Total size and growth measurement methods for a Paramuricea biscaya colony. This colony was photographed at site MC294 at a depth of 1370 m. Total size was measured using the images from 2014, when the ball used as a size reference was placed next to the corals and photographed. In Method 1, growth was first measured between consecutive years (2013 images were not used due to insufficient image resolution). Once the images from 2012, 2014, 2015, 2016, and 2017 were digitized with the new growth over the previous time period, each increment of growth was digitized on the 2017 image. In Method 2, growth was measured directly by comparing the 2012 and 2017 images and digitized on the 2017 image. The 2017 digitized image was then compared to images from the previous years to identify when growth occurred. To allow for comparison of the methods and use of all data, growth measured between 2011 and 2012 was also added to the 2017 image in Method 2. DOI: https://doi.org/10.1525/elementa.349.f2