Olivia Evans

Olivia Evans

Olivia Evans | Postgraduate Student

Sydney School of Veterinary Science
JL Shute Building
Camden NSW 2570
T +61 2 9351 1610


Bachelor Animal and Veterinary Bioscience (Honours 1)

Research Interests

Aquaculture Production, Aquatic Diseases

Research Project

Transmission factors of Ostreid Herpesvirus-1 in the Pacific Oyster (Crassostrea gigas)
Pacific oyster mortality syndrome (POMS) is a complex, multi-factorial disease arising from the interaction of oysters, pathogens and environmental parameters. POMS, as the name suggests, causes severe mortality in the Pacific oyster (Crassostrea gigas), affecting predominantly oyster spat and juveniles with mortalities of 100% and 40-100% respectively. Ostreid herpesvirus 1 (OsHV-1), the sole member of the family Malacoherpesviridae within the order Herpesvirales, has been identified in Australia and abroad as one of the key pathogens causing POMS. The disease, which first appeared in Australia in the Georges River in November 2010, has been documented and investigated in a range of countries worldwide including France, New Zealand, Spain, the United Kingdom and the Republic of Ireland. POMS poses a serious threat to the Australian C. gigas industry (2007-08: $53 million), with a potential to cause dramatic economic loss to producers nationwide. Within the current literature there exists a significant degree of research on crucial OsHV-1 diagnostic methodologies, however very little information exists surrounding the issue of OsHV-1 transmission factors. Little is understood about where this virus actually exists in the environment surrounding commercially produced C. gigas, how the virus infects a host and what environmental parameters trigger these outbreaks. Thorough investigation into where, when, and how this virus operates is crucial to understanding the disease cycle of POMS and vital to creating practical and economically viable recommendations for producers on how to deal with future POMS outbreaks, so as to limit the economic loss to industry associated with the disease.

Project Supervisor

Professor Richard Whittington

Associate Supervisors

Dr. Ika Paul-Pont
Dr. Paul Hick