10.25349/D9390K
Kraskura, Krista
0000-0001-9225-3037
University of California, Santa Barbara
Hardison, Emily
University of California, Santa Barbara
Eliason, Erika
University of California, Santa Barbara
Data for: Sex-specific differences in swimming, aerobic metabolism, and
recovery from exercise in adult coho salmon (Oncorhynchus kisutch) across
ecologically relevant temperatures
Dryad
dataset
2021
FOS: Biological sciences
Oncorhynchus
maximum metabolic rate
excess post-exercise oxygen consumption
critical swimming speed
Sex
Sexual dimporphism
2021-04-26T00:00:00Z
2021-04-26T00:00:00Z
en
https://doi.org/10.1093/conphys/coab016
119124 bytes
4
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Adult female Pacific salmon can have highermigrationmortality rates
thanmales, 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 (9oC,
14oC, 18oC) in fresh water. Critical swimming performance (Ucrit) was
equivalent between sexes and maximal at 14oC. 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 18oC
for both sexes. At an intermediate time scale (i.e. 5 h), recovery in
males was compromised at 14oC and 18oC 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.
All methods are described in the original published article and its
supplemental material.
Data attached contains an excel file with 3 sheets: 1) metadata, that
defines the columns and describes the units and metrics themselves, 2)
intermittent flow respiromtery data, blood biochemistry parameters, and
body morphometrics, 3) swim performance data, fish morphometrics. Any
missing values are indicated as NA and were not reported due to technical
or experimental limitations (e.g, equipment failure).