2013 Ammonia-oxidizing archaea and nitrite-oxidiz

2013 Ammonia-oxidizing archaea and nitrite-oxidizing nitrospiras in the biofilter of a shrimp recirculating aquaculture systemRESEARCHARTICLEAmmonia-oxidizingarchaeaandnitrite-oxidizingnitrospirasinthebiofilterofashrimprecirculatingaquaculturesystemMonishaN.Brown1,AurelioBriones2,JamesDiana3&LutgardeRaskin11DepartmentofCivilandEnvironmentalEngineering,UniversityofMichigan,AnnArbor,MI,USA;2Plant,Soil&EntomologicalSciencesDepartment,UniversityofIdaho,Moscow,ID,USA;and3SchoolofNaturalResourcesandtheEnvironment,UniversityofMichigan,AnnArbor,MI,USACorrespondence:LutgardeRaskin,DepartmentofCivilandEnvironmentalEngineering,UniversityofMichigan,AnnArbor,MI48109,USA.Tel.:+17346476920;fax:+17347632275;e-mail:raskin@umich.eduReceived10February2012;revised5July2012;accepted5July2012.Finalversionpublishedonline9August2012.DOI:10.1111/j.1574-6941.2012.01448.xEditor:CindyNakatsuKeywordsammoniaoxidation;nitriteoxidation;Nitrospira;Nitrosopumilusmaritimus;shrimpaquaculture;recirculatingaquaculturesyst