کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2421465 1552831 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Interactions between Paramoeba perurans, the causative agent of amoebic gill disease, and the blue mussel, Mytilus edulis
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Interactions between Paramoeba perurans, the causative agent of amoebic gill disease, and the blue mussel, Mytilus edulis
چکیده انگلیسی


• Water-borne Paramoeba perurans densities rapidly reduced in the presence of mussels.
• No P. perurans detected in mussel tissues from natural mussel beds or fish farms.
• P. perurans detected on the surface of mussel shells up to 48 h post-exposure.
• Artificial surfaces may provide a substrate for P. perurans attachment.

Amoebic gill disease (AGD) is caused by the ectoparasite Paramoeba perurans found free-living in seawater. In recent years outbreaks of AGD have occurred in most salmon farming countries causing significant economic losses. Mussels co-cultured with salmon in integrated multi-trophic aquaculture (IMTA) systems may change pathogen dynamics on sites by acting as reservoirs or biological controls. Through the use of an 18S rRNA gene quantitative real-time PCR we tested the interactions between P. perurans and blue mussels (Mytilus edulis) under experimental conditions by means of water-borne transmission. Quantification of DNA from water samples revealed a rapid decrease in P. perurans DNA over two weeks in the presence of mussels under experimental conditions. P. perurans was detected on swabs from mussel shells up to 48 h post-exposure. Additionally, no P. perurans were detected in mussels collected from natural mussel beds and fish farms. These results indicate that mussels are not a likely reservoir host for P. perurans but may in fact actively remove water-borne P. perurans.Statement of relevanceThe blue mussel does not appear to pose a biosecurity risk as a vector for the pathogen responsible for amoebic gill disease in salmon (Paramoeba perurans), instead the presence of blue mussels in experimental challenges led to a rapid removal of the parasite. The findings provide valuable information for how mussels may modulate pathogen densities on finfish-mussel farms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture - Volume 456, 1 April 2016, Pages 1–8
نویسندگان
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