Erratum to: Simulated maternal stress reduces offspring aerobic swimming performance in Pacific salmon

Amanda I Banet; Stephen J Healy; Erika J Eliason; Edward A Roualdes; David A Patterson; Scott G Hinch

doi:10.1093/conphys/coaa004

Erratum to: Simulated maternal stress reduces offspring aerobic swimming performance in Pacific salmon

Conservation Physiology ◽

10.1093/conphys/coaa004 ◽

2020 ◽

Vol 8 (1) ◽

Author(s):

Amanda I Banet ◽

Stephen J Healy ◽

Erika J Eliason ◽

Edward A Roualdes ◽

David A Patterson ◽

...

Keyword(s):

Maternal Stress ◽

Pacific Salmon ◽

Swimming Performance

Download Full-text

Simulated maternal stress reduces offspring aerobic swimming performance in Pacific salmon

Conservation Physiology ◽

10.1093/conphys/coz095 ◽

2019 ◽

Vol 7 (1) ◽

Author(s):

Amanda I Banet ◽

Stephen J Healy ◽

Erika J Eliason ◽

Edward A Roualdes ◽

David A Patterson ◽

...

Keyword(s):

Oxygen Consumption ◽

Citrate Synthase ◽

Maternal Stress ◽

Pacific Salmon ◽

Swimming Performance ◽

Haemoglobin Concentration ◽

Aerobic Performance ◽

Aerobic Scope ◽

Lactate Dehydrogenase Activity ◽

Treatment Groups

Abstract Pacific salmon routinely encounter stressors during their upriver spawning migration, which have the potential to influence offspring through hormonally-mediated maternal effects. To disentangle genetic vs. hormonal effects on offspring swimming performance, we collected gametes from three species of Pacific salmon (Chinook, pink and sockeye) at the end of migration and exposed a subset of eggs from each female to cortisol baths to simulate high levels of maternal stress. Fertilised eggs were reared to fry and put through a series of aerobic swim trials. Results show that exposure to cortisol early in development reduces maximum oxygen consumption while swimming, and decreases aerobic scope in all three species. Resting oxygen consumption did not differ between cortisol and control treatment groups. We also examined several metrics that could influence aerobic performance, and found no differences between treatment groups in haematocrit%, haemoglobin concentration, heart mass, citrate synthase activity or lactate dehydrogenase activity. Though it was not the focus of this study, an interesting discovery was that pink salmon had a higher MO2max and aerobic scope relative to the other species, which was supported by a greater haematocrit, haemoglobin, a larger heart and higher CS activity. Some management and conservation practices for Pacific salmon focus efforts primarily on facilitating adult spawning. However, if deleterious effects of maternal stress acquired prior to spawning persist into the next generation, consideration will need to be given to sub-lethal effects that could be imparted onto offspring from maternal stress.

Download Full-text

Field-based measurements of oxygen uptake and swimming performance with adult Pacific salmon using a mobile respirometer swim tunnel

Journal of Fish Biology ◽

10.1046/j.1095-8649.2003.00010.x ◽

2003 ◽

Vol 62 (1) ◽

pp. 64-84 ◽

Cited By ~ 65

Author(s):

A. P. Farrell ◽

C. G. Lee ◽

K. Tierney ◽

A. Hodaly ◽

S. Clutterham ◽

...

Keyword(s):

Oxygen Uptake ◽

Pacific Salmon ◽

Swimming Performance

Download Full-text

Sex-specific differences in swimming, aerobic metabolism and recovery from exercise in adult coho salmon (Oncorhynchus kisutch) across ecologically relevant temperatures

Conservation Physiology ◽

10.1093/conphys/coab016 ◽

2020 ◽

Vol 9 (1) ◽

Author(s):

K Kraskura ◽

E A Hardison ◽

A G Little ◽

T Dressler ◽

T S Prystay ◽

...

Keyword(s):

Adult Female ◽

Coho Salmon ◽

Pacific Salmon ◽

Swimming Performance ◽

Oncorhynchus Kisutch ◽

Mortality Rates ◽

Aerobic Metabolism ◽

Exhaustive Exercise ◽

Aerobic Scope ◽

Cost Of Transport

Abstract Adult female Pacific salmon can have higher migration mortality rates than males, particularly at warm temperatures. However, the mechanisms underlying this phenomenon remain a mystery. Given the importance of swimming energetics on fitness, we measured critical swim speed, swimming metabolism, cost of transport, aerobic scope (absolute and factorial) and exercise recovery in adult female and male coho salmon (Oncorhynchus kisutch) held for 2 days at 3 environmentally relevant temperatures (9°C, 14°C, 18°C) in fresh water. Critical swimming performance (Ucrit) was equivalent between sexes and maximal at 14°C. Absolute aerobic scope was sex- and temperature-independent, whereas factorial aerobic scope decreased with increasing temperature in both sexes. The full cost of recovery from exhaustive exercise (excess post-exercise oxygen consumption) was higher in males compared to females. Immediately following exhaustive exercise (i.e. 1 h), recovery was impaired at 18°C for both sexes. At an intermediate time scale (i.e. 5 h), recovery in males was compromised at 14°C and 18°C compared to females. Overall, swimming, aerobic metabolism, and recovery energetics do not appear to explain the phenomenon of increased mortality rates in female coho salmon. However, our results suggest that warming temperatures compromise recovery following exhaustive exercise in both male and female salmon, which may delay migration progression and could contribute to en route mortality.

Download Full-text