Limitations of eDNA analysis for Carcinus maenas abundance estimations.

ABSTRACT:

Background

Environmental DNA (eDNA) is an effective tool for the detection and monitoring of presence or absence of rare and invasive species. These techniques have been extended to quantify biomass in vertebrates, particularly in fish species. However, the efficacy of eDNA techniques to quantify biomass in invertebrate species has rarely been examined. This study tested whether eDNA could be used to determine the biomass of the world-wide invasive green crab, Carcinus maenas. In a controlled laboratory study, the relationship between biomass and C. maenas eDNA concentration was examined in the context of different biotic (activity) and abiotic (temperature) parameters.

Results

When incubating different numbers of crabs in sterile saltwater for up to 7 days, a relationship b

SUBMITTER: Danziger AM 

PROVIDER: S-EPMC8822865 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature