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Sökning: onr:"swepub:oai:DiVA.org:lnu-75675" > Discovery of a chem...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005052naa a2200553 4500
001oai:DiVA.org:lnu-75675
003SwePub
008180612s2016 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-756752 URI
0247 a https://doi.org/10.1016/j.dsr.2015.10.0102 DOI
040 a (SwePub)lnu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Giongo, Adrianau Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
2451 0a Discovery of a chemosynthesis-based community in the western South Atlantic Ocean
264 1b Elsevier,c 2016
338 a print2 rdacarrier
520 a Chemosynthetic communities have been described from a variety of deep-sea environments across the world's oceans. They constitute very interesting biological systems in terms of their ecology, evolution and biogeography, and also given their potential as indicators of the presence and abundance of consistent hydrocarbon-based nutritional sources. Up to now such peculiar biotic assemblages have not been reported for the western South Atlantic Ocean, leaving this large region undocumented with respect to the presence, composition and history of such communities. Here we report on the presence of a chemosynthetic community off the coast of southern Brazil, in an area where high-levels of methane and the presence of gas hydrates have been detected. We performed metagenomic analyses of the microbial community present at this site, and also employed molecular approaches to identify components of its benthic fauna. We conducted phylogenetic analyses comparing the components of this assemblage to those found elsewhere in the world, which allowed a historical assessment of the structure and dynamics of these systems. Our results revealed that the microbial community at this site is quite diverse, and contains many components that are very closely related to lineages previously sampled in ecologically similar environments across the globe. Anaerobic methanotrophic (ANME) archaeal groups were found to be very abundant at this site, suggesting that methane is indeed an important source of nutrition for this community. In addition, we document the presence at this site of a vestimentiferan siboglinid polychaete and the bivalve Acharax sp., both of which are typical components of deep-sea chemosynthetic communities. The remarkable similarity in biotic composition between this area and other deep-sea communities across the world supports the interpretation that these assemblages are historically connected across the global oceans, undergoing colonization from distant sites and influenced by local ecological features that select a stereotyped suite of specifically adapted organisms. (C) 2015 Elsevier Ltd. All rights reserved.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Miljövetenskap0 (SwePub)105022 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Environmental Sciences0 (SwePub)105022 hsv//eng
653 a ANME
653 a Methanogens
653 a Methanotrophs
653 a Deep-sea
653 a Miljövetenskap
653 a Environmental Science
7001 a Haag, Taianau Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Lopes Simao, Taiz L.u Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Medina-Silva, Renatau Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Utz, Laura R. P.u Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Bogo, Mauricio R.u Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Bonatto, Sandro L.u Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Zamberlan, Priscilla M.u Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Augustin, Adolpho H.u Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Lourega, Rogerio V.u Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Rodrigues, Luiz F.u Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Sbrissa, Gesiane F.u Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7001 a Kowsmann, Renato O.u Petrobras SA, Brazil4 aut
7001 a Freire, Antonio F. M.u Petrobras SA, Brazil4 aut
7001 a Miller, Dennis J.u Petrobras SA, Brazil4 aut
7001 a Viana, Adriano R.u Petrobras SA, Brazil4 aut
7001 a Ketzer, João Marcelou Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut0 (Swepub:lnu)makeab
7001 a Eizirik, Eduardou Pontificia Univ Catolica Rio Grande do Sul, Brazil4 aut
7102 a Pontificia Univ Catolica Rio Grande do Sul, Brazilb Petrobras SA, Brazil4 org
7730 t Deep Sea Research Part Id : Elsevierg 112, s. 45-56q 112<45-56x 0967-0637x 1879-0119
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-75675
8564 8u https://doi.org/10.1016/j.dsr.2015.10.010

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