Scuticociliate (Philasterides dicentrarchi) infection cluster in a multispecies marine aquarium system.

Jalenques, Marion; Lair, Stéphane; Schmidt-Posthaus, Heike; Jufer, Meret; Lamglait, Benjamin (2021). Scuticociliate (Philasterides dicentrarchi) infection cluster in a multispecies marine aquarium system. Diseases of aquatic organisms, 144, pp. 107-115. Inter-Research 10.3354/dao03580

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Scuticociliatosis, caused by ciliated protozoa of the subclass Scuticociliatia, has been associated with high mortalities in marine fish. Environmental factors such as an increase in water temperature can enhance this disease. The aim of the present report is to describe the occurrence of a cluster of cases of scuticociliatosis in a multispecies marine cold-water system in a public aquarium. Philasterides dicentrarchi was identified by PCR in formalin-fixed tissues of some of the fish showing meningitis or meningoencephalitis, dermatitis and myositis with intralesional protozoa. An increase in water temperature of approximately 2°C was identified as a potential contributing factor for this cluster of infections. Higher temperature may have enhanced the propagation or pathogenicity of scuticociliates or increased host susceptibility of some species of fish, especially wolf-eel Anarrhichthys ocellatus and spotted ratfish Hydrolagus colliei. This report also highlights the complexity of dealing with mixed species systems housing fish from different natural ecozones.

Item Type:

Journal Article (Original Article)


05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Center for Fish and Wildlife Health (FIWI)

UniBE Contributor:

Schmidt-Posthaus, Heike, Jufer, Meret


500 Science
500 Science > 570 Life sciences; biology
500 Science > 590 Animals (Zoology)
600 Technology > 610 Medicine & health
600 Technology > 630 Agriculture








Katharina Gerber-Paizs

Date Deposited:

24 Feb 2022 14:17

Last Modified:

05 Dec 2022 16:08

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

Chimaera Encephalitis Scuticociliatosis Teleost Temperature


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