Summary sponge abundance on the coral reefs of St. John USVI from photoquadrats taken between 1992 and 2017

<p>Sponge abundances on the shallow coral reefs of St. John, US Virgin Islands&nbsp;from 1992-2017. Data were extracted from legacy photoquadrats that are part of an ongoing time series, and sponge abundances were measured on two scales (1) number per quadrat (“Abundance”), and (2) estimated volume as cm3/0.25 cm2. Data are summed across taxa, and support Figure 3 in the paper published in Marine Biology (Edumunds et al., 2020).&nbsp;<br /> <br /> Other datasets from Edmunds et al. (2020) are listed on the page&nbsp;https://www.bco-dmo.org/related-resource/819411.</p>