Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Transmission and terrestrial dispersal of non-native ectosymbionts on invasive crayfish

Hunt, Rhiannon, Thomas, John, James, Joanna and Cable, Joanne 2018. Transmission and terrestrial dispersal of non-native ectosymbionts on invasive crayfish. Hydrobiologia 820 (1) , pp. 135-144. 10.1007/s10750-018-3647-3

[thumbnail of 10.1007_s10750-018-3647-3.pdf]
PDF - Published Version
Available under License Creative Commons Attribution No Derivatives.

Download (428kB) | Preview


Symbionts are a fundamental component of biological systems, and their survival is highly dependent on transmission and host movement. Ectosymbionts of amphibious animals face the added challenge of having to survive dramatic environmental changes as their hosts cross ecosystem boundaries. Within freshwaters, crayfish are amongst the most widespread invasive species that readily disperse overland and are host to a wide range of ectosymbionts. Relatively little is known about the transmission of these ectosymbionts, including their ability to survive overland host migration. Here, we assessed terrestrial emigration and both inter- and intra-specific transmissions of Xironogiton victoriensis, a non-native branchiobdellidan (Annelida: Clitellata) recently found on invasive signal crayfish (Pacifastacus leniusculus) in the UK. These branchiobdellidans tolerated desiccation and did not alter host terrestrial behaviour. Transmission was rapid between natural signal and novel virile (Orconectes cf. virilis) crayfish hosts, with host interactions facilitating transmission. Thus, branchiobdellidans can disperse via amphibious host behaviour and readily infect novel hosts. These traits facilitate symbionts’ survival and provide access to additional dispersal pathways that are likely to aid transmission.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: Springer Verlag (Germany)
ISSN: 0018-8158
Date of First Compliant Deposit: 14 May 2018
Date of Acceptance: 11 May 2018
Last Modified: 13 May 2022 21:37

Citation Data

Cited 3 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics