroalgae was examined by measuring percent cover at Cabritte Horn on the south shore of St. John, US Virgin Islands across three decades. Photographic sampling of quadrats was performed annually from 1992 to 2020 using cameras mounted on a framer at a fixed height above the reef. Color slide film was used from 1992–2000 (and digitized at 4000 dpi), with digital photography implemented in 2001. Photoquadrats were recorded at random positions along the transect, which was 20 meters long from 1992–1999 and 40 meters long from 2000 onward when the sample size was increased to ~40 photoquadrats per year.
For details on association with Millepora spp., see Related Datasets section below. To access images, see Related Publications section below for link to Coral Image Downloads and Viewer (Cabritte Horn images under "Random Sites")
Edmunds, P. J. (2022) Abundance and percent cover of macroalgae at Cabritte Horn (St.John, US Virgin Islands) from 1992-2020. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2022-06-10 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.875543.1 [access date]
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