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BENTHIC FORAMINIFERA ASSOCIATED WITH THE SOUTH BAHIA CORAL REEFS, BRAZIL

2008; Cushman Foundation for Foraminiferal Research; Volume: 38; Issue: 1 Linguagem: Inglês

10.2113/gsjfr.38.1.23

1943-264X

Helisângela Acris Borges de Araújo, Altair de Jesus Machado,

Paleontology and Stratigraphy of Fossils

Research Article| January 01, 2008 BENTHIC FORAMINIFERA ASSOCIATED WITH THE SOUTH BAHIA CORAL REEFS, BRAZIL Helisângela Acris Borges De Araújo; Helisângela Acris Borges De Araújo 1Universidade Federal da Bahia, Rua Caetano Moura, 123, Federação, CEP: 40210-340, Salvador, Bahia, Brazil. Search for other works by this author on: GSW Google Scholar Altair De Jesus Machado Altair De Jesus Machado 3 2Av. Cardeal da Silva, 32, Apt° 101, Federação, 40.220-141, Salvador, Bahia, Brazil. 3Correspondence author. E-mail: altair@ufba.br Search for other works by this author on: GSW Google Scholar Author and Article Information Helisângela Acris Borges De Araújo 1Universidade Federal da Bahia, Rua Caetano Moura, 123, Federação, CEP: 40210-340, Salvador, Bahia, Brazil. Altair De Jesus Machado 3 2Av. Cardeal da Silva, 32, Apt° 101, Federação, 40.220-141, Salvador, Bahia, Brazil. 3Correspondence author. E-mail: altair@ufba.br Publisher: Cushman Foundation for Foraminiferal Research Received: 15 Feb 2006 Accepted: 18 Sep 2007 First Online: 03 Mar 2017 Online ISSN: 1943-264X Print ISSN: 0096-1191 © 2008 Journal of Foraminiferal Research Journal of Foraminiferal Research (2008) 38 (1): 23–38. https://doi.org/10.2113/gsjfr.38.1.23 Article history Received: 15 Feb 2006 Accepted: 18 Sep 2007 First Online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Helisângela Acris Borges De Araújo, Altair De Jesus Machado; BENTHIC FORAMINIFERA ASSOCIATED WITH THE SOUTH BAHIA CORAL REEFS, BRAZIL. Journal of Foraminiferal Research 2008;; 38 (1): 23–38. doi: https://doi.org/10.2113/gsjfr.38.1.23 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyJournal of Foraminiferal Research Search Advanced Search Abstract The objective of this study was to assess foraminiferal faunas and their relationship to sediment texture and composition in the reef areas from the coastline to the 30-m isobath between the cities of Corumbau and Nova Viçosa in the extreme south of the State of Bahia. Cluster analysis of the species, identified from 38 samples of surface sediments, revealed a strong correlation with grain size. The principal relationships established between these species and the sediments were the following: (i) Amphistegina lessonii and Peneroplis carinatus were abundant in sandy carbonate sediments and (ii) Ammonia beccarii, Elphidium poeyanum, Pyrgo subsphaerica, Quinqueloculina disparilis curta and Q. lamarckiana were abundant in mixed sand and mud, whether carbonate or mixed carbonate and siliciclastic. The fluctuation in the richness index among samples indicated microenvironmental areas that were unfavorable for some foraminiferal species. Local hydrodynamic conditions result in environments with greater energy where finer sediments, together with many foraminiferal species, have been removed. In more protected areas, weaker hydrodynamic conditions permit the accumulation of fine sediments and organic matter, making the environment suitable for diverse forms of foraminifera. In general, faunal composition is typical of tropical carbonate platforms, where the reef structures provide a variety of microenvironments that account for the variations observed in the foraminiferal fauna. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.