Climate-related stressors and their effects on sablefish (Anoplopoma fimbria) cardiorespiratory physiology and immunology ...

• Main Author: Leeuwis, Robine Helena Jannigje
• Format: Text
• Language: English
• Published: Memorial University of Newfoundland 2023
• Subjects: Pacific; Atlantic salmon; Salmo salar
• Online Access: https://dx.doi.org/10.48336/vk25-vq47; https://research.library.mun.ca/15946/

Fish in aquatic environments worldwide are increasingly experiencing extreme abiotic conditions, including high temperatures and hypoxia, due to global warming and eutrophication related to anthropogenic activities. However, our understanding of how these climate-related stressors impact fish physiology is often limited, and many critical questions in this area of ecophysiology research remain unanswered. In this dissertation, I have addressed several knowledge gaps related to fish (teleost) cardiorespiratory physiology and immunology, using the sablefish (Anoplopoma fimbria) as a model species. The sablefish is an economically and ecologically important species in the North Pacific, and an emerging aquaculture species, and it has a unique life history as it encounters a wide range of temperatures and O₂ levels in the wild. My research shows that sablefish, as compared to Atlantic salmon (Salmo salar), are only slightly less tolerant of acute exposure to high temperatures (critical thermal maximum ~25°C), ...