<i>Posidonia australis</i> Bed (IMAGE) Virginia Institute of Marine Science Caption VIMS professor Robert JJ Orth examines a bed of Posidonia australis seagrass within Cockburn Sound, Western Australia. This species has suffered substantial losses here and elsewhere due to nutrient pollution and industrial development of the coast. Credit © S. Manley/VIMS. Usage Restrictions One-time use only. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.