The health status of European silver eels, Anguilla anguilla, in the Dutch River Rhine Watershed and Lake IJsselmeer

Haenen, O.L.M.; Lehmann, Jens; Engelsma, Marc; Stürenberg, Franz-Josef; Roozenburg, Ineke; Kerkhoff, S.; Breteler, J.G.P. Klein

doi:10.1016/j.aquaculture.2010.08.026

Cited by 45 publications

(64 citation statements)

References 33 publications

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“…The fins also showed haemorrhages (Davidse et al 1999, Lee et al 1999b, Haenen et al 2002 and sometimes ulcerative lesions (Haenen et al 2002) or bloody congestion of the anal fin (Chang et al 2002). Although Haenen et al (2010) observed fin haemorrhages in 72% of AngHV1-infected Anguilla anguilla silver eels, this clinical sign was found to be nonspecific. Chang et al (2002) found that affected eels only showed pale and swollen gills.…”

mentioning

confidence: 90%

Viral diseases of wild and farmed European eel Anguilla anguilla with particular reference to the Netherlands

Beurden

Engelsma²,

Roozenburg³

et al. 2012

Dis. Aquat. Org.

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mentioning

confidence: 90%

Viral diseases of wild and farmed European eel Anguilla anguilla with particular reference to the Netherlands

Beurden

Engelsma²,

Roozenburg³

et al. 2012

Dis. Aquat. Org.

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“…Several reasons for the decline have been proposed including climate change, habitat loss, barriers to migration, overfishing, disease and pollution. One study conducted on eels from the Dutch River Rhine and Lake Ijsselmeer related to diseases, parasites, virus and bacteria (Haenen et al 2010), and another in Italy (Garigliano River) focussed on persistent organic pollutants (POPs) (Ferrante et al 2010). However, little research has been carried out specifically on silver eel quality in natural systems, and most research focuses on either contaminants or pathogens but not on both.…”

Section: Introductionmentioning

confidence: 99%

Silver European eels health in Mediterranean habitats

Amilhat

Fazio²,

Simon

et al. 2013

Ecology of Freshwater Fish

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International audienceThe degradation in the quality of silver eel and their health could have been a major factor in the collapse of the European eel (Anguilla anguilla) population. However, the health status of the spawners has been poorly studied until now. This study evaluated the quality of migrant male silver eels from four Mediterranean habitats in France presenting different degrees of contamination: Canet-Saint-Nazaire, Salses-Leucate and Bages-Sigean lagoons and La Berre River. We considered pathogens including Anguillicoloides crassus and EVEX virus and the concentration of chemical contaminants including PCBs, OCs and heavy metals. Our study results revealed different patterns of pollution and infection in the four habitats, with high individual variability. No single silver eel was free of pollution. Total dichloro-diphenyl-trichloroethane (DDT) and copper contaminations, as well as the Swim bladder Degenerative Index (induced by parasitism), were remarkably high in eels from Canet lagoon, while eels from Salses lagoon showed lower levels of contaminants and parasite infection. A non-negligible proportion of eels were strongly impacted with levels of contaminants/parasites that could potentially impair their migration and reproduction. Our study revealed low to moderate contamination levels compared with the other Mediterranean sites previously reported, except for high concentrations of DDTs and Cu in Canet lagoon. We discuss the contribution of these results in the context of possible implications for silver eels reproductive success and local eel population management

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“…For example, the genus Cyprinivirus comprises Cyprinid herpesvirus 1 (CyHV-1) e the causative agent of the fairly mild disease Carp pox [29,30], Cyprinid herpesvirus 2 (CyHV-2) e the causative agent of Herpesviral hematopoietic necrosis of goldfish (Carassius auratus) [31,32], and Cyprinid herpesvirus 3 (CyHV-3) e the causative agent of the highly virulent and contagious disease Koi herpesvirus disease in common carp and koi (Cyprinus carpio) [33e35]. The closely related eel herpesvirus Anguillid herpesvirus 1 (AngHV-1) causes a hemorrhagic disease in European eel (Anguilla anguilla), with increased mortality rates in aquaculture systems, and has a high prevalence in wild European eel stocks [36,37]. Despite the importance of the latter viruses, little is known about their virulence factors.…”

mentioning

confidence: 99%

The alloherpesviral counterparts of interleukin 10 in European eel and common carp

Beurden

Forlenza

Westphal

et al. 2011

Fish & Shellfish Immunology

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The health status of European silver eels, Anguilla anguilla, in the Dutch River Rhine Watershed and Lake IJsselmeer

Cited by 45 publications

References 33 publications

Viral diseases of wild and farmed European eel Anguilla anguilla with particular reference to the Netherlands

Viral diseases of wild and farmed European eel Anguilla anguilla with particular reference to the Netherlands

Silver European eels health in Mediterranean habitats

The alloherpesviral counterparts of interleukin 10 in European eel and common carp

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