Changes in diversity. Mean (±SE) species richness and Shannon-Wiener index (H’) recorded in 2012 (a, b) and 2014 (c, d). Both measures of diversity were significantly affected by year (p<0.01) and a significant interaction between year and depth (p<0.01).

  Part of: Robinson TB, Havenga B, van der Merwe M, Jackson S (2017) Mind the gap – context dependency in invasive species impacts: a case study of the ascidian Ciona robusta. NeoBiota 32: 127-141.