High prevalence of the parasite Sphaerothecum destruens in the invasive topmouth gudgeon Pseudorasbora parva in the Netherlands, a potential threat to native freshwater fish

Spikmans, F.; Tongeren, T. van; Alen, Theo A. van; Velde, G. van der; Camp, Huub J. M. Op den

doi:10.3391/ai.2013.8.3.12

Cited by 21 publications

(24 citation statements)

References 13 publications

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“…However, these are unlikely to detect intra-cellular pathogens such as Sphaerothecum destruens that is hosted by P. parva . This pathogen has proved difficult to detect in wild populations, due to its size and the absence of disease or gross tissue damage, but is now increasingly being detected as molecular methodologies improve, with this resulting in the recent detection of its presence and distribution in countries such as the Netherlands (Spikmans et al 2013). This is important, given that this pathogen is associated with potentially substantial mortality rates in salmonid and cyprinid fishes (Andreou et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Parasites of non-native freshwater fishes introduced into England and Wales suggest enemy release and parasite acquisition

et al. 2015

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When non-native species are introduced into a new range, their parasites can also be introduced, with these potentially spilling-over into native hosts. However, in general, evidence suggests that a high proportion of their native parasites are lost during introduction and infections by some new parasites from the native range might occur, potentially resulting in parasite spill-back to native species. These processes were investigated here using parasite surveys and literature review on seven non-native freshwater fishes introduced into England and Wales. Comparison of the mean numbers of parasite species and genera per population for each fish species England and Wales with their native ranges revealed\9 % of the native parasite fauna were present in their populations in England and Wales. There was no evidence suggesting these introduced parasites had spilled over into sympatric native fishes. The non-native fishes did acquire parasites following their introduction, providing potential for parasite spill-back to sympatric fishes, and resulted in non-significant differences in overall mean numbers of parasites per populations between the two ranges. Through this acquisition, the non-native fishes also had mean numbers of parasite species and genera per population that were not significantly different to sympatric native fishes. Thus, the non-native fishes in England and Wales showed evidence of enemy release, acquired new parasites following introduction providing potential for spill-back, but showed no evidence of parasite spill-over.

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Section: Discussionmentioning

confidence: 99%

Parasites of non-native freshwater fishes introduced into England and Wales suggest enemy release and parasite acquisition

et al. 2015

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“…In fact, similar low levels of prevalence and intensity of L. cyprinacea infection in P. parva to those in our study have been reported in the literature (Margaritov and Kiritsis, 2011). The above-mentioned parasite resistance actually refers to the resistance to the possible damaging effects of the parasite, the topmouth gudgeon being otherwise known as a healthy carrier for different parasite species (Spikmans et al, 2013) or being a host for Unonid glochidia, a relation which some authors define more as commensalism (phoresy) than parasitism (Douda et al, 2012). Secondly, we have a host-parasite combination, L. gibbosus and L. cyprinacea, which have lived in sympatry in Europe for more than 100 years, and a newly arrived host species population (P. parva).…”

Section: > Differences In Parasitological Parametersmentioning

confidence: 99%

Infestation ofLernaea cyprinacea(Copepoda: Lernaeidae) in two invasive fish species in Romania,Lepomis gibbosusandPseudorasbora parva

Stavrescu-Bedivan

Popa

2014

Knowl. Managt. Aquatic Ecosyst.

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Key-words:non-indigenous fish, host-parasite coevolution, quantitative parasitology, DNA barcoding, molecular markersIn this study we analyzed comparatively the host-parasite associations between two fish host species invasive in Europe (Lepomis gibbosus and Pseudorasbora parva) and one known generalist parasite species, the copepod Lernaea cyprinacea. We used a fragment of the hypervariable region D1-D2 of the 28S rRNA to confirm that the copepod specimens collected on both host species in our study are indeed conspecific. The prevalence of infection was significantly different between the two host species in all three aquatic ecosystems. Two populations of L. gibbosus exhibited a positive correlation coefficient between the standard body length and infection intensity, while a negative correlation coefficient was observed in one population of P. parva. This is one of the few studies providing parasitological parameters of infections of Lernaea cypriancea in Lepomis gibbosus and Pseudorasbora parva.

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“…It is known that one of the major threats for native biodiversity is the introduction of exotic species which can cause the extinction of endemic species (Simberloff, 2010;Smith et al, 2015). Several studies have reported the negative impact of P. parva on European fish species due to predation on the eggs and larvae of native species, inter-specific competition for food, and the introduction of non-native parasites (Welcomme, 1988;Gozlan et al, 2005;Pinder and Gozlan, 2005;Pollux and Korosi, 2006;Gozlan et al, 2010;Spikmans et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Status ofPseudorasbora parvain the Tiber River Basin (Umbria, central Italy) 20 years after its introduction

Carosi

Ghetti²,

Lorenzoni

2016

Knowl. Manag. Aquat. Ecosyst.

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-The aim of this research was to assess the distribution, abundance and growth of the non-native topmouth gudgeon Pseudorasbora parva that was recorded for the first time in the Tiber River Basin (central Italy) in 1994. The competitive interaction of P. parva with four native fish species was also investigated. The study area comprised 92 watercourses of the Umbrian section of the Tiber River Basin. Demographic and environmental data were collected during the period 1990−2014 in 171 sampling sites. The results of this study showed a wide distribution of P. parva in the study area, with records from 23.39% of all sampling sites (40 out of 171). This species inhabits the downstream reaches, where the presence of many non-native species and the poor environmental quality are associated with a decrease in native fish species. A total of 5570 specimens of P. parva were collected and five age classes (0 + to 4 + ) were identified. The equation for the total length-weight relationship of P. parva was W = 0.021T L 2.673±0.015 . For the chub Squalius squalus, the Tiber barbel, Barbus tyberinus, and the roach, Rutilus rubilio, the average values of the relative weight were significantly higher in the sites where P. parva was absent. The results of the present study suggest the need to undertake proper strategies for native biodiversity conservation.Key-words: non-native species / distribution / growth / relative weight / longitudinal gradient Résumé -Le statut de Pseudorasbora parva dans le bassin du fleuve Tibre (Ombrie, Italie centrale) 20 ans après son introduction. L'objectif de cette recherche était d'évaluer la distribution, l'abondance et la croissance de Pseudorasbora parva non-indigène qui a été observé pour la première fois en 1994 dans le bassin du fleuve Tibre. L'interaction compétitive de P. parva avec quatre espèces de poissons indigènes a également été étudiée. La zone d'étude comprend 92 cours d'eau de la région ombrienne du bassin du fleuve Tibre. Les données démographiques et environnementales ont été recueillies au cours de la période 1990−2014 dans 171 sites d'échantillonnage. Les résultats de cette étude ont montré une large distribution de P. parva dans la zone d'étude, avec sa présence dans 23,39% de tous les sites d'échantillonnage (40 sur 171). Cette espèce habite les tronçons aval, où la présence de nombreuses espèces non indigènes et de la faible qualité de l'environnement ont été associées à une diminution des espèces de poissons indigènes. Un total de 5570 spécimens de P. parva ont été recueillis et cinq classes d'âge (0 + à 4 + ) ont été identifiées. L'équation de la relation longueur totale − poids était W = 0.021T L 2.673±0.015 . Pour le chevesne Squalius squalus, le barbeau du Tibre Barbus tyberinus et le gardon Rutilus rubilio les valeurs moyennes du poids relatif (Wr) étaient significativement plus élevées dans les sites où P. parva était absent. Les résultats de la présente étude suggèrent la nécessité d'entreprendre des stratégies appropriées pour la conservation de la biodiv...

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High prevalence of the parasite Sphaerothecum destruens in the invasive topmouth gudgeon Pseudorasbora parva in the Netherlands, a potential threat to native freshwater fish

Cited by 21 publications

References 13 publications

Parasites of non-native freshwater fishes introduced into England and Wales suggest enemy release and parasite acquisition

Parasites of non-native freshwater fishes introduced into England and Wales suggest enemy release and parasite acquisition

Infestation ofLernaea cyprinacea(Copepoda: Lernaeidae) in two invasive fish species in Romania,Lepomis gibbosusandPseudorasbora parva

Status ofPseudorasbora parvain the Tiber River Basin (Umbria, central Italy) 20 years after its introduction

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