Tolerance of young allis shad Alosa alosa (Clupeidae) to oxy‐thermic stress
| Autor: | Romaric Le Barh, Marie-Laure Acolas, Fabien Polese, Maud Pierre, Loic Baumann, Agnès Bardonnet, Fabrice Vétillard, Joris Philip, Philippe Jatteau, Joanna Vega |
|---|---|
| Přispěvatelé: | Ecosystèmes aquatiques et changements globaux (UR EABX), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP), Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Adour Garonne Water Agency, INRAE, Shad'Eau project |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
food.ingredient behavioural observation [SDE.MCG]Environmental Sciences/Global Changes Population Dynamics Population Aquatic Science 010603 evolutionary biology 01 natural sciences survival analysis Animal science food Stress Physiological Animals Juvenile Allis shad 14. Life underwater education Ecology Evolution Behavior and Systematics [SDV.EE]Life Sciences [q-bio]/Ecology environment Alosa education.field_of_study biology hypoxia 010604 marine biology & hydrobiology Fishes temperature Hypoxia (environmental) Exploratory analysis biology.organism_classification 6. Clean water High stress Oxygen climate change juvenile Clupeidae 13. Climate action France [SDE.BE]Environmental Sciences/Biodiversity and Ecology Estuaries |
| Zdroj: | Journal of Fish Biology Journal of Fish Biology, Wiley, 2021, 98 (1), pp.112-131. ⟨10.1111/jfb.14562⟩ |
| ISSN: | 1095-8649 0022-1112 |
| Popis: | International audience; The ecology of the young stages of allis shad Alosa alosa is poorly documented, although they can be exposed to many pressures during their freshwater phase and their downstream migration. When passing through systems such as the Gironde-Garonne-Dordogne watershed (GGD, SW France), they can be subjected to high temperatures and low levels of oxygen (hypoxia). The aim of this work is to assess the tolerance of young Alosa alosa at four ages (c. 10, 30, 60 and 85 days old) by challenging them to different temperatures (18, 22, 26 and 28C) together with decreasing oxygen saturation levels (from 100% to 30%). Survival of the 10-day-old individuals was not influenced by oxy-thermic conditions, but high stress levels were detected and perhaps this age class was too fragile regarding the constraint of the experimental design. Survival at 30 and at 60 days old was negatively influenced by the highest temperatures tested alone (from 26C and from 28C, respectively) but no effect was detected at 85 days old up to 28C. A combined effect of temperature and oxygen level was highlighted, with heat accelerating survival decrease when associated with oxygen level depletion: essentially, survival was critical ( |
| Databáze: | OpenAIRE |
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