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Caroline Ledertoug Kahn

Caroline har forsket på miljø-DNA, eller eDna, som metode for å overvåke biodiversitetsendringer i nordatlantiske havområder.

(Foto: Thomas Keilman) Tittel: Monitoring Climate Change and Overfishing in North Atlantic Waters.

Av: Caroline Ledertoug Kahn, 19 år fra Danmark

Skole: Borupgaard AmtsGymnasium

Gjesteprosjekt fra Danmark

Abstract

This study investigates the use of environmental DNA (eDNA) as a method for monitoring changes in biodiversity in north Atlantic waters in relation to climatic changes.

The scientific method used to investigate this theory was a qPCR (Quantitative Polymerase Chain Reaction), after which the results are discussed using a qualitative method. In this discussion the source of errors are investigated, and the results are compared to observations in the two areas where the sampling of eDNA were conducted.

The results show a very late amplification of the eDNA from both Nuuk and Øresund, which may be caused by a degradation of the probes used to amplify the DNA. The results seems quite affected by the source of errors, making it difficult to reach a definite conclusion, and therefore not possible to make proper comparison with observations made in Nuuk or Øresund.

The sources used in the study are mostly scientific articles regarding this field of investigating or similar problems. The Internet is used to gather background knowledge and to search for scientific articles concerning the problem.

It is concluded that the method is still in need of optimization before it can be applied as a standardized method. A way to optimize the method could be by using DNA metabarcoding instead of the qPCR used in this study.

Skrevet av:
Redaksjonen
Publisert:
19.04.2017
Sist oppdatert:
21.04.2017