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    Climate and season are associated with prevalence and distribution of trans-hemispheric blue crab reovirus (Callinectes sapidus reovirus 1)

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    Author
    Zhao, Mingli
    Behringer, Donald C.
    Bojko, Jamie
    Kough, Andrew S.
    Plough, Louis
    dos Santos Tavares, Camila Prestes
    Aguilar-Perera, Alfonso
    Reynoso, Omar Shamir
    Seepersad, Govind
    Maharaj, Omardath
    Sanders, Matthew B.
    Carnales, Daniela
    Fabiano, Graciela
    Carnevia, Daniel
    Freeman, Mark A.
    Atherley, Nicole A.M.
    Medero-Hernández, Lexa D.
    Schott, Eric J.
    Show allShow less

    Date
    2020-08-13
    Journal
    Marine Ecology - Progress Series
    Publisher
    Inter-Research Science Publishing
    Type
    Article
    
    Metadata
    Show full item record
    See at
    https://doi.org/10.3354/meps13405
    Abstract
    Among the many Callinectes spp. across the western Atlantic, the blue crab C. sapidus has the broadest latitudinal distribution, encompassing both tropical and temperate climates. Its life history varies latitudinally, from extended overwintering at high latitudes to year-round activity in tropical locations. Callinectes sapidus reovirus 1 (CsRV1) is a pathogenic virus first described in North Atlantic C. sapidus and has recently been detected in southern Brazil. Little information exists about CsRV1 prevalence at intervening latitudes or in overwintering blue crabs. Using a quantitative reverse transcription PCR (RT-qPCR) method, this study investigated CsRV1 prevalence in C. sapidus across latitudinal differences in temperature and crab life history, as well as in additional Callinectes spp. and within overwintering C. sapidus. CsRV1 prevalence in C. sapidus was significantly correlated with high water temperature and blue crab winter dormancy. Prevalence of CsRV1 in C. sapidus on the mid-Atlantic coast was significantly lower in winter than in summer. CsRV1 infections were not detected in other Callinectes spp. These findings revealed that CsRV1 is present in C. sapidus across their range, but not in other Callinectes species, with prevalence associated with temperature and host life history. Such information helps us to better understand the underlying mechanisms that drive marine virus dynamics under changing environmental conditions. © The authors 2020.
    Sponsors
    China Scholarship Council
    Keyword
    CsRV1
    Disease ecology
    Dormancy
    Latitudinal gradient
    Life history
    Population density
    Temperature
    Identifier to cite or link to this item
    http://hdl.handle.net/10713/13710
    ae974a485f413a2113503eed53cd6c53
    10.3354/meps13405
    Scopus Count
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