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Environ Int

Title:		Benthic foraminiferal metabarcoding and morphology-based assessment around three offshore gas platforms: Congruence and complementarity
Author(s):		Frontalini F; Cordier T; Balassi E; Armynot du Chatelet E; Cermakova K; Apotheloz-Perret-Gentil L; Martins MVA; Bucci C; Scantamburlo E; Treglia M; Bonamin V; Pawlowski J;
Address:		"Dipartimento di Scienze Pure e Applicate, Universita degli Studi di Urbino 'Carlo Bo', Urbino, Italy. Department of Genetics and Evolution, University of Geneva, Geneva, Switzerland. Laboratoire d'Oceanologie et de Geosciences UMR 8187 LOG CNRS/Lille/ULCO, Universite de Lille, Bat SN5, Cite Scientifique, 59655 Villeneuve d'Ascq, France. ID-Gene ecodiagnostics, Campus Biotech Innovation Park, 1202 Geneva, Switzerland. Department of Genetics and Evolution, University of Geneva, Geneva, Switzerland; ID-Gene ecodiagnostics, Campus Biotech Innovation Park, 1202 Geneva, Switzerland. Laboratory of Micropaleontology, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil; Universidade de Aveiro, GeoBioTec, Departamento de Geociencias, Aveiro, Portugal. SGS Italia S.p.A., 35010, Villafranca Padovana, Italy. Ecol Studio S.p.A. 35127, Padova, Italy. SGS Group Management Ltd, 1211, Geneva 1, Switzerland. Department of Genetics and Evolution, University of Geneva, Geneva, Switzerland; ID-Gene ecodiagnostics, Campus Biotech Innovation Park, 1202 Geneva, Switzerland; Institute of Oceanology, Polish Academy of Sciences, 81-712 Sopot, Poland"
Journal Title:		Environ Int
Year:		2020
Volume:		20200821
Issue:
Page Number:		106049 -
DOI:		10.1016/j.envint.2020.106049
ISSN/ISBN:		1873-6750 (Electronic) 0160-4120 (Linking)
Abstract:		"Since the 1960 s, there has been a rapid expansion of drilling activities in the central and northern Adriatic Sea to meet the increasing global energy demand. The discharges of organic and inorganic pollutants, as well as the alteration of the sediment substrate, are among the main impacts associated with these activities. In the present study, we evaluate the response of benthic foraminifera to the activities of three gas platforms in the northwestern Adriatic Sea, with a special focus on the Armida A platform for which extensive geochemical data (organic matter, trace elements, polycyclic aromatic hydrocarbons, other hydrocarbons, and volatile organic compounds) are available. The response to disturbance is assessed by analyzing the foraminiferal diversity using the traditional morphology-based approach and by 18S rDNA-based metabarcoding. The two methods give congruent results, showing relatively lower foraminiferal diversity and higher dominance values at stations closer to the platforms (<50 m). The taxonomic compositions of the morphological and metabarcoding datasets are very different, the latter being dominated by monothalamous, mainly soft-walled species. However, compositional changes consistently occur at 50 m from the platform and can be related to variations in sediment grain-size variation and higher concentrations of Ni, Zn, Ba, hydrocarbons and total organic carbon. Additionally, several morphospecies and Molecular Operational Taxonomic Units (MOTUs) show strong correlations with distance from the platform and with environmental parameters extracted from BIOENV analysis. Some of these MOTUs have the potential to become new bioindicators, complementing the assemblage of hard-shelled foraminiferal species detected through microscopic analyses. The congruence and complementarity between metabarcoding and morphological approaches support the application of foraminiferal metabarcoding in routine biomonitoring surveys as a reliable, time- and cost-effective methodology to assess the environmental impacts of marine industries"
Keywords:		"Biodiversity Environmental Monitoring *Foraminifera/genetics Geologic Sediments *Polycyclic Aromatic Hydrocarbons/analysis *Water Pollutants, Chemical/analysis Adriatic Sea Benthic foraminifera Gas platforms Metabarcoding Pollution;"
Notes:		"MedlineFrontalini, Fabrizio Cordier, Tristan Balassi, Eszter Armynot du Chatelet, Eric Cermakova, Kristina Apotheloz-Perret-Gentil, Laure Martins, Maria Virginia Alves Bucci, Carla Scantamburlo, Enrico Treglia, Mauro Bonamin, Vladimiro Pawlowski, Jan eng Research Support, Non-U.S. Gov't Netherlands 2020/08/25 Environ Int. 2020 Nov; 144:106049. doi: 10.1016/j.envint.2020.106049. Epub 2020 Aug 21"