A review of the use of physical barriers to stop the spread of non-indigenous crayfish species
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Autor:innen
Autor:in (Körperschaft)
Publikationsdatum
04.06.2020
Typ der Arbeit
Studiengang
Sammlung
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Reviews in Fish Biology and Fisheries
Themenheft
DOI der Originalpublikation
Reihe / Serie
Reihennummer
Jahrgang / Band
30
Ausgabe / Nummer
Seiten / Dauer
423-435
Patentnummer
Verlag / Herausgebende Institution
Springer
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
Invasive non-indigenous crayfish species (NICS) are a global threat to local flora and fauna. Total eradication of an entire population of invasive NICS is a difficult task; several methods have been tested and are still being used, with varying success. Most methods reduce population size and control the species within the targeted area but do not majorly prevent further spread of NICS. However, construction of crayfish barriers can stop the spread of NICS and can therefore, be used to protect indigenous crayfish species (ICS). There are currently very few published scientific papers about this topic. This review reflects current knowledge on how to stop migration when NICS are established and provides useful information for the construction of barriers. The most important findings related to building a crayfish barrier are: the need for a vertical wall with an overhanging lip above the water surface; smooth sections to prevent crayfish from walking or climbing over the obstacle, combined with flow velocities of 0.65 m/s act as a barrier within the waterbody. Additionally, modifications to existing structures, bridges, culverts and dams reduce costs and increase effectiveness in stopping upstream migration of NICS. Barriers can negatively impact certain aquatic species, mainly benthic and slow swimming fish by preventing their migration and genetic exchange. However, they can have positive impacts for ICS and other indigenous organisms against the negative effects of NICS. Local legislation should support barrier construction to prevent the spread of invasive crayfish and other aquatic invaders to protect ark sites for ICS.
Schlagwörter
Management, Migration, Invasive, Fish-passable, Dam, Dispersal
Fachgebiet (DDC)
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
1573-5184
0960-3166
0960-3166
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Lizenz
Zitation
KRIEG, Raphael und Armin ZENKER, 2020. A review of the use of physical barriers to stop the spread of non-indigenous crayfish species. Reviews in Fish Biology and Fisheries. 4 Juni 2020. Bd. 30, S. 423–435. Verfügbar unter: https://irf.fhnw.ch/handle/11654/32387