Cookies Policy
X

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

Seasonal Changes in Calcium and Glucose Concentrations in Different Body Fluids of Anodonta Anatina (L.) (Bivalvia: Unionidae)

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.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Netherlands Journal of Zoology
For more content, see Archives Néerlandaises de Zoologie (Vol 1-17) and Animal Biology (Vol 53 and onwards).

Samples of haemolymph, extrapallial fluid and mantle cavity fluid for calcium and glucose analyses were taken in different seasons immediately after mussel collection in the field in order to see whether the calcium and glucose concentrations varied seasonally. Peak calcium concentrations in the haemolymph and extrapallial fluid (between 5 and 6 mmol/l) were found in summer when the water temperature was highest, and were lower (about 4.1-4.6 mmol/l) at other times. They only differed from each other in March, when the extrapallial fluid contained less calcium (about 3.5 mmol/l). Calcium concentration in the mantle cavity fluid was clearly higher than in the surrounding water but, during the whole year, significantly lower than in the haemolymph (about 3-4.5 mmol/l). The haemolymph glucose concentration was at its highest (about 110-125 μmol/l) in late spring and late summer, and the lowest value (50 μmol/l) was detected at midsummer between the two aforementioned peaks. During this time, mussels are releasing their gametes and rapid shell growth has begun. In the extrapallial fluid, glucose concentration was at its lowest (about 100-140 μmol/l) in summer, and from autumn to early summer it was significantly higher than in the haemolymph (140-220 μmol/l). In the mantle cavity fluid, glucose concentration was as high, or nearly as high, as in the haemolymph. The mantle cavity thus serves as a "pre-blood chamber" in the exchange of electrolytes and metabolites between the animal and the environment.

Affiliations: 1: Department of Biosciences, Division of Animal Physiology, P.O. Box 17, FIN-00014 University of Helsinki, Finland

10.1163/156854297X00229
/content/journals/10.1163/156854297x00229
dcterms_title,pub_keyword,dcterms_description,pub_author
6
3
Loading
Loading

Full text loading...

/content/journals/10.1163/156854297x00229
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/156854297x00229
Loading

Article metrics loading...

/content/journals/10.1163/156854297x00229
1996-01-01
2016-12-05

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Netherlands Journal of Zoology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation