An index used in the monitoring of imposex, a condition resulting in the development of a penis and vas deferens in female gastropods when exposed to certain pollutants. The index is based on a sequence of six identified stages (number 1 to 6) in the development of imposex in female gastropods plus an initial stage (number 0). The index is the mean of the stages observed in a population (Gibbs 1999).
roswri
commented
11 months ago
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Term name (PrefLabel)
Vas Deferens Sequence Index
Definition
An index used in the monitoring of imposex, a condition resulting in the development of a penis and vas deferens in female gastropods when exposed to certain pollutants. The index is based on a sequence of six identified stages (number 1 to 6) in the development of imposex in female gastropods plus an initial stage (number 0). The index is the mean of the stages observed in a population (Gibbs 1999).
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Sources/references
https://github.com/nvs-vocabs/P01/issues/214