Consulta: creatorFacets:"Ollivier, Helene"
Registros recuperados: 2
Data/hora: 11/06/2024 10:56:49

Intraspecific individual variation of temperature tolerance associated with oxygen demand in the European sea bass (Dicentrarchus labrax)
Provedor de dados: 5
Autores: Ozolina, Karlina; Shiels, Holly A.; Ollivier, Helene; Claireaux, Guy.
The European sea bass (Dicentrarchus labrax) is an economically important fish native to the Mediterranean and Northern Atlantic. Its complex life cycle involves many migrations through temperature gradients that affect the energetic demands of swimming. Previous studies have shown large intraspecific variation in swimming performance and temperature tolerance, which could include deleterious and advantageous traits under the evolutionary pressure of climate change. However, little is known of the underlying determinants of this individual variation. We investigated individual variation in temperature tolerance in 30 sea bass by exposing them to a warm temperature challenge test. The eight most temperature-tolerant and eight most temperature-sensitive fish...
Tipo: Text
Palavras-chave: Aerobic scope; Climate change; Fish; Heart; Individual variability; Swimming.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00337/44827/44369.pdf

Calcium response of KCl-excited populations of ventricular myocytes from the European sea bass (Dicentrarchus labrax): a promising approach to integrate cell-to-cell heterogeneity in studying the cellular basis of fish cardiac performance
Provedor de dados: 5
Autores: Ollivier, Helene; Marchant, James; Le Bayon, Nicolas; Servili, Arianna; Claireaux, Guy.
Climate change challenges the capacity of fishes to thrive in their habitat. However, through phenotypic diversity, they demonstrate remarkable resilience to deteriorating conditions. In fish populations, inter-individual variation in a number of fitness-determining physiological traits, including cardiac performance, is classically observed. Information about the cellular bases of inter-individual variability in cardiac performance is scarce including the possible contribution of excitation-contraction (EC) coupling. This study aimed at providing insight into EC coupling-related Ca2+ response and thermal plasticity in the European sea bass (Dicentrarchus labrax). A cell population approach was used to lay the methodological basis for identifying the...
Tipo: Text
Palavras-chave: Sea bass; Myocyte populations; Calcium signaling; Cardiac plasticity; Inter-individual variability.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00283/39412/37904.pdf