DOI: 10.1007/s10695-019-00706-6
论文题名: Combined effects of temperature increase and immune challenge in two wild gudgeon populations
作者: Petitjean Q. ; Jean S. ; Côte J. ; Lamarins A. ; Lefranc M. ; Santos R. ; Perrault A. ; Laffaille P. ; Jacquin L.
刊名: Fish Physiology and Biochemistry
ISSN: 9201742
出版年: 2020
卷: 46, 期: 1 语种: 英语
英文关键词: Behaviour
; Climate change
; Inter-population variability
; Multiple stressors
; Pathogens
; Physiology
Scopus关键词: aquatic species
; article
; climate change
; foraging
; global change
; heat
; infectious agent
; nonhuman
; parasite
; temperature sensitivity
; wildlife
英文摘要: In the context of global changes, aquatic ecosystems are increasingly exposed to multiple stressors that can have unexpected interactive effects on aquatic organisms. Among these stressors, the occurrence of heat waves and pathogens is changing rapidly in freshwater rivers, but their combined effects on fish health are still understudied. In this study, we experimentally tested the crossed effects of increased temperature (mimicking a heat wave) and a standardized immune challenge (mimicking a parasite attack) on wild gudgeon (Gobio occitaniae) physiology and behaviour across biological levels from molecules to the whole individual. We also investigated the potential variation of sensitivity among populations by comparing two wild populations from contrasted thermal regimes. Combined stressors (i.e. temperature increase and immune challenge) had contrasted effects on fish physiology and behaviour compared to single stressors, but only at the individual level. In particular, the immune challenge inhibited the effect of the temperature on fish behaviour (activity, exploration and foraging) but amplified the negative effect of temperature on fish survival. No interactions were found at other biological levels. This study thus shows that it is essential to consider biotic stressors such as pathogens to better anticipate the effects of global changes on aquatic organisms. In addition, there was a high variability of response between the two gudgeon populations, suggesting that future studies should take into account population variability to better predict the responses of aquatic wildlife to current and future stressors. © 2019, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159448
Appears in Collections: 气候变化与战略
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作者单位: Laboratoire Ecologie Fonctionnelle et Environnement, UMR5245 Ecolab, Université de Toulouse, CNRS, INPT, UPS, 118 Route de Narbonne, Toulouse, 31062, France; Laboratoire Evolution et Diversité Biologique, UMR5174 EDB, Université de Toulouse, CNRS, IRD, UPS, 118 Route de Narbonne, Toulouse, 31062, France; HEPIA, Ecology and Engineering of Aquatic Systems Research Group, University of Applied Sciences Western Switzerland, 150 Route de Presinge, Jussy, 1254, Switzerland
Recommended Citation:
Petitjean Q.,Jean S.,Côte J.,et al. Combined effects of temperature increase and immune challenge in two wild gudgeon populations[J]. Fish Physiology and Biochemistry,2020-01-01,46(1)