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Mapping and monitoring

Photo: Hans Kautsky/Azote
Photo: Hans Kautsky/Azote

Mapping is the primary step to assess the amount of genetic variation that occur within and between populations of a species in a geographic area. For example, mapping can be used to identify and discriminate between fish stocks. Assessing the genetic variation can also be useful to decide if a monitoring program is required, and what design is necessary.

Monitoring the genetic biodiversity of populations and species is a way to assess genetic changes over time. For species that are subject to intense fishing or harvest, genetic monitoring is particularly important. The same goes for species that are threatened by local or global environmental change, including effects of pollution or a changing climate.

General recommendations

  • The genetic variation should be assessed in all species that have major roles in the ecosystems.
  • Monitoring programs should be developed for all of these when there is a risk of temporal changes.


Monitoring pilot

Knowledge generated in BONUS Bambi is used in a pilot project on how to incorporate genetic diversity in monitoring programs for aquatic environments. The project focuses on two species, bladder wrack (Fucus vesiculosus) and brown trout (Salmo trutta). The project is funded by the Swedish Agency for Marine and Water Management, SWAM, and is a first step towards a monitoring program for genetic diversity in Swedish waters.

Kerstin Johannesson (Fucus)
Linda Laikre (trout)

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