The effects of oxygen variability during early development on the physiology of Atlantic salmon (Salmo salar) ...

• Main Author: Wood, AT
• Format: Thesis
• Language: unknown
• Published: University Of Tasmania 2023
• Subjects: Atlantic salmon; Salmo salar
• Online Access: https://dx.doi.org/10.25959/23238614; https://figshare.utas.edu.au/articles/thesis/The_effects_of_oxygen_variability_during_early_development_on_the_physiology_of_Atlantic_salmon_Salmo_salar_/23238614

Variable oxygen availability can challenge the performance and survival of anadromous salmon species from early development in freshwater redds to adult life in the open ocean. Salmon are also a highly valued aquaculture species, and may face similar hypoxic or hyperoxic challenges in hatcheries and sea cage rearing. This thesis investigates the physiological responses of Atlantic salmon (Salmo salar) early life stages to oxygen variability (hypoxia and hyperoxia) that is typically experienced in natural and aquaculture systems. In particular, the thesis focuses on how oxygen variability during incubation affects developmental trajectories that may cause long-term impacts. Salmon incubating in natural under-gravel redds and aquaculture incubation systems can experience oxygen levels from < 20% to 180% dissolved oxygen (DO; % air saturation). While hypoxia is known to compromise the growth and development of salmon and stimulate physiological processes to improve oxygen uptake rate (¬¿œÄvÑO\\(_2\\)) or ...