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Effects of temperature and age on the swimming behaviour of a fish parasite, Sparicotyle chrysophrii by Mar Villar-Torres; Francisco Esteban Montero; Juan Antonio Raga; Aigües Repullés-Albelda is a Agricultural and Biological Sciences article available to read on EtoBox.

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Transmission is a key process affecting the stability and dynamics of host–parasite systems and thus driving infections. Efficient management of potentially harmful parasites, such as monogeneans, is essential in aquaculture and requires an understanding of their transmission in changing environments. This study analysed the effect of larval age and water temperature on the swimming behaviour and transmission of Sparicotyle chrysophrii, a pathogenic monogenean commonly found in gilthead seabream, Sparus aurata, from the western Mediterranean Sea. Three experiments were designed to assess the effects of both factors on (1) irregular (i.e. forward, irregular, conspicuous and fast movements) and vertical swimming periods, (2) swimming speed in a thin water layer and (3) upward and downward swimming behaviour. Increasing age reduced the vertical swimming speed and the number of larvae swimming vertically, thus increasing the number of larvae at the bottom of the test tube, when oncomiracidia were added at the top. Increasing water temperature also minimized the number of vertical movements per larva as well as the vertical swimming speed, while shortening the duration of irregular and

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Author

Mar Villar-Torres; Francisco Esteban Montero; Juan Antonio Raga; Aigües Repullés-Albelda

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)