{"refrec":{"BRefID":410529,"RR":"<b>de Fátima Oliveira da Silva, B.; de Oliveira, A.R.G.; de Moraes Souza Pinheiro, J.V.; da Silva, B.R.P.; da Costa Pereira, R.L.M.; Pereira, L.C.C.; da Costa, R.M.</b> (2025). Diatoms of gut content of <i>Crassostrea gasar</i> (Bivalvia: Ostreidae) (Adanson, 1757) cultivated in an Amazonian Estuary (Emboraí Velho, Northern Brazil). <i>Limnological Review 25(2)</i>: 18. <a href=\"https://dx.doi.org/10.3390/limnolrev25020018\" target=\"_blank\">https://dx.doi.org/10.3390/limnolrev25020018</a>","BEntID":408338,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":". <i>Limnological Review 25(2)</i>: 18. <a href=\"https://dx.doi.org/10.3390/limnolrev25020018\" target=\"_blank\">https://dx.doi.org/10.3390/limnolrev25020018</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"de Fátima Oliveira da Silva, B.; de Oliveira, A.R.G.; de Moraes Souza Pinheiro, J.V.; da Silva, B.R.P.; da Costa Pereira, R.L.M.; Pereira, L.C.C.; da Costa, R.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"de Fátima Oliveira da Silva, B. <i>et al.</i>","Englishabstract":"The present study investigated the gut contents of oysters cultivated in the Emboraí Velho Estuary (Amazonian littoral), focusing on the analysis of diatoms. Analyses of the stomach contents from 60 adult individuals of the species Crassostrea gasar (Adanson, 1757) collected in the study environment were performed. Additional water samples were collected for the analysis of diatoms present in the estuary. The total number of diatom taxa identified in the estuary was 123, with 35.8% centric diatoms and 64.2% pennate diatoms. Organisms recorded in the analyzed oyster stomachs comprised 61 taxa, of which 37.7% were centric and 62.3% pennate diatoms. The relative abundance of Cymatosira belgica Grunow was 78.2% in April, 72.1% in June, 51.9% in September, and 91.8% in December in the estuary. However, in the gut content, it was 9.9% in April, 4.3% in June, 13.9% in September, and 45.1% in December. The relative abundance of C. belgica, as well as of other less abundant species, was not similar between the gut contents and the diatom species identified in the estuary. Our results indicate that cultivated oysters selectively feed on certain diatom species identified in the estuary, as the main species recorded in the gut contents were not similar to the most abundant and frequent species found in the estuary during the same months of the present study.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Diatoms of gut content of <i>Crassostrea gasar</i> (Bivalvia: Ostreidae) (Adanson, 1757) cultivated in an Amazonian Estuary (Emboraí Velho, Northern Brazil)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-08-11 01:34:54.903417","timezone_type":1,"timezone":"+02:00"},"AuthorKeywords":"Amazon littoral; estuary; native oyster","OtherDescriptors":null,"Notes":null,"AnaPub":2025,"MonPub":null,"DateUpdate":"2025-08-04","DateCreate":"2025-08-04","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1,"DOI":"10.3390/limnolrev25020018"},"refs":null,"anarec":{"AnaID":410529,"PubliDate":2025,"Pagination":"18","XtraPublOfAnaID":null,"ISBN":null,"Volume":"25","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":62084,"SerRR":"Limnological Review. 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