Publication
Title
DNA-based monitoring of the alien invasive North American crayfish Procambarus clarkii in Andean lakes (Ecuador)
Author
Abstract
In 2013 the red swamp crayfish (Procambarus clarkii) was introduced in Lake Yahuarcocha, a tropical, high altitude lake located in the Andes of northern Ecuador. Abundance of this alien invasive species has increased to such extent that it is disturbing the autochthonous aquatic ecosystem. Little is known about its distribution throughout Ecuador. Monitoring is therefore important to assess the current distribution and to control future spread. A molecular method based on environmental DNA (eDNA) was developed and used to assess the distribution of P. clarkii at 21 sites in Lake Yahuarcocha, and three sites each at Lake Caricocha and Lake San Pablo in the Ecuadorian highlands. The molecular detection of crayfish from water samples was compared to capture based distribution patterns obtained from traditional trapping. Results showed an eDNA detection accuracy of 86% in water samples, without false positives. The results indicate that this budget-friendly method is easy to use and can provide important information on the occurrence of alien invasive species in the tropics.
Language
English
Source (journal)
Limnologica. - Berlin
Limnologica. - Berlin
Publication
Berlin : 2018
ISSN
0075-9511
Volume/pages
70 (2018) , p. 20-25
ISI
000438764800003
Full text (Publisher's DOI)
Full text (open access)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 14.06.2018
Last edited 20.11.2021
To cite this reference