Líffræðifélag Íslands - biologia.is
Líffræðiráðstefnan 2025
Erindi/veggspjald / Talk/poster E71
Höfundar / Authors: Alex Zinck (1), Sabine Lobligeois (1,2), Evan Condette (3), Sofia Yordanova (4), Joran Kerjose (4), David Benhaim (1)
Starfsvettvangur / Affiliations: 1. Hólar University, 2. University of Iceland, 3. Institut National des Sciences et Techniques de la Mer , 4. Université de Caen-Normandie
Kynnir / Presenter: Alex Zinck
Arctic charr (Salvelinus alpinus) is a valuable aquaculture species, and detailed knowledge of its biology is critical for breeding programs aimed at improving welfare of livestock while addressing the demands of the aquaculture industry. One of the current goals of our laboratory is to broaden the scope of available knowledge on the developmental biology of aquaculture-strain Arctic charr. To this end, we are conducting an interdisciplinary project that combines multiple experiments to investigate connections between behavioral traits, growth rate, and metabolism in juvenile Arctic charr. While the metabolic rate of juvenile Arctic charr has been measured in previous studies, methods have not yet been refined to account for the species’ biology and its juvenile developmental stage in line with current best practices for SMR measurement. In the experiment presented here, juvenile Arctic charr underwent a 36-hour metabolic rate measurement period with a 12-hour photoperiod to evaluate the optimal duration and light conditions for SMR assessment. Our results indicate that an overnight measurement period in dark conditions is sufficient to obtain stable oxygen consumption rates from which SMR can be reliably extracted.