September 26, 2022
Worms, nutrient cycling supports Coorong remediation

“We know healthy benthic faunal communities exert strong influence on nutrient cycling in coastal marine sediments but many benthic macroinvertebrates are highly susceptible to high salinity and low oxygen in water,” says lead author Dr. Orlando Lam-Gordillo, a research associate with the Coastal Ecosystem Ecology Lab research group in Flinders University’s College of Science and Engineering.

“We found that this macrobenthic organism relocation helped improve sediment conditions by increasing oxygenation and reducing salinity and sulfide and ammonium concentrations in these ‘hostile’ sediments.”

The project, part of the South Australian Department for Environment and Water’s broader “Healthy Coorong, Healthy Basin” program is being managed by the Goyder Institute for Water Research, involving expert collaborators from Flinders University, the University of Adelaide, UniSA, CSIRO and Griffith University.

Goyder Director Dr. Kane Aldridge says: “The Coorong is a wetland of huge local, national and international value which has seen a decline in environmental condition over a number of decades, particularly in the Coorong’s South Lagoon.

» continue to Phys.Org