Suspected viral erythrocytic necrosis (VEN) in a juvenile blackbar triggerfish, Rhinecanthus aculeatus, from Lizard Island, Great Barrier Reef, Australia

Davies, Angela J., Curtis, Lynda, Grutter, Alexandra S. and Smit, Nico J. (2009) Suspected viral erythrocytic necrosis (VEN) in a juvenile blackbar triggerfish, Rhinecanthus aculeatus, from Lizard Island, Great Barrier Reef, Australia. Marine Biodiversity Records, 2 e149.1-e149.4. doi:10.1017/S1755267209990674


Author Davies, Angela J.
Curtis, Lynda
Grutter, Alexandra S.
Smit, Nico J.
Title Suspected viral erythrocytic necrosis (VEN) in a juvenile blackbar triggerfish, Rhinecanthus aculeatus, from Lizard Island, Great Barrier Reef, Australia
Formatted title
Suspected viral erythrocytic necrosis (VEN) in a juvenile blackbar triggerfish, Rhinecanthus aculeatus, from Lizard Island, Great Barrier Reef, Australia
Journal name Marine Biodiversity Records   Check publisher's open access policy
ISSN 1755-2672
Publication date 2009-12
Year available 2009
Sub-type Article (original research)
DOI 10.1017/S1755267209990674
Open Access Status DOI
Volume 2
Start page e149.1
End page e149.4
Total pages 4
Place of publication United Kingdom
Publisher Cambridge University Press
Collection year 2010
Subject 960506 Ecosystem Assessment and Management of Fresh, Ground and Surface Water Environments
070404 Fish Pests and Diseases
C1
Formatted abstract
Suspected viral erythrocytic necrosis (VEN) was detected in blood films from an immature blackbar triggerfish, Rhinecanthus aculeatus, captured on a patch reef at Lizard Island, Great Barrier Reef in November 2005, probably the first record of such an infection from Australia. The fish was kept in captivity and sampled intermittently until December 2007. Giemsa-stained blood films showed initially ~18% of mature erythrocytes affected by the VEN-like condition, but accompanying erythroblasts appeared free from infection. Erythrocytes with VEN-like bodies were smooth or crenated in outline, while the inclusion bodies were intracytoplasmic, single or paired, round in outline, stained deep magenta and were between 0.5–1.7 μm across. Bodies associated with clouds of granular material, fine eosinophilic haloes, and distinct pink-stained comet-tails, were also observed. The DNA content of the VEN-like bodies was confirmed by their green fluorescence following acridine orange staining. Infection levels in this fish fell to 0.4% of mature erythrocytes by May 2006 and persisted at this level until December 2007, when the fish died after just over two years in captivity. Squashes of haematophagous, juvenile gnathiid isopods taken from this fish on initial capture, also contained eosinophilic VEN-like bodies within digesting erythrocytes, suggesting that these crustaceans may be vectors of the condition observed.
Keyword suspected viral erythrocytic necrosis (VEN)
blackbar triggerfish
Rhinecanthus aculeatus
Great Barrier Reef
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Biological Sciences Publications
Ecology Centre Publications
 
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Created: Mon, 15 Feb 2010, 14:21:45 EST by Hayley Ware on behalf of School of Biological Sciences