Hazard Analysis of Exotic Pathogens of Potential Threat to European Freshwater Crayfish.

Edgerton, B. F.

doi:10.1051/kmae:2002069

Cited by 20 publications

(11 citation statements)

References 19 publications

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“…Thus actual causes for mortalities may go underreported and transmission of new and novel disease agents may not be recognised (Alderman and Polglase, 1988;Edgerton et al, 2002aEdgerton, 2002;Edgerton and Owens, 1999;Romero and Jiménez, 2002). Additionally, reliance on molecular methods may lead to underreporting of disease causes and provide erroneous results Claydon et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

Diseases of crayfish: A review

Longshaw

2011

Journal of Invertebrate Pathology

137

112

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Section: Discussionmentioning

confidence: 99%

Diseases of crayfish: A review

Longshaw

2011

Journal of Invertebrate Pathology

137

112

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“…However, management still needs to understand the benefits and impacts of restocking and translocation of aquatic organisms, including the addition of parasites, pathogens and commensal species, e.g. the spread of crayfish plague across Europe (see the hazard analysis of pathogens of freshwater crayfish exotic to Europe, which is the first step of import risk analysis in EDGERTON, 2002a and2002b), e.g. the spread of crayfish plague across Europe.…”

Section: Discussionmentioning

confidence: 99%

Understanding and Managing Biodiversity in Relation to Native Crayfish Populations in Europe

Gherardi¹,

Souty‐Grosset²,

Reynolds³

2003

Bull. Fr. Pêche Piscic.

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The loss or diminution of European crayfish populations because of both habitat deterioration and competition with alien crayfish -also responsible for the dissemination of the crayfish plague -would reduce the biodiversity at the species level. The topic "What is meant by biodiversity?" in the context of native freshwater crayfish in Europe was discussed during the Kilkenny CRAYNET meeting in order to make the point about the varied meanings of biodiversity from genes and individuals to population levels.

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“…When deciding on whether to permit new importations of living animals or even animal‐based products, governments are required to substantiate decisions by adherence to internationally accepted standards, such as those developed by the OIE, or by completion of scientific import risk analyses. One of the greatest challenges to conducting these assessments for freshwater crayfish is the lack of information on their pathogenic faunas (Edgerton 2002 b , 2002 c ). First, given the underutilization of important diagnostic tools, the risk analyst must be aware that many potentially significant pathogens will not have been reported and thus cannot be included in the assessment.…”

Section: Implications For Management Of European Freshwater Crayfishmentioning

confidence: 99%

Understanding the Causes of Disease in European Freshwater Crayfish

Edgerton¹,

Henttonen

Jussila

et al. 2004

Conservation Biology

117

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Native European freshwater crayfish (Astacida, Decapoda) are under severe pressure from habitat alteration, the introduction of nonindigenous species, and epizootic disease. Crayfish plague, an acute disease of freshwater crayfish caused by the fungus-like agent Aphanomyces astaci, was introduced into Europe in the mid-nineteenth century and is responsible for ongoing widespread epizootic mortality in native European populations. We reviewed recent developments and current practices in the field of crayfish pathology. The severity of crayfish plague has resulted in an overemphasis on it. Diagnostic methods for detecting fungi and fungal-like agents, and sometimes culturing them, are frequently the sole techniques used to investigate disease outbreaks in European freshwater crayfish. Consequently, the causes of a significant proportion of outbreaks are undetermined. Pathogen groups well known for causing disease in other crustaceans, such as viruses and rickettsia-like organisms, are poorly understood or unknown in European freshwater crayfish. Moreover, the pathogenic significance of some long-known pathogens of European freshwater crayfish remains obscure. For effective management of this culturally significant and threatened resource, there is an urgent need for researchers, diagnosticians, and resource managers to address the issue of disease in European freshwater crayfish from a broader perspective than has been applied previously. Entendiendo las Causas de Enfermedad en Cangrejos Europeos de Agua DulceResumen: Los langostinos nativos de Europa (Astacida, Decapada) están bajo severa presión por alteración del hábitat, la introducción de especies no nativas y una enfermedad epizoótica. La peste de langostinos, una enfermedad aguda de langostinos de agua dulce producida por el agente micoide Aphanomyces astaci, fue introducida a Europa a mediados del siglo diecinueve y es responsable de la actual mortalidad epizoótica de poblaciones Europeas nativas. Revisamos acontecimientos recientes y prácticas actuales en el campo de la patología de langostinos. La severidad de la peste de langostinos ha resultado en un excesivoénfasis en ella. Los métodos para diagnosticar, y algunas veces cultivar, hongos y agentes micoides frecuentemente son laúnica técnica empleada al investigar brotes de la enfermedad en langostinos de agua dulce en Europa. Consecuentemente, no están determinadas las causas de una proporción significativa de los brotes. Grupos patógenos, como virus y organismos similares a rickettsias, bien conocidos por producir enfermedades en

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Hazard Analysis of Exotic Pathogens of Potential Threat to European Freshwater Crayfish.

Cited by 20 publications

References 19 publications

Diseases of crayfish: A review

Diseases of crayfish: A review

Understanding and Managing Biodiversity in Relation to Native Crayfish Populations in Europe

Understanding the Causes of Disease in European Freshwater Crayfish

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