globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gbi.12237
Scopus记录号: 2-s2.0-85017350929
论文题名:
Ferrous iron- and ammonium-rich diffuse vents support habitat-specific communities in a shallow hydrothermal field off the Basiluzzo Islet (Aeolian Volcanic Archipelago).
作者: Bortoluzzi G.; Romeo T.; La Cono V.; La Spada G.; Smedile F.; Esposito V.; Sabatino G.; Di Bella M.; Canese S.; Scotti G.; Bo M.; Giuliano L.; Jones D.; Golyshin P.N.; Yakimov M.M.; Andaloro F.
刊名: Geobiology
ISSN: 1472-4677
EISSN: 1472-4669
出版年: 2017
卷: 15, 期:5
起始页码: 664
结束页码: 677
语种: 英语
英文关键词: Aeolian Islands ; chemosynthesis ; iron(II)-rich hydrothermal vents ; microbial community ; submarine volcanoes
Scopus关键词: ammonium ; benthos ; chemoautotrophy ; chemosynthesis ; colonization ; deep sea ; eolian deposit ; fauna ; geomicrobiology ; habitat structure ; hydrothermal vent ; iron ; island ; microbial community ; microbial mat ; species diversity ; submarine volcano ; Basiluzzo ; Italy ; Lipari Islands ; Messina [Sicily] ; Sicily ; Nitrospira ; Prokaryota
Scopus学科分类: Earth and Planetary Sciences: General Earth and Planetary Sciences ; Environmental Science: General Environmental Science ; Agricultural and Biological Sciences: Ecology, Evolution, Behavior and Systematic
英文摘要: Ammonium- and Fe(II)-rich fluid flows, known from deep-sea hydrothermal systems, have been extensively studied in the last decades and are considered as sites with high microbial diversity and activity. Their shallow-submarine counterparts, despite their easier accessibility, have so far been under-investigated, and as a consequence, much less is known about microbial communities inhabiting these ecosystems. A field of shallow expulsion of hydrothermal fluids has been discovered at depths of 170–400 meters off the base of the Basiluzzo Islet (Aeolian Volcanic Archipelago, Southern Tyrrhenian Sea). This area consists predominantly of both actively diffusing and inactive 1–3 meters-high structures in the form of vertical pinnacles, steeples and mounds covered by a thick orange to brown crust deposits hosting rich benthic fauna. Integrated morphological, mineralogical, and geochemical analyses revealed that, above all, these crusts are formed by ferrihydrite-type Fe3+ oxyhydroxides. Two cruises in 2013 allowed us to monitor and sampled this novel ecosystem, certainly interesting in terms of shallow-water iron-rich site. The main objective of this work was to characterize the composition of extant communities of iron microbial mats in relation to the environmental setting and the observed patterns of macrofaunal colonization. We demonstrated that iron-rich deposits contain complex and stratified microbial communities with a high proportion of prokaryotes akin to ammonium- and iron-oxidizing chemoautotrophs, belonging to Thaumarchaeota, Nitrospira, and Zetaproteobacteria. Colonizers of iron-rich mounds, while composed of the common macrobenthic grazers, predators, filter-feeders, and tube-dwellers with no representatives of vent endemic fauna, differed from the surrounding populations. Thus, it is very likely that reduced electron donors (Fe2+ and NH4 +) are important energy sources in supporting primary production in microbial mats, which form a habitat-specific trophic base of the whole Basiluzzo hydrothermal ecosystem, including macrobenthic fauna. © 2017 John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85040
Appears in Collections:影响、适应和脆弱性

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作者单位: Institute for Marine Sciences, ISMAR-CNR, Bologna, Italy; Institute for Environmental Protection and Research, ISPRA, Milazzo, Italy; Institute for Coastal Marine Environment, IAMC-CNR, Messina, Italy; Department of Physics and Earth Sciences, University of Messina, Messina, Italy; National Institute of Geophysics and Volcanology, Palermo, Italy; DISTAV, University of Genoa, Genoa, Italy; School of Environment, Natural Resources & Geography, Bangor University, Bangor, United Kingdom; School of Biological Sciences, Bangor University, Bangor, United Kingdom; Immanuel Kant Baltic Federal University, Kaliningrad, Russian Federation; Institute for Environmental Protection and Research, ISPRA, Palermo, Italy

Recommended Citation:
Bortoluzzi G.,Romeo T.,La Cono V.,et al. Ferrous iron- and ammonium-rich diffuse vents support habitat-specific communities in a shallow hydrothermal field off the Basiluzzo Islet (Aeolian Volcanic Archipelago).[J]. Geobiology,2017-01-01,15(5)
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