Data from: Effects of water oxygen on cardiac and metabolic responses in native and invasive green crabs (Carcinus maenas) exposed to acute warming
Data files
Jul 23, 2026 version files 92.02 KB
-
Griffin_Ern_etal2026_OxygenThermalTolerance.xlsx
89.47 KB
-
README.md
2.55 KB
Abstract
This data outlines the oxygen dependence of upper thermal limits in green crabs captured from the Swedish North Sea and the Canadian Pacific. Measurements of oxygen consumption (ṀO2) investigate how environmental dissolved oxygen (50%, 100%, and 150% air saturation) influences upper thermal limits of green crabs from capture sites on two continents. Under normoxia, green crabs exhibited an increase in ṀO2 from the 16 ºC acclimation temperature to a peak ṀO2 at 34.8 ± 1.4 ºC in Swedish crabs and 34.6 ± 0.4 ºC in Canadian crabs, followed by an abrupt decline and collapse at their upper thermal limits. Corresponding heart rate (HR) measurements in Swedish green crabs mirrored the patterns observed in ṀO2. Swedish and Canadian green crabs also responded similarly to environmental oxygen, exhibiting consistent reductions in upper thermal limits (the point of metabolic collapse) in hypoxia and negligible improvement between normoxia and hyperoxia.
Dataset DOI: 10.5061/dryad.9zw3r22wd
Description of the data and file structure
This dataset contains temperatures, metabolic rates, and heart rates for acute warming exposure under variable oxygen in invasive and native C. maenas related to the publication: "Effects of water oxygen on cardiac and metabolic responses in native and invasive green crabs (Carcinus maenas) exposed to acute warming."
Files and variables
File: Griffin_Ern_etal2026_OxygenThermalTolerance.xlsx
Description: Data for Effects of water oxygen on cardiac and metabolic responses in native and invasive green crabs (Carcinus maenas) exposed to acute warming.
Variables
- Time (h): Represents the time in hours since the trial was initiated.
- Temp (C): Represents the water temperature in degrees Celsius at the time physiological measurements were made.
- MO2 - R#: Represents the metabolic rate of C. maenas in mg of oxygen consumed per kilogram, per hour (mg O2 kg-1h-1 ), and the replicate number (R#)
- HR - R#: Represents the heart rate of C. maenas in beats per minute (BPM), and the replicate number (R#)
- NA: Notates that data is Not Available
- Canadian C. maenas 50% AS: Displays data collected for metabolic rate (MO2) and heart rate (HR) in C. maenas invasive to Canada, exposed to 50% oxygen and acute warming.
- Canadian C. maenas 100% AS: Displays data collected for metabolic rate (MO2) and heart rate (HR) in C. maenas invasive to Canada, exposed to 100% oxygen and acute warming.
- Canadian C. maenas 150% AS: Displays data collected for metabolic rate (MO2) and heart rate (HR) in C. maenas invasive to Canada, exposed to 150% oxygen and acute warming.
- Swedish C. maenas 50% AS: Displays data collected for metabolic rate (MO2) and heart rate (HR) in C. maenas native to Sweden, exposed to 50% oxygen and acute warming.
- Swedish C. maenas 100% AS: Displays data collected for metabolic rate (MO2) and heart rate (HR) in C. maenas native to Sweden, exposed to 100% oxygen and acute warming.
- Swedish C. maenas 150% AS: Displays data collected for metabolic rate (MO2) and heart rate (HR) in C. maenas native to Sweden, exposed to 150% oxygen and acute warming.
Code/software
Microsoft Excel is required to view this data. No special version or packages are required.