Barriers against invasive crayfish species in natural waters and fish passes. Practical experience
Authors
Author (Corporation)
Publication date
01/2021
Typ of student thesis
Course of study
Collections
Type
01A - Journal article
Editors
Editor (Corporation)
Supervisor
Parent work
Global Ecology and Conservation
Special issue
DOI of the original publication
Series
Series number
Volume
25
Issue / Number
Pages / Duration
Patent number
Publisher / Publishing institution
Elsevier
Place of publication / Event location
Edition
Version
Programming language
Assignee
Practice partner / Client
Abstract
The spread of non-indigenous crayfish species poses a threat to local populations of crayfish as well as to other fauna and flora across Europe and around the world. Several methods have been used in attempt to reduce their numbers and stop their further spread. Crayfish barriers are the best way to stop the non-anthropogenic spread of established invasive crayfish populations. Up to now there are very few published papers regarding crayfish barrier design and practical experience in construction. For the last seven years, we have optimised construction and functionality of crayfish barriers, tested various building materials and planned construction of many barriers across Switzerland. In this article, we highlight our experience, share the acquired knowledge and present the newest findings regarding considerations, which must be made when planning a barrier to stop the upstream movement of non-indigenous crayfish species. From our experience we conclude that crayfish barriers work in preventing the movement of invasive species if certain factors are taken into account. Barrier design and construction must be specific for each project, because the size of the watercourse, flow velocity, bank conditions, existing constructions and accessibility, all change the way a barrier should be set-up.
Keywords
Containment, Signal crayfish, Dam, Spread, Migration, Obstacles
Subject (DDC)
590 - Tiere (Zoologie)
Event
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Conference end date
Date of the last check
ISBN
ISSN
2351-9894
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
Gold
License
Citation
KRIEG, Raphael, Alex KING und Armin ZENKER, 2021. Barriers against invasive crayfish species in natural waters and fish passes. Practical experience. Global Ecology and Conservation. Januar 2021. Bd. 25. DOI 10.1016/j.gecco.2020.e01421. Verfügbar unter: https://doi.org/10.26041/fhnw-4114