First report of the intracellular fish parasite <i>Sphaerothecum destruens</i> associated with the invasive topmouth gudgeon (<i>Pseudorasbora parva</i>) in France

Charrier, Amélie; Peudpiece, Margaux; Lesne, Mélanie; Daniel, P.

doi:10.1051/kmae/2016031

Cited by 7 publications

(4 citation statements)

References 20 publications

(33 reference statements)

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“…What remains an enigma, however, is the discrepancy between the magnitude of observed and predicted mortalities following S. destruens ’ emergence and the low level, virtually absent monitoring and reporting of S. destruens presence across Europe. Only four countries have tested for the presence of S. destruens and all have found the disease present in native and P. parva populations (Andreou et al., ; Spikmans et al., ; Ercan et al., ; Charrier, Peudpiece, Lesne, & Daniel, ; Boitard, Charrier, Labrut, & Jamin, ). Based on the recent work by Hardouin et al.…”

Section: Disease Risk and Early Warning Response: A Controversymentioning

confidence: 99%

The rise of the rosette agent in Europe: An epidemiological enigma

Combe

Gozlan

2018

Transbound Emerg Dis

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International biodiversity assessments often overlook the role of emerging infectious pathogens in the decline of freshwater fish populations despite the many examples of emerging diseases in other more visible taxa on a global scale. Whilst the introduction of the rosette agent Sphaerothecum destruens in Europe remained an epidemiological enigma, recent findings have shown that this parasite arrived in Europe with the introduction of the healthy carrier Pseudorasbora parva from China nearly 60 years ago and its emergence went unnoticed for over 45 years despite its severe impact on European fish biodiversity. Recent reports on the host and pathogen phylogeny point towards an ancient host-pathogen co-evolution with direct implications on disease risk. Here, we postulate that the observed rapid population decline of native fish species following their infection with virulent strains of S. destruens has underpinned the rapid establishment of P. parva populations during the invasion process. We reviewed the existing evidence supporting the claim of an S. destruens' emergence worldwide and also suggest that the origin of the US strains is to be found among contaminated Asian Oncorhynchus tshawytscha living in sympatry with native Asian P. parva population. Finally, several important preventative steps are suggested as a way to manage the impact of S. destruens on local fish communities.

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Section: Disease Risk and Early Warning Response: A Controversymentioning

confidence: 99%

The rise of the rosette agent in Europe: An epidemiological enigma

Combe

Gozlan

2018

Transbound Emerg Dis

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“…In France, invasive populations of P. parva were first reported in 1980 [33] and a survey of fish populations conducted between 1990-2009 showed that this non-native species has spread dramatically [34]. In 2016, Charrier et al [35] showed the presence of S. destruens in 12 individuals of P. parva caught in a small tributary stream of the Adour River, near Dax, France [35]. Just one year later, Boitard et al [36] reported the occurrence of two additional natural infections of salmonids in France.…”

Section: Of 33mentioning

confidence: 99%

Emergence of the Fungal Rosette Agent in the World: Current Risk to Fish Biodiversity and Aquaculture

Gozlan¹,

Combe²

2023

Preprint

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The emergence of pathogenic fungi is a major and rapidly growing problem (7% increase) that affects human and animal health, ecosystems, food security and the economy worldwide. The Dermocystida group in particular has emerged relatively recently and includes species that affect both humans and animals. Within this group, one species in particular, Sphareothecum destruens, also known as the Rosette agent, represents a major risk to global aquatic biodiversity and aquaculture and has caused severe declines in wild fish populations in Europe and large losses in salmon farms in the USA. It is a species that has been associated with a healthy carrier for millions of years but the host has managed in recent decades to invade parts of Southeast Asia, Central Asia, Europe and North Africa. In order to better understand the emergence of this new disease, we have for the first time synthesised current knowledge on the distribution, detection, prevalence of S. destruens as well as the associated mortality curves, and the potential economic impact in countries where the healthy carrier has been introduced. Finally, we propose solutions and perspectives to manage and mitigate the emergence of this fungus in countries where it has been introduced.

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“…In France, invasive populations of P. parva were first reported in 1980 [33] and a survey of fish populations conducted between 1990-2009 showed that this non-native species has spread dramatically [34]. In 2016, Charrier et al [35] showed the presence of S. destruens in 12 individuals of P. parva caught in a small tributary stream of the Adour River near Dax, France [35]. Just one year later, Boitard et al [36] reported the occurrence of two additional natural infections of salmonids in France.…”

Section: Worldwide Distribution Of Sphaerothecum Destruensmentioning

confidence: 99%

Emergence of the Fungal Rosette Agent in the World: Current Risk to Fish Biodiversity and Aquaculture

Gozlan

Combe

2023

JoF

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The emergence of pathogenic fungi is a major and rapidly growing problem (7% increase) that affects human and animal health, ecosystems, food security, and the economy worldwide. The Dermocystida group in particular has emerged relatively recently and includes species that affect both humans and animals. Within this group, one species in particular, Sphareothecum destruens, also known as the rosette agent, represents a major risk to global aquatic biodiversity and aquaculture, and has caused severe declines in wild fish populations in Europe and large losses in salmon farms in the USA. It is a species that has been associated with a healthy carrier for millions of years, but in recent decades, the host has managed to invade parts of Southeast Asia, Central Asia, Europe, and North Africa. In order to better understand the emergence of this new disease, for the first time, we have synthesized current knowledge on the distribution, detection, and prevalence of S. destruens, as well as the associated mortality curves, and the potential economic impact in countries where the healthy carrier has been introduced. Finally, we propose solutions and perspectives to manage and mitigate the emergence of this fungus in countries where it has been introduced.

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First report of the intracellular fish parasite Sphaerothecum destruens associated with the invasive topmouth gudgeon (Pseudorasbora parva) in France

Cited by 7 publications

References 20 publications

The rise of the rosette agent in Europe: An epidemiological enigma

The rise of the rosette agent in Europe: An epidemiological enigma

Emergence of the Fungal Rosette Agent in the World: Current Risk to Fish Biodiversity and Aquaculture

Emergence of the Fungal Rosette Agent in the World: Current Risk to Fish Biodiversity and Aquaculture

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