Cookies Policy
X
Cookie Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Physiological Adaptations in Crustacea To the Environment: Oxygen Consumption as a Function of Body Weight and Environmental Temperature in the Terrestrial Isopod, Porcellio Laevis Latreille (Isopoda, Oniscoidea)

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
MyBook is a cheap paperback edition of the original book and will be sold at uniform, low price.

Buy this article

Price:
$30.00+ Tax (if applicable)
Add to Favorites

image of Crustaceana

[Oxygen consumption in intermoult tenth instar Porcellio laevis increased significantly (P<0.01) with decreasing body weight. The largest individuals (96-104 mg) had a mean oxygen consumption of only 106 μl O2/g wet weight/hr compared to the smallest isopod (43-52 mg) which had a mean oxygen consumption of 325 μl O2/g wet weight/hr. No significant variation was observed between males and females. The unit rate of metabolism for the isopod was calculated to be 180 μl O2/g wet weight/hr at 20° C. There was little variation in oxygen uptake over a temperature range of 5° C to 15° C, while the lowest and the highest oxygen uptake were observed at 5° C and 25° C, respectively. An increase in temperature beyond 30° C resulted in a significant decrease (P<0.01) in respiratory activity. Isopods respiring at 25° C in the dark showed significantly higher (P<0.01) oxygen consumption rate (180 μl O2/g wet weight/hr) than did those tested under daylight illumination (130 μl O2/g wet weight/hr). Porcellio adults have been found to be conformers since they reduce their oxygen consumption rate when the level of oxygen in the atmosphere of their niche is reduced., Oxygen consumption in intermoult tenth instar Porcellio laevis increased significantly (P<0.01) with decreasing body weight. The largest individuals (96-104 mg) had a mean oxygen consumption of only 106 μl O2/g wet weight/hr compared to the smallest isopod (43-52 mg) which had a mean oxygen consumption of 325 μl O2/g wet weight/hr. No significant variation was observed between males and females. The unit rate of metabolism for the isopod was calculated to be 180 μl O2/g wet weight/hr at 20° C. There was little variation in oxygen uptake over a temperature range of 5° C to 15° C, while the lowest and the highest oxygen uptake were observed at 5° C and 25° C, respectively. An increase in temperature beyond 30° C resulted in a significant decrease (P<0.01) in respiratory activity. Isopods respiring at 25° C in the dark showed significantly higher (P<0.01) oxygen consumption rate (180 μl O2/g wet weight/hr) than did those tested under daylight illumination (130 μl O2/g wet weight/hr). Porcellio adults have been found to be conformers since they reduce their oxygen consumption rate when the level of oxygen in the atmosphere of their niche is reduced.]

Loading

Article metrics loading...

/content/journals/10.1163/156854079x00753
1979-01-01
2015-03-04

Affiliations: 1: Department of Biology, Laurentian University of Sudbury, Sudbury, Ontario, Canada P3E 2C6

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to email alerts
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Name:*
    Email:*
    Your details
    Name:*
    Email:*
    Department:*
    Why are you recommending this title?
    Select reason:
     
     
     
     
    Other:
     
    Crustaceana — Recommend this title to your library

    Thank you

    Your recommendation has been sent to your librarian.

  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation