Abstract:

With the development of biotechnology, environmental DNA (eDNA) methods have become widely used in aquatic biodiversity research. Compared with traditional methods, eDNA methods can quickly detect species composition without damaging the biological samples and have the advantages of high sensitivity, saving time and labor saving, and preserving sample integrity. However, they are currently less widely used in polar marine biodiversity research. This article reviews the current status of eDNA methods, analyzes the advantages and disadvantages, considers the current status of marine fish biodiversity research in the Arctic, and discusses the potential of using eDNA methods in Arctic marine fish biodiversity research and the related challenges.

Key words: environmental DNA, Arctic region, fish biodiversity, application potential