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Seasonal and diurnal variability in carbon respiration, calcification and excretion rates of the abalone Haliotis tuberculata L. ArchiMer
Chapperon, Coraline; Clavier, Jacques; Dugué, Clément; Amice, Erwan; Le Goff, Marion; Roussel, Sabine.
Abalone (Haliotis spp.) are commercially important marine shellfish species worldwide. Knowledge about the physiology of abalone that impacts life-history traits is important for a better understanding of the biology of the species and the impact of stressful husbandry procedures at different seasons. The present study quantified the seasonal and diurnal variations in four physiological parameters of the European species Haliotis tuberculata, i.e. carbon aerial and aquatic respiration, calcification and excretion rates, and the effect of prolonged aerial exposure upon abalone aerial respiration. We also investigated the effect of individual size upon these physiological parameters. Aquatic respiration and calcification rates showed an allometric...
Tipo: Text Palavras-chave: Ormer; Metabolism; Carbon fluxes; Physiology.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00431/54243/55886.pdf
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Exposure to solar radiation drives organismal vulnerability to climate: evidence from an intertidal limpet ArchiMer
Chapperon, Coraline; Volkenborn, Nils; Clavier, Jacques; Seite, Sarah; Seabra, Rui; Lima, Fernando P..
Understanding the physiological abilities of organisms to cope with heat stress is critical for predictions of species’ distributions in response to climate change. We investigated physiological responses (respiration and heart beat rate) of the ectotherm limpet Patella vulgata to heat stress events during emersion and the role of seasonal and microclimatic acclimatization for individual thermal tolerance limits. Individuals were collected from 5 microhabitats characterized by different exposure to solar radiation in the high intertidal zone of a semi-exposed rocky shore in winter and summer of 2014. Upper thermal tolerance limits (heat coma temperatures - HCTs, and heart rate Arrhenius break temperatures - ABTs) were determined for individuals from each...
Tipo: Text Palavras-chave: Patella vulgata; Heat stress; Acclimatization; Thermal tolerance; Microhabitat; Intertidal.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00318/42939/42447.pdf
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