Researchers

Dr. Claudia Aracena Perez

She is a Marine Biologist, with a doctorate degree in Oceanography. As a marine scientist she is specialized in past and present productivity patterns in Patagoniaand the Antarctic Peninsula. Her research line involvesthe interpretation of biogeochemical proxies in sediments to reconstruct paleoproductivity history offPatagonia and the influence of the continental freshwater input .She has been recently producing a data set of long sedimentary cores obtained in the Strait of Magellan, off Taitao Peninsula,and off Chacao Channel. The temporal scale covered by these sediments starts from the Last Glacial Maximum until the Present. Her work is supported by an international network of excellence in oceanography and other Earth sciences. She enjoys to develop, execute and participate in scientific research projects in cooperation with other researchers involved the reconstruction of climatic and oceanographic variabilityin the Southern Ocean. Her technical profile includes the analysis of litogenic and organic matter content in sediment and water samples, pigments, nutrients, biogenic silica, sediment grain size analysis, microcosms culture of microalgae, environmental monitoring and survey in aquatic environments . During her last trainings she has been focused in the quantification and identification of phytoplankton. She is member of the "Network for the Postglacial Reconstruction of the Paleoproductivity in Patagonia" (Project REDI170536) and also has the support of the International Geosciences Program of UNESCO (project IGCP 681 History of Toxic Phytoplankton in Patagonia). She is a collaborator in courses of Marine Geology, Patagonian Fjords, Antarctic Oceanography and Chemical Oceanography in several chilean universities. She is happy to contribute with her expertise toyoung researchers and students who are attracted to develop their scientificcareers in the study of sediments and paleoceanography of the Southern Ocean. Additionally, has been conducting marine science outreach activities to society, directing and producing documentaries about research in marine environmentsfrom Southern Chile.

Email: claudiaaracenap@gmail.com
Information: https://www.researchgate.net/profile/Claudia_Aracena

Dr. C. Marcela Borel

She is a Researcher of CONICET (National Scientific and Technical Research Council, Argentina) at the Instituto Geológico del Sur (INGEOSUR, CONICET-UNS, Bahía Blanca) [Geological Institute of South].Her doctorate (PhD in Geology, 2003), concerned with Holocene paleoenvironmental changes in estuarine and coastal brackish-water systems of Southern Pampa, was conducted at the Universidad Nacional del Sur (UNS) [National University of South].

Her current research focuses primarily onthe diversity and distribution of organic-walled dinoflagellate cysts (dinocysts), including those of toxic species, from recent sediments of the Argentinian Shelf and its relationship with the physico-chemical characteristics of surface water masses and sediments. The tracing of Holocene environmental change in the Southwestern Pampa-Northern Patagonia coastal region by a multi-proxy approach including palynology (dinocysts and other non-pollen palynomorphs), sedimentological characteristics and geochemical data is also an important objective of her work.

She had supervised one PhD thesis at UNS, and is currently supervising and co/supervising PhD studentsat the same institution and at the Universidad Nacional de Mar del Plata.Also she participated in five oceanographic cruises of R/V Puerto Deseado(CONICET-MINDEF, Argentina) and was the coordinator and chief scientist of the 2013 Cruise “Primavera Patagónica”. She conducts aScientific and Technological Research Project (PICT): “Present and Past of Frontal Zones of the Argentine Shelf: a biological and geological perspective of dinoflagellates” funded by Scientific and Technological Research Fund (FONCYT) of Argentina. The main objective of the Project is to improve the links between benthic dinocysts, cells in the planktonic stage, presence of their toxins, and hydrographic and sedimentological characteristics.She participated, in cooperation with researchers of the Marine Ecology Group of Alfred Wegener Institute, Germany, in recent multidisciplinary investigations on links between the presence of viable cysts of toxic dinoflagellates in bottom sediments, hydrographic characteristics and toxins of Argentinian Patagonian Shelf.

Email: maborel@criba.edu.ar
Information: https://www.researchgate.net/profile/Claudia_Borel

Dr. Jimena Torres

Archeologist from Universidad de Chile. Doctor in Archeology University of Paris 1 Pantheón Sorbonne. Her research focuses on marine and terrestrial hunter-gatherers ofPatagonia. She has worked along the coast of Chile in topics on of maritime and coastal adaptations, especially on the desert coast. She has specialized in prehispanic fishing using the analysis of proxies combined with ichtioarcheological analysis, fishing technology, sclerochronology and stable isotopes of Nitrogen and Carbon. These results can provide interpretation on seasonal fishing and paleoecological issues in coastal areas characterized by human activities in the past. Currently, she is researcher of the CONICYT-PAI 77170027 project “Historical trajectories during the last 2000 years in insular Magellan: an integral approach from archeology, coastal paleoecology and inter-tidal cultural heritage”, which includes the study of archaeological sites in Patagonia as a Seno Almirantazgo, the central area of the Strait of Magellan and Seno Otway, with special attention to the ichthyarcheological evidence of the late Holocene.

Email: jimenatorreselgueta@gmail.com
Information: https://www.researchgate.net/profile/Jimena_Torres2

Mg (c) Carla Mellado Zambrano

Carla is a Marine Biologist from the Universidad Austral de Chile and Master of Science (candidate) mention Water Resources of the same headquarters. As a graduate student, she is dedicated to studying how glacier melting can affect the composition of microalgae in the fjords of Chilean Patagonia.

She has experience working with HAB`s on the coasts of Chile as a phytoplankton analyst at the Regional Center for Resource Analysis and Environment-Puerto Montt (CERAM), where she worked primarily for the Bivalve Mollusc Sanitation Program (PSMB), with special emphasis on toxic species for bivalve molluscs. Aditionally she also performed quantitatively and qualitatively analysis of microalgae for the Salmoniculture Program, specifically harmful species that affect salmon. She continued her specialization at the Institute of Fisheries Development IFOP- Puerto Montt, where she conducted quantitative analysis of marine phytoplankton, with approaches to toxic species for bivalve molluscs under the Red Tide Monitoring Program in Los Lagos Region in Chile. Her recent participation in the framework of the project “Establishment of a baseline of the genomic, toxicological and temporal cycles of the red tide and of the toxic micro-algae present on the coast of the Los Ríos region for the anticipation of public policies”, allowed Carla to devote herself to the analysis of seawater samples for chlorophyll, phytoplankton and maintenance of cultures of Alexandrium catenella dinoflagellate.

Email: carlabiomarina@gmail.com
Information: https://www.researchgate.net/profile/Carla_Mellado_Zambrano

Mg (c) Boris Ulloa-Lagos

He is a Marine Biologist from the Universidad de Concepción (UdeC), and is currently a Master's student in Paleontology at the Universidad Austral de Chile. He is a member of the Laboratory of Paleontology at Universidad Austral de Chile. His research focuses on the systematics, paleobiogeography and paleoecology of marine organisms at different geological time scales. He was research assistant at the Geological Museum of the University of Concepción and at the Paleoceanography Laboratory of the same university. He was also teaching assistant at the Austral Institute of Summer XIX "Harmful Algal Blooms": Optical and Oceanographic Approaches" (international course). He has been working since 2014 in the communication and dissemination of marine sciences and the paleontological heritage of Chile. Currently, he is working as a young researcher in the project "History of Toxic Phytoplankton in Patagonia (IGCP 681)" analyzing dinoflagellates cysts in bio-archaeological sediments of Patagonia, and their relation with coastal ethnic groups in southernmost Patagonia.

Email: borisulloalagos@gmail.com

Mg Paola Cárdenas

She is Biologist, with a master degree in Oceanography. Her research is focused on geochemical and micropaleontological parameters of the surface sediments of the Chilean Patagonia fjords, the Drake Passage and Antarctic Peninsula and its calibration with the current ocean conditions. Recently, she has published valuable information on the geochemical and microfossil composition of the sediments of Drake Passage. During her last training, she has been focused on the identification and quantification of Antarctic diatoms in an internship at Colgate University (USA). Today she is research assistant of center IDEAL (Dynamics of High Latitude Marine Ecosystems) and her main role is to study the diatoms and other silica microfossils preserved in sediments core of Bransfield Strait. Throughout her scientific career, she has always contributed to the dissemination to society, especially to students. Today she is advisor of the "KIT PRO" team, whose main objective is to teach basic programming language as a valuable tool for measuring environmental parameters.

e-mail: p.cardenas888@gmail.com, paolacardenas@udec.cl
Information: https://www.researchgate.net/scientific-contributions/2147115174_Paola_Cardenas

Lic. Juan Bautista Xillovich

Juan Bautista Xillovich is a Doctoral fellow, working in his PhD thesis entitled: “Coastal environment dynamic of North Patagonia-Southwest Pampa region during the Holocene: its response to climate change and sea level fluctuations”at the InstitutoGeológico del Sur (CONICET-Universidad Nacional del Sur), Bahía Blanca, Argentina.

His work predominantly focuses on Holocene palynology, with emphasis in organic-walled dinoflagellate cysts (dinocysts).He is particularly interested in the distribution of benthic dinocysts and their use as environmental tracers in the Argentine Shelf. A combination of palynology, sedimentology and geochemistry will be employed to provide detailed correlation of the sections and to reconstruct the depositional environments and sea-level change. He also participated in field and laboratory works of archaeological projects at the sites Villa Minoica Gaidourofas, Creta, Greece, in 2015 and Helenístic Thermas of the ancient Caulonia, Monasterace Marina, Italia, in 2013.

Email: jbxillovich@ingeosur-conicet.gob.ar

Dr. Iván Pérez-Santos

Hr is Engineer in Hydrography-Oceanography from the Navy Academic of Cuba with a doctorate in Oceanography from the University of Concepción, Chile. At the present, he is an associate professor from Centro i-mar at the Los Lagos University, Puerto Montt, Chile. He is involved in research activities in the Patagonian fjords and channels, such as vertical mixing process, land-fjords-atmospheric interactions, biophysical implications of microstructure and turbulence processes and physical and biogeochemical coupling to understand HAB events. Dr. Pérez-Santos use most of the time in fieldwork activities to install moorings, buoys, and different stations in order to collect continuous data as part of a national and international network. He extends the research activities to the student community, contributing to the formation of undergraduate and postgraduate students in collaboration with other national researches. During his life as research has been the principal investigator of some interdisciplinary projects around the thematic of physical and biophysical coupling studies, which contribute with the publication of approximately 20 WOS manuscripts.

e-mail: ivan.perez@ulagos.cl
Information: https://www.researchgate.net/profile/Ivan_Ernesto_Santos

Mg (c) Julio Poblete

He is a Marine Biologist from the Universidad de Concepción, where he is actually part of the Master in Sciences Program, mention in Oceanography. He is interested in the study of phytoplankton communities using different methodologies to study phytoplankton high frequency database, and how the oceanographic parameters have affected their distribution along the south of Chile.

Julio has researched the use of phytoplankton spectral properties and how this can be a way to identify and characterize some groups. Additionally, has experience on taxonomy of phytoplankton groups, and with microalgae culture in different medium. He worked analyzing the interannual variability of diatoms in Concepción bay, and is continuely participating in different courses to improve his expertise with phytoplankton identification.

Email: julpoblete@udec.cl

Dr. Sebastien Bertrand

He is an early-career professor in sedimentology and paleoclimatology at Ghent University, Belgium. His research focuses on reconstructing past climate and environmental change in southern South America, based on lake and fjord sediment archives. He is particularly interested in understanding the impact of climate change on glacier variability in Patagonia. He currently coordinates several sediment-based research projects in Chilean Patagonia, especially in the Baker river basin and adjacent fjords.

Email: sebastien.bertrand@ugent.be
Information: https://www.researchgate.net/profile/Sebastien_Bertrand2

Dr. Carlos Lara

I am a marine biologist from Universidad Austral de Chile, with a doctorate degree in applied ecology. I am mainly interested in explaining the complex patterns of populations observed in costal marine ecosystems. I am currently working at the Center for Natural Resources and Sustainability Research at Bernardo O'Higgins University as a principal investigator and professor in Remote Sensing and Advanced Remote Sensing courses for the Faculty of Engineering. My main contribution concern is focused on understanding spatial and temporal variation of primary and secondary production in the coastal ocean. I approach this interest in complex dynamics through the use of empirical information derived from moorings and remote sensors, together with statistical modeling. This combined approach has allowed me to explore the effects of environmental and climatic oscillations and capture their discontinuous effects on biological responses. During the last years I bolstered my analytic skills through several international internships and courses where I have deepened my knowledge of statistics and remote sensing.

e-mail: carloslara01@gmail.com
Information: http://www.cirenys.cl/carlos-lara-pena/

Dr. Giuseppe Siani

I am full professor in geologyat the University of Paris Sud. My research topics are aimed at reconstructing the recent Quaternary climate changes from a multidisciplinaryapproach (geochemistry, micropaleontology, tephrochronology, radiochronology14C) from the study of deep marine sediments. I amfocusing on the reconstruction of the chronology, duration and mechanismsbehindclimate changes. The temporal frameworkisconstrained if possible, by tephrochronology, a powerfultool of stratigraphic and chronologicalcorrelation of climaticevents to control the possible existence of synchronous or asynchronous events at the regional and inter hemispheric scale.

e-mail: giuseppe.siani@u-psud.fr

Dr. Stephanie Duchamp-Alphonse

My work aims to reconstruct paleoclimate changes and associated biogeochemical interactions within the Ocean-Atmosphere-System during the Cretaceous and the Quaternary, based on micropaleontological (coccoliths) and geochemical (COT, CaCO3, XRF, δ13C, δ18O) analyses of marine sediments. In recent years, I further centered my activity around coccolithophore productivity changes within the Southern Ocean in order to i) reconstruct past changes in seasurface conditions (fertility, [CO2aq] …) and ii) understand the leverage the Southern Ocean Biological Pump has imposed on atmospheric pCO2 over the last 800 ka (Terminations 1 and 5 in particular). Indeed, coccolithophores are single-celled phytoplankton with unique effect on the oceanic carbon cycle in that they use Dissolved Inorganic Carbon (DIC) for both photosynthesis and calcification. They account for a significant proportion of the marine export production, while the calcite plates (coccoliths) constitute an important component of settling carbonate and ballasting organic particles. Hence, coccolithophores widely contribute to the Biological Carbon Pump (BCP) and impact its strength through changes in their relative abundance and mass that modulate the POC:PIC ratio of sinking biogenic material with consequences for the air-sea partitioning of CO2. Coccolith studies (assemblages and morphometrics) are able thanks to the SYRACO software that provides coccolith abundance and mass, using automated microscope (Leica DM6000B). I complement micropalaeontological observations with profiling XRF data reflecting organic carbon and CaCO3 exports to document high-resolution changes in the POC:PIC ratio of sinking material and by inference the contribution of the BCP to the atmospheric pCO2 changes in the past.

Email: stephanie.duchamp@u-psud.fr
Information: http://www.paleoclimat.u-psud.fr/?ts-team-member=stephanieduchamp-alphonse

Phone number:

(+56) 975 136 846

E-mail us:

claudiaaracenap@gmail.com