Haematozoa of wild catfishes in northern Australia

Kelly, Erin, Barbosa, Amanda D., Gibson-Kueh, Susan, and Lymbery, Alan J. (2018) Haematozoa of wild catfishes in northern Australia. International Journal for Parasitology: Parasites and Wildlife, 7 (1). pp. 12-17.

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Abstract

Very little is known about the diversity, prevalence, or pathogenicity of haematozoa in Australian freshwater fishes. Blood smears from 189 native catfishes, of six different species, from northern Australia were examined for haematozoa. Haematozoan infections were observed only in fishes from Queensland, at an overall prevalence of 0.191 (95% CI = 0.134–0.265). Intraerythrocytic haemogregarines were present in Neoarius graeffei from the Brisbane River at a prevalence of 0.35 (0.181–0.567). Trypanosomes were present in Tandanus species from four rivers, at prevalences ranging from 0.111 (0.020–0.330) to 1 (0.635–1), and in N. graeffei from one river in Queensland, at a prevalence of 0.063 (0.003–0.305). The haematozoans observed appeared to have little impact on their hosts. Tandanus spp. were significantly more likely to be infected with trypanosomes, suggesting a high parasite-host specificity. This is the first widespread survey of wild Australian freshwater catfishes for haematozoa, resulting in the first report of haemogregarines from Australian freshwater fish, and the first report of trypanosomes from Neoarius graeffei and Tandanus tropicanus.

Item ID: 59113
Item Type: Article (Research - C1)
ISSN: 2213-2244
Keywords: Blood smear, Haemogregarine, Teleost, Trypanosome
Copyright Information: © 2017 The Authors. Published by Elsevier Ltd on behalf of Australian Society for Parasitology. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/BY-NC-ND/4.0/)
Funders: Fisheries Research and Development Corporation, Australian Government Research Training Program Scholarship
Date Deposited: 13 Aug 2019 22:00
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0707 Veterinary Sciences > 070708 Veterinary Parasitology @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970107 Expanding Knowledge in the Agricultural and Veterinary Sciences @ 50%
97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 50%
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