FN Archimer Export Format PT J TI Environmental and Benthic Community Patterns of the Shallow Hydrothermal Area of Secca Delle Fumose (Baia, Naples, Italy) BT AF Donnarumma, Luigia Appolloni, Luca Chianese, Elena Bruno, Renato Baldrighi, Elisa Guglielmo, Rosanna Russo, Giovanni F. Zeppilli, Daniela Sandulli, Roberto AS 1:1,2;2:1,2;3:1;4:3;5:4;6:5;7:1,2;8:4;9:1,2; FF 1:;2:;3:;4:;5:PDG-REM-EEP-LEP;6:;7:;8:PDG-REM-EEP-LEP;9:; C1 Laboratory of Marine Ecology, Department of Science and Technology, University of Naples “Parthenope”, Naples, Italy National Interuniversity Consortium for Marine Sciences, Rome, Italy EEP/SPICI Group/UMR 8198, Department of Sciences et Technologies, University of Lille, Villeneuve-d’Ascq, France IFREMER, Centre Brest, REM/EEP/LEP, Plouzané, France Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Naples, Italy C2 UNIV NAPLES, ITALY CONISMA, ITALY UNIV LILLE, FRANCE IFREMER, FRANCE STAZ ZOOL ANTON DOHRN, ITALY SI BREST SE PDG-REM-EEP-LEP IN WOS Ifremer UPR DOAJ copubli-france copubli-europe copubli-univ-france IF 5.247 TC 22 UR https://archimer.ifremer.fr/doc/00590/70245/68283.pdf LA English DT Article DE ;shallow hydrothermal vents;interstitial water;sediments;macrofauns;benthos;extreme habitats;Mediterranean Sea AB The occurrence of hydrothermal vent ecosystems at Secca delle Fumose, Pozzuoli Bay (Gulf of Naples), represented an opportunity to study the benthic assemblages under the thermal stress of hydrothermal emissions in a very shallow environment (9–14 m water depth). In autumn 2016, the macrobenthic community was sampled by scuba divers at four sites located in the Baia Underwater Archeological Park. Two sites were characterized by vent emissions (one with white bacterial mat scattered on the bottom and one with a yellow substrate around a geyser opening) and two at about 100 m away, used as control. Sediment and interstitial water environmental variables were measured to determine their influence on the structure of macrobenthic assemblages. A total of 1,954 macrofaunal individuals was found, characterized by great differences in abundance and species richness among sites. This pattern was correlated to the dominance of a particular set of variables that drastically change in a very small spatial scale, from one site to another. The control sites, characterized by the highest percentage of gravel in the sediments (19.67 ± 2.6%) and normal level of major ions such as Ca2+, K+, and Mg2+ in the interstitial waters, showed the highest values of sinecological indices. The “white” hydrothermal site exhibited the lowest species richness, abundance and species diversity, influenced by low pH values (∼7.6), high temperatures (∼37.53°C) and by the highest total organic carbon content (TOC 34.78%) in the sediment. The “yellow” hydrothermal site, with sediment TOC equal to 30.03% and interstitial sulfide ions measuring 130.58 ppm, showed higher values of sinecological indices than those recorded at the “white” site. Therefore, taxonomic analysis revealed a high turnover between control and vents sites. This highlights the preference for hydrothermal vents by a few resistant species, such as the gastropod Tritia cuvierii and the polychaete Capitella capitata, confirming the role of the latter species as opportunistic in extreme environments like Secca delle Fumose. PY 2019 PD NOV SO Frontiers In Marine Science SN 2296-7745 PU Frontiers Media SA VL 6 IS 685 UT 000494955500001 DI 10.3389/fmars.2019.00685 ID 70245 ER EF