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Transmission dynamics of ectoparasitic gyrodactylids (Platyhelminthes, Monogenea): An integrative review

Published online by Cambridge University Press:  19 April 2022

Natalia Tepox-Vivar ,
Jessica F. Stephenson  and
Palestina Guevara-Fiore Open the ORCID record for Palestina Guevara-Fiore [Opens in a new window]
Natalia Tepox-Vivar
Affiliation:
Maestría en Ciencias Biológicas, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72592, Mexico
Jessica F. Stephenson
Affiliation:
Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
Palestina Guevara-Fiore*
Affiliation:
Facultad de Ciencias Biológicas, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72592, Mexico
*
Author for correspondence: Palestina Guevara-Fiore, E-mail: [email protected]
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Abstract

Parasite transmission is the ability of pathogens to move between hosts. As a key component of the interaction between hosts and parasites, it has crucial implications for the fitness of both. Here, we review the transmission dynamics of Gyrodactylus species, which are monogenean ectoparasites of teleost fishes and a prominent model for studies of parasite transmission. Particularly, we focus on the most studied host–parasite system within this genus: guppies, Poecilia reticulata, and G. turnbulli/G. bullatarudis. Through an integrative literature examination, we identify the main variables affecting Gyrodactylus spread between hosts, and the potential factors that enhance their transmission. Previous research indicates that Gyrodactylids spread when their current conditions are unsuitable. Transmission depends on abiotic factors like temperature, and biotic variables such as gyrodactylid biology, host heterogeneity, and their interaction. Variation in the degree of social contact between hosts and sexes might also result in distinct dynamics. Our review highlights a lack of mathematical models that could help predict the dynamics of gyrodactylids, and there is also a bias to study only a few species. Future research may usefully focus on how gyrodactylid reproductive traits and host heterogeneity promote transmission and should incorporate the feedbacks between host behaviour and parasite transmission.

Keywords

Host behaviourparatenic hostpoeciliidaeR0salmonidssex-biased parasitism
Type
Review Article
Information
Parasitology , Volume 149 , Issue 7 , June 2022 , pp. 865 - 877
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Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press

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