How many ‘value’ classes do we need for marine biological valuation?
This article stems from discussions held during a workshop on marine biological valuation, held from 6 to 8 December 2006 at Ghent (Belgium). The workshop was a joint venture of the EU CA ENCORA (http://www.encora.org) and the EU NoE MARBEF (http://www.marbef.org). Both Theme 7 within ENCORA and Theme 3 within MARBEF deal with marine/coastal biological valuation and the workshop aimed to reach a consensus on this topic. It sets out some of the questions that need to be considered.
"During the assessments it is up to the experts to decide the number of intermediate score classes, ranging from 0/1 (e.g. yes/no or presence/absence) to a continuum of scores.
However, the ‘end’ values for a component and for the final BVMs should be classified, preferably around 5 but this is dependent on the scale of the subareas within the study area (to be able to show patterns in the map)."
These paragraphs reflect the main discussion outcomes of the ENCORA Theme 7-MARBEF Theme 3 workshop on marine biological valuation (6-8 December 2006, Gent, Belgium). (http://www.marbef.org/documents/Theme3/GhentWS/report.pdf)