Oxygen dissociation and content of blood from Alaskan burbot (Lota lota), pike (Esox lucius) and grayling (Thymallus arcticus)

Comparative study of the erythrocytes and haemoglobins in nototheniid fishes from Antarctica

“…In the Scandinavian study, it was possible to correlate haematocrit with activity levels; Lophius is a sedentary benthic species, while Scomber is a fast swimming pelagic fish. Another cold water benthic species, the Alaskan burbot Lota lota, has a low haematocrit of 0.194 (Cameron, 1973). Similar interspecific variations have been noted in contrasting latitudes by Putnam & Freel (1978) who recorded haematocrits from a range of Mexican fishes.…”

Comparative study of the erythrocytes and haemoglobins in nototheniid fishes from Antarctica

“…In the Scandinavian study, it was possible to correlate haematocrit with activity levels; Lophius is a sedentary benthic species, while Scomber is a fast swimming pelagic fish. Another cold water benthic species, the Alaskan burbot Lota lota, has a low haematocrit of 0.194 (Cameron, 1973). Similar interspecific variations have been noted in contrasting latitudes by Putnam & Freel (1978) who recorded haematocrits from a range of Mexican fishes.…”

Genomic analysis of hypoxia inducible factor alpha in ray-finned fishes reveals missing Ohnologs and evidence of widespread positive selection

“…But, because salmonids generally occur in well-oxygenated habitats and have poor hypoxia tolerance, there does not appear to be a link between HIFA duplication and hypoxia tolerance in this group. This suggestion is supported by the observation that Northern pike, from the sister group to Salmoniformes that diverged prior to the SGD, lacks the salmonid-specific duplicate but are more hypoxia tolerant than salmonids 71 . It is possible that these duplicates may play other roles in salmonid physiology or life-history, and future research is needed to evaluate whether subfunctionalization or neofunctionalization are playing a role in maintaining these salmonid-specific duplicates.…”

“…But, because salmonids generally occur in well-oxygenated habitats and have poor hypoxia tolerance, there does not appear to be a link between HIFA duplication and hypoxia tolerance in this group. This suggestion is supported by the observation that Northern pike, from the sister group to Salmoniformes that diverged prior to the SGD, lacks the salmonid-specific duplicate but are more hypoxia tolerant than salmonids 71 www.nature.com/scientificreports/ are playing a role in maintaining these salmonid-specific duplicates. Alternatively, they may be destined for nonfunctionalization, a process that is likely still underway in this lineage given the recency of the SGD 33 .…”

Comparative study of the erythrocytes and haemoglobins in nototheniid fishes from Antarctica

“…In the Scandinavian study, it was possible to correlate haematocrit with activity levels; Lophius is a sedentary benthic species, while Scomber is a fast swimming pelagic fish. Another cold water benthic species, the Alaskan burbot Lota lota, has a low haematocrit of 0.194 (Cameron, 1973). Similar interspecific variations have been noted in contrasting latitudes by Putnam & Freel (1978) who recorded haematocrits from a range of Mexican fishes.…”

Genomic analysis of hypoxia inducible factor alpha in ray-finned fishes reveals missing Ohnologs and evidence of widespread positive selection

“…But, because salmonids generally occur in well-oxygenated habitats and have poor hypoxia tolerance, there does not appear to be a link between HIFA duplication and hypoxia tolerance in this group. This suggestion is supported by the observation that Northern pike, from the sister group to Salmoniformes that diverged prior to the SGD, lacks the salmonid-specific duplicate but are more hypoxia tolerant than salmonids 71 . It is possible that these duplicates may play other roles in salmonid physiology or life-history, and future research is needed to evaluate whether subfunctionalization or neofunctionalization are playing a role in maintaining these salmonid-specific duplicates.…”

“…But, because salmonids generally occur in well-oxygenated habitats and have poor hypoxia tolerance, there does not appear to be a link between HIFA duplication and hypoxia tolerance in this group. This suggestion is supported by the observation that Northern pike, from the sister group to Salmoniformes that diverged prior to the SGD, lacks the salmonid-specific duplicate but are more hypoxia tolerant than salmonids 71 www.nature.com/scientificreports/ are playing a role in maintaining these salmonid-specific duplicates. Alternatively, they may be destined for nonfunctionalization, a process that is likely still underway in this lineage given the recency of the SGD 33 .…”

Comparative study of the erythrocytes and haemoglobins in nototheniid fishes from Antarctica

“…In the Scandinavian study, it was possible to correlate haematocrit with activity levels; Lophius is a sedentary benthic species, while Scomber is a fast swimming pelagic fish. Another cold water benthic species, the Alaskan burbot Lota lota, has a low haematocrit of 0.194 (Cameron, 1973). Similar interspecific variations have been noted in contrasting latitudes by Putnam & Freel (1978) who recorded haematocrits from a range of Mexican fishes.…”

Genomic analysis of hypoxia inducible factor alpha in ray-finned fishes reveals missing Ohnologs and evidence of widespread positive selection

“…But, because salmonids generally occur in well-oxygenated habitats and have poor hypoxia tolerance, there does not appear to be a link between HIFA duplication and hypoxia tolerance in this group. This suggestion is supported by the observation that Northern pike, from the sister group to Salmoniformes that diverged prior to the SGD, lacks the salmonid-specific duplicate but are more hypoxia tolerant than salmonids 71 . It is possible that these duplicates may play other roles in salmonid physiology or life-history, and future research is needed to evaluate whether subfunctionalization or neofunctionalization are playing a role in maintaining these salmonid-specific duplicates.…”

“…But, because salmonids generally occur in well-oxygenated habitats and have poor hypoxia tolerance, there does not appear to be a link between HIFA duplication and hypoxia tolerance in this group. This suggestion is supported by the observation that Northern pike, from the sister group to Salmoniformes that diverged prior to the SGD, lacks the salmonid-specific duplicate but are more hypoxia tolerant than salmonids 71 www.nature.com/scientificreports/ are playing a role in maintaining these salmonid-specific duplicates. Alternatively, they may be destined for nonfunctionalization, a process that is likely still underway in this lineage given the recency of the SGD 33 .…”