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VIRTUE: Biodiversity indices

Biodiversity - the variation of living organisms on the earth

If you want to register your biodiversity data, click on the yellow formula-icon in the right corner.
The biodiversity on CD-racks can be influenced by several natural factors, like:
- The oxygen content of the surrounding water.
- The salinity of the water in the area.
- Presence of predators like f.ex. snails feeding on sessile organisms.
- The time of year when the racks are put out.
- How long the racks are deployed in the water.

Chemical substances and sewage can also influence the biodiversity on the racks in an area.
VIRTUE: Biodiversity indices
View data 
Register data  


How to express biodiversity in numbers:

Read more about how to calculate the biodiversity index (Let the Maryland computer calculate the Biodiversity Indices)
Read more in Swedish about Vad är biodiversitet.
Read more in Norwegian about biologisk mangfold.

Last updated: 2004-09-17 09:23. Print version