WAMSI Node 1.2.1 - Abundance, Size and Biomass of Benthic Organisms (Sponges and Corals)

Between Dec 06 and Feb 07 the number and size (estimated maximum diametre cm) of sessile invertebrates (sponges, corals) were recorded across 14 different habitat types within Marmion lagoon. 16 sites within 4 locations (inshore, inner-mid, outer-mid, offshore)were surveyed using 1 x 25m UVC belt transects. Survey data has been used to investigate the abundances of potentially important fauna across differeing habitat types and have confirmed that patch structure is an important and ubiquitous characteristic of Marmion Lagoon benthic communities, with strong implications for biodiversity and productivity.