Aspects piscicoles du fleuve Argens (Var)

Kiener, A.; Delize, A.; Belkior, P.

doi:10.1051/kmae:1981014

Cited by 3 publications

(3 citation statements)

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“…On the other hand, Bathybothrium rectangulum and Rhabdochona hellichi , which are commonly found in barbels and rarely found in other fish [57], were already reported from both BB and BM [62, 65]. Similarly, Gyrodactylus katharineri , G. hemibarbi and G. markewitchi found in both Barbus species in our study, have already been documented from other cyprinids besides barbels, such as Cyprinus carpio , Alburnus alburnus , Gobio gobio , Leuciscus cephalus and Gymnocephalus cornua [66–68]; these cyprinids were already reported from the Argens River basin [33]. Finally, in our study, the monogenean parasite Paradiplozoon homoion occurred in very low abundance and prevalence on both BB and BM .…”

Section: Discussionsupporting

confidence: 84%

“…Moreover, an irrigation canal which supplies the Var department with water collected from the River Durance (Rhône River basin) enabled the very recent immigration of B. barbus individuals into the habitats of the native B. meridionalis approximately 30 years ago [31, 32]. While Kiener et al [33] in 1981 rejected the presence of B. barbus in the River Argens, hybridization between B. barbus and B. meridionalis is already occurring in this river [34]. …”

Section: Introductionmentioning

confidence: 99%

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Metazoan parasite communities: support for the biological invasion of Barbus barbus and its hybridization with the endemic Barbus meridionalis

2016

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BackgroundRecently, human intervention enabled the introduction of Barbus barbus from the Rhône River basin into the Barbus meridionalis habitats of the Argens River. After an introduction event, parasite loss and lower infection can be expected in non-native hosts in contrast to native species. Still, native species might be endangered by hybridization with the incomer and the introduction of novel parasite species. In our study, we aimed to examine metazoan parasite communities in Barbus spp. populations in France, with a special emphasis on the potential threat posed by the introduction of novel parasite species by invasive B. barbus to local B. meridionalis. MethodsMetazoan parasite communities were examined in B. barbus, B. meridionalis and their hybrids in three river basins in France. Microsatellites were used for the species identification of individual fish. Parasite abundance, prevalence, and species richness were compared. Effects of different factors on parasite infection levels and species richness were tested using GLM.ResultsMetazoan parasites followed the expansion range of B. barbus and confirmed its introduction into the Argens River. Here, the significantly lower parasite number and lower levels of infection found in B. barbus in contrast to B. barbus from the Rhône River supports the enemy release hypothesis. Barbus barbus × B. meridionalis hybridization in the Argens River basin was confirmed using both microsatellites and metazoan parasites, as hybrids were infected by parasites of both parental taxa. Trend towards higher parasite diversity in hybrids when compared to parental taxa, and similarity between parasite communities from the Barbus hybrid zone suggest that hybrids might represent “bridges” for parasite infection between B. barbus and B. meridionalis. Risk of parasite transmission from less parasitized B. barbus to more parasitized B. meridionalis indicated from our study in the Argens River might be enhanced in time as higher infection levels in B. barbus from the Rhône River were revealed. Hybrid susceptibility to metazoan parasites varied among the populations and is probably driven by host-parasite interactions and environmental forces.ConclusionsScientific attention should be paid to the threatened status of the endemic B. meridionalis, which is endangered by hybridization with the invasive B. barbus, i.e. by genetic introgression and parasite transmission.Electronic supplementary materialThe online version of this article (doi:10.1186/s13071-016-1867-9) contains supplementary material, which is available to authorized users.

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Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Metazoan parasite communities: support for the biological invasion of Barbus barbus and its hybridization with the endemic Barbus meridionalis

2016

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“…The latter seems to force B. meridionalis to occupy higher altitudes, or to hybridize with it (Berrebi et al, 1987). The only cases in which B. meridionalis is found at low altitudes are in the small tributaries of the Hérault (southern France), such as the Boyne and thc Dourbie (Le Brun, 1988), which are isolated from the main river by rocky outcrops that prevent the asccnt of B. barbus, the small coastal rivers of Roussillon, such as the Têt and the Tech (Berrcbi et al, 1988;Philippart and Berrebi, 1990), and in Provence, e. g. in the Argens (Kicner et al, 1981) and the Gapeau (Kicncr and Ollier, 1970) from which B. harhus is absent.…”

Section: Biogeographic and Paleohistoric Datamentioning

confidence: 99%

Relative ages of present populations ofBarbus barbusandBarbus meridionalis(Cyprinidae) in southern France: preliminary considerations

Persat

Berrebi

1990

Aquat. Living Resour.

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La répartition géographique des poissons d'eau douce en France : qui est autochtone et qui ne l'est pas ?

Persat

Keith

1997

Bull. Fr. Pêche Piscic.

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Aspects piscicoles du fleuve Argens (Var)

Cited by 3 publications

References 2 publications

Metazoan parasite communities: support for the biological invasion of Barbus barbus and its hybridization with the endemic Barbus meridionalis

Metazoan parasite communities: support for the biological invasion of Barbus barbus and its hybridization with the endemic Barbus meridionalis

Relative ages of present populations ofBarbus barbusandBarbus meridionalis(Cyprinidae) in southern France: preliminary considerations

La répartition géographique des poissons d'eau douce en France : qui est autochtone et qui ne l'est pas ?

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