Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/9976
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: The effect of octopaminergic compounds on the behaviour and transmission of Gyrodactylus
Authors: Brooker, Adam
Grano-Maldonado, Mayra
Irving, Stephen
Bron, James
Longshaw, Matthew
Shinn, Andrew
Contact Email: aps1@stir.ac.uk
Keywords: Gyrodactylus
octopamine
behaviour
toxicology
Issue Date: Sep-2011
Publisher: BioMed Central Ltd
Citation: Brooker A, Grano-Maldonado M, Irving S, Bron J, Longshaw M & Shinn A (2011) The effect of octopaminergic compounds on the behaviour and transmission of Gyrodactylus, Parasites and Vectors, 4, p. 207.
Abstract: Background: The high transmission potential of species belonging to the monogenean parasite genus Gyrodactylus, coupled with their high fecundity, allows them to rapidly colonise new hosts and to increase in number. One gyrodactylid, Gyrodactylus salaris Malmberg, 1957, has been responsible for devastation of Altantic salmon (Salmo salar L.) populations in a number of Norwegian rivers. Current methods of eradicating G. salaris from river systems centre around the use of non-specific biocides, such as rotenone and aluminium sulphate. Although transmission routes in gyrodactylids have been studied extensively, the behaviour of individual parasites has received little attention. Specimens of Gyrodactylus gasterostei Gläser, 1974 and G. arcuatus Bychowsky, 1933, were collected from the skin of their host, the three-spined stickleback (Gasterosteus aculeatus L.), and permitted to attach to the substrate. The movements of individual parasites were recorded and analysed. Results: The behaviour patterns of the two species were similar and parasites were more active in red light and darkness than in white light. Four octopaminergic compounds were tested and all four inhibited the movements of parasites. Treatment ultimately led to death at low concentrations (0.2 μM), although prolonged exposure was necessary in some instances. Conclusions: Octopaminergic compounds may affect the parasite's ability to locate and remain on its host and these or related compounds might provide alternative or supplementary treatments for the control of G. salaris infections. With more research there is potential for use of octopaminergic compounds, which have minimal effects on the host or its environment, as parasite-specific treatments against G. salaris infections.
Type: Journal Article
URI: http://hdl.handle.net/1893/9976
DOI Link: http://dx.doi.org/10.1186/1756-3305-4-207
Rights: Publisher is open-access. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Affiliation: Aquaculture
University of Stirling
Centre for Environment, Fisheries and Aquaculture Science (CEFAS)
Aquaculture
Centre for Environment, Fisheries and Aquaculture Science (CEFAS)
Aquaculture

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