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Inter-annual and intra-annual variability in blood variables and parasitic loads of wild Thunnus maccoyii


Kirchhoff, NT and Nelligan, J and Ellis, D and Cadoret, K and Leef, M and Nowak, B, Inter-annual and intra-annual variability in blood variables and parasitic loads of wild Thunnus maccoyii, Canadian Journal of Fisheries and Aquatic Sciences, 71, (10) pp. 1572-1578. ISSN 0706-652X (2014) [Refereed Article]

Copyright Statement

Copyright NRC Research Press 2014

DOI: doi:10.1139/cjfas-2013-0457


The health of southern bluefin tuna (SBT), Thunnus maccoyii, in the Great Australian Bight was assessed. Samples were obtained over 3 years (20102012) and over five individual schools in 2012. Several blood variables and parasite loads were measured and used as indicators of SBT health. The health of wild SBT varied among years and among schools sampled within the same month. Haemoglobin and the humoral immune parameters lysozyme and alternative complement activity explained the majority of the variation. Haemoglobin concentration, lysozyme activity, alternative complement activity, and lactate were lower in wild SBT sampled in 2010 than in 2011 and 2012. The extent to which the health differences in wild SBT may affect ranched SBT is currently unknown. Benchmark values were set for various blood parameters and parasite loads in wild SBT.

Item Details

Item Type:Refereed Article
Keywords:tuna, immune, parasite, haemoglobin, lactate
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Fish pests and diseases
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - wild caught
Objective Field:Wild caught tuna
UTAS Author:Kirchhoff, NT (Ms Nicole Kirchhoff)
UTAS Author:Cadoret, K (Ms Karine Cadoret)
UTAS Author:Leef, M (Dr Melanie Leef)
UTAS Author:Nowak, B (Professor Barbara Nowak)
ID Code:97599
Year Published:2014
Web of Science® Times Cited:2
Deposited By:NC Marine Conservation and Resource Sustainability
Deposited On:2014-12-30
Last Modified:2017-11-04

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