Interactions between Paramoeba perurans, the causative agent of amoebic gill disease, and the blue mussel, Mytilus edulis

Rolin, Christine; Graham, Jennifer; McCarthy, Una; Martín, Samuel; Matějusová, Iveta

doi:10.1016/j.aquaculture.2016.01.019

Cited by 13 publications

(10 citation statements)

References 38 publications

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“…The filter feeders will probably not act as true reservoirs capable of sustaining infective amoeba for a long time and infecting new smolt after fallowing. Rolin et al (2016) found reduced numbers of P. perurans in an experimental setting with mussels, suggesting that mussels fed on amoebae (Rolin et al 2016). In our study, not all the filter feeders of same specie (including blue mussel) were positive during the AGD outbreak, and thus, they might have fed on and such removed the amoeba.…”

Section: Discussionmentioning

confidence: 45%

“…Rolin et al . () found reduced numbers of P. perurans in an experimental setting with mussels, suggesting that mussels fed on amoebae (Rolin et al . ).…”

Section: Discussionmentioning

confidence: 99%

“…() found reduced numbers of P. perurans in an experimental setting with mussels, suggesting that mussels fed on amoebae (Rolin et al . ). In our study, not all the filter feeders of same specie (including blue mussel) were positive during the AGD outbreak, and thus, they might have fed on and such removed the amoeba.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

PCR survey for Paramoeba perurans in fauna, environmental samples and fish associated with marine farming sites for Atlantic salmon (Salmo salar L.)

Hellebø

Stene

Aspehaug

2016

Journal of Fish Diseases

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Amoebic gill disease (AGD) caused by the amoeba Paramoeba perurans is an increasing problem in Atlantic salmon aquaculture. In the present PCR survey, the focus was to identify reservoir species or environmental samples where P. perurans could be present throughout the year, regardless of the infection status in farmed Atlantic salmon. A total of 1200 samples were collected at or in the proximity to farming sites with AGD, or with history of AGD, and analysed for the presence of P. perurans. No results supported biofouling organisms, salmon lice, biofilm or sediment to maintain P. perurans. However, during clinical AGD in Atlantic salmon, the amoeba were detected in several samples, including water, biofilm, plankton, several filter feeders and wild fish. It is likely that some of these samples were positive as a result of the continuous exposure through water. Positive wild fish may contribute to the spread of P. perurans. Cleaner fish tested positive for P. perurans when salmon tested negative, indicating that they may withhold the amoeba longer than salmon. The results demonstrate the high infection pressure produced from an AGD-afflicted Atlantic salmon population and thus the importance of early intervention to reduce infection pressure and horizontal spread of P. perurans within farms.

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Section: Discussionmentioning

confidence: 45%

“…Rolin et al . () found reduced numbers of P. perurans in an experimental setting with mussels, suggesting that mussels fed on amoebae (Rolin et al . ).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

PCR survey for Paramoeba perurans in fauna, environmental samples and fish associated with marine farming sites for Atlantic salmon (Salmo salar L.)

Hellebø

Stene

Aspehaug

2016

Journal of Fish Diseases

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“…Interestingly, Molloy et al (Molloy et al, 2011) demonstrated that blue mussels are able to ingest sea lice, which can help reduce the pressure of infection with these parasites of salmon grown in the same operation. Rolin et al (Rolin et al, 2016) demonstrated that blue mussels are also capable of removing Paramoeba perurans, the infective agent implicated in Amoebic Gill Disease (AGD) of salmon.…”

Section: Multi-trophic Aquaculturementioning

confidence: 99%

Applicability of a food chain analysis on aquaculture of Atlantic salmon to identify and monitor vulnerabilities and drivers of change for the identification of emerging risks

Marvin

Bouzembrak

Asselt

et al. 2019

EFSA Supporting Publications

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The objective of Aquarius project was to test the applicability of a food chain analysis on Atlantic salmon farmed in Norway to identify and monitor vulnerabilities and drivers of change for the identification of emerging risks. To this end, a comprehensive literature review was conducted complemented with expert views collected by on‐line questionnaires and in‐depth interviews. This review provided an overview of the various stages in the supply chain from farm to consumer and the identification of i) existing and emerging human and animal health hazards, ii) vulnerabilities, iii) control measures, iv) drivers of change, and v) related indicators. Next step in the study was to i) complement the list of vulnerabilities followed by a prioritisation using focus group discussions and Failure Mode and Effect Analysis (FMEA) method and ii) link drivers of change acting upon the (prioritised) vulnerabilities and identification of associated indicators and data sources by means of a Delphi method. Based on the experiences obtained with the different methodologies during this project, the Aquarius team considers literature review, and a direct face‐to‐face interaction with experts (in‐depth interviews, focus group discussions and FMEA in a workshop setting) as being most effective regarding output and effort. The comprehensive information collected formed the basis for the methodology to baseline key indicators of the selected vulnerabilities. The methodology proposed comprised a Bayesian Network (BN) that links data sources for indicators and drivers of change to the prioritised vulnerabilities and was demonstrated for salmon health. A Decision Support System (DSS) with such BN integrated was designed. The current BN and DSS could flag an increased exposure of known hazards that may occur due to changes in indicators but new hazards are not identified. The proposed methodology could be used instead to show trends in vulnerabilities, indicators, increased exposure of known hazards and for scenario studies.

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“…Setidaknya ada 15 spesies ikan budidaya (terutama marikultur) yang dilaporkan telah mendapatkan serangan penyakit ini. Penelitian tentang penyakit AGD begitu banyak dilakukan dan salah satunya hasil diketahui bahwa vektor pembawanya adalah ektoparasit Paramoeba perurans (Rolin et al, 2016). Gambar 1.Pengaruh infeksi Caligus rogercresseyi dan Piscirickettsia salmonis terhadap kadar hemoglobin dan hematokrit darah ikan Salmo salar (González et al, 2016) Keterangan: PS + and Cal + menunjukkan kedua parasit menginfeksi, PS -dan Cal + menunjukkan Piscirickettsia salmonis menginfeksi dan Caligus rogercresseyi tidak, dan perlakuan PS -and Cal -menunjukkan kedua parasit tidak menginfeksi.…”

Section: Ektoparasit Sebagai Vektor Patogenunclassified

Ektoparasit Dalam Perspektif Perikanan Budidaya

Eliyani

2017

JURNAL KEBIJAKAN PERIKANAN INDONESIA

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Pengembangan sektor perikanan budidaya di Indonesia harus terus dilakukan mengingat hampir 70% produksi ikan berasal dari sektor ini. Dalam pengembangannya, salah satu faktor yang harus diperhatikan adalah masalah kesehatan ikan, terutama yang berhubungan dengan hama dan penyakit termasuk di dalamnya ektoparasit. Meskipun tidak mematikan ikan secara langsung, ektoparasit sangat berbahaya bagi ikan karena menjadi pintu pembuka masuknya patogen yang berbahaya bagi kehidupan ikan, baik dari jenis virus, bakteri, jamur maupun dari jenis endoparasit. Identifikasi jenis dan keberadaan ektoparasit merupakan upaya awal untuk penanggulangan maupun antisipasi agar tidak terjadi wabah ketika gejala awal sudah diketahui. Upaya lain adalah penanggulangan ketika parasit ini telah menginfeksi yang kegiatannya dapat dilakukan melalui penggunakan bahan kimia, fitokimia, fitofarmaka, maupun dengan manipulasi lingkungan dan pakan.In Indonesia, 70 percent of fish production is contributed by aquaculture activities. It is therefore necessary to prioritize this activity to sustain the share of fish and fisheries activities to Indonesian economy. Keeping the fish always in healthy condition and prevention them from diseases and parasites such as ectoparasite are important factors in aquaculture. Ectoparasite not only indirectly causing fish loss but they are also very dangerous in opening the invasion of fish pathogens (viruses, bacteria, fungi, or endoparasites). It is then necessary to identify ectoparasite as soon as early symptoms are detected so that further negative impacts could be avoided. When the parasites have already attacked, a couple of treatment could be implemented: chemical poisons, phytochemicals or other natural agents, and also applying environment and feed manipulations.

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Interactions between Paramoeba perurans, the causative agent of amoebic gill disease, and the blue mussel, Mytilus edulis

Cited by 13 publications

References 38 publications

PCR survey for Paramoeba perurans in fauna, environmental samples and fish associated with marine farming sites for Atlantic salmon (Salmo salar L.)

PCR survey for Paramoeba perurans in fauna, environmental samples and fish associated with marine farming sites for Atlantic salmon (Salmo salar L.)

Applicability of a food chain analysis on aquaculture of Atlantic salmon to identify and monitor vulnerabilities and drivers of change for the identification of emerging risks

Ektoparasit Dalam Perspektif Perikanan Budidaya

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