Craig Hayward
Research Scientist–Aquatic Animal Health and Welfare
Areas of expertise:
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Parasites of economic significance in aquaculture and fisheries (particularly gill flukes, skin flukes and sea lice of teleosts; and protistan parasites of molluscs): identification, epidemiology, life cycles, transmission, natural distribution and invasion biology.
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Impacts of parasite epizootics on the health of aquatic animals.
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Minimisation of disease in aquaculture by improving management strategies and developing novel approaches.
Countries of work experience:
Australia, Japan, Korea, Thailand, Malaysia, USA, Mexico
Experience and qualifications:
Having studied a range of aquatic host–parasite systems, both in aquaculture and wild fisheries, Craig has broad experience in the field of aquatic animal health and parasitology. One of his main current interests is studying the links between different farming practices and the health of fishes and molluscs farmed in South Australia (including southern bluefin tuna, yellowtail kingfish, mulloway and abalone), with an emphasis on parasite burdens. Another of Craig’s research interests is exploring the link between changing environmental conditions and outbreaks of disease in wild aquatic animals, especially abalone.
Craig received his PhD degree in 1997, after completing research in which he documented the distribution and abundance of external parasites on Indo–Pacific whitings (Sillaginidae) within the Indo–West Pacific region. This research included the description of 12 new species of parasitic flatworms and copepods, out of the 63 species of parasites he collected and identified in total. Since then, Craig's postdoctoral research has included projects on the identification of flatworms infecting wild Spanish mackerels (Scomberomorinae) and farmed and wild freshwater eels (Anguillidae) around the world; the identification of parasites pests of fishes farmed in Korea (and those imported to Korea for the aquarium trade), the epidemiology of a protist (Perkinsus olseni) in wild abalone in South Australia and in the laboratory; and the identification and epidemiology of parasites of southern bluefin tuna farmed in South Australia. Craig has also undertaken additional collaboration on smaller projects with colleagues both nationally and internationally (including Japan, US and Greece).
Craig has published, or has in press, 5 book chapters, 36 journal articles, and 3 final reports for FRDC. He has also presented this research at workshops and at national and international conferences. Craig has supervised 2 Honours students at the University of Queensland, and is currently co–supervising one PhD student enrolled at the University of Tasmania. Craig has also undertaken a number of consultancies on fish health.
Professional appointments:
2007–present: Research Scientist in Aquatic Animal Health and Welfare, SARDI Aquatic Sciences.
2004-2007: Research Fellow, University of Tasmania (off campus in Port Lincoln, SA).
2002–2003: Postdoctoral Fellow, University of Queensland, Qld.
2000–2001: Postdoctoral Fellow, Chungbuk National University, Korea.
1998–2000: Postdoctoral Fellow, University of Tokyo, Japan.
1997–1998: Junior Research Fellow, University of New England, NSW.
Selected recent publications:
Hayward CJ, Bott, N, Nowak, BF. In press. Seasonal epizootics of sea lice (Caligus spp.) on Southern Bluefin Tuna (Thunnus maccoyii) in a long-term farming trial. Journal of Fish Diseases.
Aiken H, Hayward C, Crosby P, Watts M, Nowak B. 2008. Serological evidence of an immune response in farmed southern bluefin tuna against blood fluke infection: Development of an indirect enzyme-linked immunosorbent assay. Fish and Shellfish Immunology 25: 66-75.
Hayward CJ, Aiken H, Nowak, BF. 2008. Epizootics of metazoan gill parasites did not threaten Southern Bluefin Tuna (Thunnus maccoyii) in an extended farming trial over summer months. Veterinary Parasitology 154:122-128.
Hayward CJ, Aiken H, Nowak, BF. 2008. An epizootic of Caligus chiastos (Copepoda, Caligidae) on Southern Bluefin Tuna (Thunnus maccoyii) farmed in Australia. Diseases of Aquatic Organisms 79: 57–63.
Hayward CJ, Aiken H, Nowak, BF. 2007. Metazoan parasites on the gills of southern bluefin tuna (Thunnus maccoyii) do not proliferate rapidly after transfer to culture cages. Aquaculture 262: 10–16.
Hayward CJ, Bott NJ, Itoh N, Iwashita M, Okihiro M, Nowak BF. 2007. Three species of parasites emerging on the gills of mulloway, Argyrosomus japonicus (Temminck & Schlegel, 1843), cultured in Australia. Aquaculture 265: 27–40.
Aiken H, Bott NJ, Mladineo I, Montero FE, Nowak BF, Hayward CJ. 2007. Molecular evidence for cosmopolitan distribution of platyhelminth parasites of tunas (Thunnus spp.) Fish and Fisheries 8: 167–180.
Lester RJG, Hayward CJ. 2006. 14. Phylum Arthropoda. Pp. 463–562 In: Woo PTK (ed.) Fish Diseases and Disorders, Volume 1: Protozoan and Metazoan Infections (2nd ed). CABI Publishing, Oxon, UK.
Hayward CJ. 2005. Monogenea Polyopisthocotylea (Ectoparasitic Flukes). Pp. 55–63 In: Rohde K (ed.) Marine Parasitology. CSIRO Publishing, Canberra.
Research Projects:
New project (March 2008): "Addressing key aquatic animal health issues limiting production of Australian yellowtail kingfish (Seriola lalandi) and hatchery–reared southern bluefin tuna (Thunnus maccoyii) industries", funded by Australian Seafood CRC and FRDC.
Contact:
Dr Craig Hayward
SARDI Aquatic Sciences
Tel: 08 8683–2529
Fax: 08 8683–2525
E–mail: hayward.craig@saugov.sa.gov.au