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Mateo, Maria; Lambert, Patrick; Tetard, Stephane; Castonguay, Martin; Ernande, Bruno; Drouineau, Hilaire. |
The European eel (Anguilla anguilla), and generally, temperate eels, are relevant species for studying adaptive mechanisms to environmental variability because of their large distribution areas and their limited capacity of local adaptation. In this context, GenEveel, an individual-based optimization model, was developed to explore the role of adaptive phenotypic plasticity and genetic-dependent habitat selection, in the emergence of observed spatial life-history traits patterns for eels. Results suggest that an interaction of genetically and environmentally controlled growth may be the basis for genotype-dependent habitat selection, whereas plasticity plays a role in changes in life-history traits and demographic attributes. Therefore, this suggests that... |
Tipo: Text |
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Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00360/47095/47018.pdf |
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Tetard, Stephane; Feunteun, Eric; Bultel, Elise; Gadais, Romain; Begout, Marie-laure; Trancart, Thomas; Lasne, Emilien. |
Connectivity in aquatic systems is often related to abundance and permeability of physical barriers, such as dams, which delay or impede movements of biota with important consequences for aquatic biodiversity. Water quality may, however, also control connectivity between essential habitats. In macrotidal estuaries, Estuarine Turbidity Maxima (ETM) have a strong impact on water quality because of the low oxygen concentration occurring as a response to the related high bacterial and low photosynthetic activities. In this study, we assess Allis shad estuarine spawning migration in 2011 and 2012 in the Loire River (France) where the ETM occurs at spring and summer. Using an acoustic telemetry array, we show that trans-estuarine migration is inhibited during... |
Tipo: Text |
Palavras-chave: Connectivity; Hypoxic conditions; Acoustic telemetry; Estuarine migration; Allis shad. |
Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00301/41212/40365.pdf |
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