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Título: | Nitrate pollution, but not fin clipping, reduces ecto-symbiont abundance on three-spined sticklebacks |
Autor: | Maceda-Veiga, Alberto; Cable, J. | Fecha de publicación: | 2016 | Citación: | Bulletin of the European Association of Fish Pathologists 36(6): 256-262 (2016) | Resumen: | Fin clipping is unlikely to be a major health issue, but their effects on small fish under variable environmental conditions have not been fully tested. In this study, we explored how nitrate pol-lution and fin-clipping affect the natural ecto-symbiont community of three-spined sticklebacks Gasterosteus aculeatus. Our results showed that fin clipping has a neutral effect on the abundance of the ecto-commensal Trichodina spp. and the well-known pathogen Gyrodactylus gasterostei, and that such an effect is not influenced by a 4-week exposure to 50 mg N03> L>1. This nitrate level, however, markedly reduced the abundance of these two ecto-symbionts compared to controls at < 10 mg N03' L>1. In conclusion, this study suggests that fin-clipping is a valid non-destructive method for tissue sampling in fish, and that an ecologically relevant nitrate concentration can protect fish against some species of Trichodina and Gyrodactylus. | Versión del editor: | https://eafp.org/download/2016-volume36/issue_6/36-6-256-maceda-veiga.pdf | URI: | http://hdl.handle.net/10261/196055 | ISSN: | 0108-0288 |
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