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The distribution of the introduced tapeworm Bothriocephalus acheilognathi in Australian freshwater fishes

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Dove, A. D. M. and Fletcher, A.S. (2000) The distribution of the introduced tapeworm Bothriocephalus acheilognathi in Australian freshwater fishes. Journal of Helminthology, 74 (2). pp. 121-127. ISSN 1475-2697

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Article Link: https://doi.org/10.1017/S0022149X00000160


Native and exotic fishes were collected from 29 sites across coastal and inland New South Wales, Queensland and Victoria, using a range of techniques, to infer the distribution of Bothriocephalus acheilognathi (Cestoda: Pseudophyllidea) and the host species in which it occurs. The distribution of B. acheilognathi was determined by that of its principal host, carp, Cyprinuscarpio; it did not occur at sites where carp were not present. The parasite was recorded from all native fish species where the sample size exceeded 30 and which were collected sympatrically with carp: Hypseleotris klunzingeri, Hypseleotris sp. 4, Hypseleotris sp. 5, Phylipnodon grandiceps and Retropinna semoni. Bothriocephalus acheilognathi was also recorded from the exotic fishes Gambusia holbrooki and Carassiusauratus. Hypseleotris sp. 4, Hypseleotris sp. 5, P. grandiceps, R. semoni and C. auratus are new host records. The parasite was not recorded from any sites in coastal drainages. The only carp population examined from a coastal drainage (Albert River, south-east Queensland) was also free of infection; those fish had a parasite fauna distinct from that of carp in inland drainages and may represent a separate introduction event. Bothriocephalus acheilognathi has apparently spread along with its carp hosts and is so far restricted to the Murray-Darling Basin. The low host specificity of this parasite is cause for concern given the threatened or endangered nature of some Australian native freshwater fish species. A revised list of definitive hosts of B. acheilognathiis presented.

Item Type:Article
Subjects:Aquaculture and Fisheries > Aquaculture > Fish culture > Diseases and adverse factors
Live Archive:04 Jan 2024 03:07
Last Modified:04 Jan 2024 03:07

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