Organism Type: Algae

Kelp

Large brown algae that attach to cage nets and mooring lines. While less structurally damaging than hard-fouling organisms, dense kelp…

Filamentous Algae

Fine filamentous brown algae that rapidly colonise net surfaces. While easy to remove individually, their fast growth rate makes them…

Red Filamentous Alga

Fine branching red algae that form dense tufts on net panels and ropes. They trap sediment and provide a foothold…

Sea Lettuce

Bright green sheet-like algae that colonise nets and ropes near nutrient-enriched farm sites. Ulva blooms can completely block water flow…

Diatom Biofilm

Microscopic single-celled algae that form the initial slime layer on any submerged surface. Diatom biofilms are the precursor to all…