{"refrec":{"BRefID":34074,"RR":"<b>Cunha, M.A.; Dias, J.M.; Almeida, M.A.; Lopes, J.F.; Alcântara, F.</b> (2003). Fluxes of bacterioplankton between a tidal estuary and the sea: returning to the “Outwelling Hypothesis”. <i>Aquat. Ecol. 37(1)</i>: 45-54","BEntID":34074,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Aquat. Ecol. 37(1)</i>: 45-54","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Cunha, M.A.; Dias, J.M.; Almeida, M.A.; Lopes, J.F.; Alcântara, F.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Cunha, M.A. <i>et al.</i>","Englishabstract":"The tidal dynamics of bacterioplankton communities at the outer part of a shallow estuary (Ria de Aveiro, Portugal) were studied during 6 tidal cycles at a fixed sampling site. Bacterial numbers (0.2-8.1 × 10<sup>9</sup> cells l<sup>-1</sup>), aminopeptidase activity (189-1662 nmol l<sup>-1</sup> h<sup>-1</sup>), β-glucosidase activity (1.7-67.0 nmol l<sup>-1</sup> h<sup>-1</sup>) and potential glucose incorporation (0.48-3.99 nmol l<sup>-1</sup> h<sup>-1</sup>) followed a consistent pattern of increase during ebb and decrease during flood. Fluxes of bacterioplankton populations and associated heterotrophic activities between the estuary and the coastal area during a tidal cycle were estimated from the water flux as derived from a two-dimensional vertically-integrated numerical model. The net fluxes estimated for a tidal cycle ranged from -26.0 to -2.5 to × 10<sup>16</sup> bacterial cells. The net tidal fluxes of potential heterotrophic activities ranged from -10 to -80 mol h<sup>-1</sup> for aminopeptidase, -0.33 to -1.10 mol h<sup>-1</sup> for β-glucosidase and -0.18 to +0.03 mol h<sup>-1</sup> for glucose incorporation. Net fluxes were generally negative in sign indicating the transfer of phyto- and bacterioplankton, as well as potential capacities for the degradation and recycling of organic matter, from the outer estuarine compartment to the sea.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Fluxes of bacterioplankton between a tidal estuary and the sea: returning to the “Outwelling Hypothesis”","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":"tidal fluxes","Notes":null,"AnaPub":2003,"MonPub":null,"DateUpdate":"2019-08-06","DateCreate":"2003-04-14","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000182658800005","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":34074,"PubliDate":2003,"Pagination":"45-54","XtraPublOfAnaID":null,"ISBN":null,"Volume":"37","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42197,"SerRR":"Aquatic Ecology. 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