Consequences of eye fluke infection on anti-predator behaviours in invasive round gobies in Kalmar Sound
| Autor: | Jane Behrens, P. Andreas Svensson, Henrik Flink |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Neogobius Eye Diseases genetic structures Oceans and Seas media_common.quotation_subject Snails Parasitism Introduced species Trematode Infections 010603 evolutionary biology 01 natural sciences Predation Fish Diseases 03 medical and health sciences parasitic diseases Animals Parasites Anti-predator behaviour Predator media_common Original Paper General Veterinary biology Boldness Ecology Host (biology) Fishes General Medicine biology.organism_classification 030104 developmental biology Infectious Diseases Predatory Behavior PITT Insect Science Parasitology Trematoda Introduced Species Biological invasion |
| Zdroj: | Flink, H, Behrens, J W & Svensson, P A 2017, ' Consequences of eye fluke infection on anti-predator behaviours in invasive round gobies in Kalmar Sound ', Parasitology Research, vol. 116, no. 6, pp. 1653-1663 . https://doi.org/10.1007/s00436-017-5439-5 Parasitology Research |
| ISSN: | 1432-1955 0932-0113 |
| DOI: | 10.1007/s00436-017-5439-5 |
| Popis: | Larvae of the eye fluke, Diplostomum, emerge from snails and infect fish by penetrating skin or gills, then move to the lens where they may impair the vision of the fish. For the fluke to reproduce, a bird must eat the infected fish, and it has been suggested that they therefore actively manipulate the fish’s behaviour to increase the risk of predation. We found that round gobies Neogobius melanostomus, a species that was recently introduced to the Kalmar Sound of the Baltic Sea, had an eye fluke prevalence of 90–100%. We investigated how the infection related to behavioural variation in round gobies. Our results showed that the more intense the parasite-induced cataract, the weaker the host’s response was to simulated avian attack. The eye flukes did not impair other potentially important anti-predator behaviours, such as shelter use, boldness and the preference for shade. Our results are in accordance with the suggestion that parasites induce changes in host behaviour that will facilitate transfer to their final host. |
| Databáze: | OpenAIRE |
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