Noviembre, 2023
Ubit. G., Werne, J.P., Scott, W., Araneda, A., Tejos, E., Moscoso, J., Contreras, S. “A tale of two lakes: Understanding the Chilean regional Common Era climate using a multiproxy lipid biomarker analysis of late Holocene lacustrine records” 17th Graduate Climate Conference, hosted by the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution at the Marine Biological Laboratory (MBL)
October, 2023
Ubit. G., Werne, J.P., Scott, W., Araneda, A., Tejos, E., Moscoso, J., Contreras, S. “Preliminary investigation of the Chilean Patagonian Common Era environmental and climatic conditions using scanning X-Ray fluorescence analysis of late Holocene lacustrine records. The Geological Society of America (GSA) Connects 2023 – Pittsburgh, Pennsylvania, USA.
Julio, 2023
Frugone-Álvarez, M., Contreras, S., Labarca, R., González-Guarda, R., Godoy-Aguirre, C., Latorre, C., Blanco, J., Delgado, A., Viña, N., Tejos, E., Valero-Garcés, B. “Climate changes inferred from sedimentary biomarkers during the Pleistocene-Holocene transition in central Chile (~34ºS)”. XXI INQUA Congress 2023, Rome, Italy.
Fuentealba, M., Latorre, C., Contreras, S., Abarzúa, A.M., Martel-Cea, J.A., Balero-Garcés, B. The lacustrine record of the Anthropocene in central Chile. XXI INQUA Congress 2023, Rome, Italy.
Noviembre, 2022
Godoy-Aguirre, C., Frugone-Álvarez, M., Fuentealba, M., Tejos, E., Contreras, S., Valero-Garcés, B., Latorre, C. “Volcanism drives fire regimes in a high Andean lake during the last 1400 years (Laguna Nieblas 36°S)”. IAL-IPA 2022, San Carlos de Bariloche, Argentine.
Fuentealba, M., Latorre, C., Aránguiz-Acuña, A., Contreras, S., Frugone-Álvarez, M., Gayó, M., Messeguer-Ruiz, O., Sarricolea, P. Past, present and future of megadroughts in high Andean lakes of northern and central Chile. IAL-IPA 2022, San Carlos de Bariloche, Argentine.
Werne, J.P., Scott, W.P., Lei, Y., O’Beirne, M.D., Tejos, E., Araneda, A., Moscoso, J., Strong, D.J., Caballero, M., Correa-Metrio, A., Perez, L., Schwalb, A., Macario-Gonzalez, L., Cohuo, S., Lozano-Garcia, S., Ortega-Guerrero, B., Contreras, S. Branched GDGTs from lake surface sediments: Testing global and local paleotemperature proxy calibrations. IAL-IPA 2022, San Carlos de Bariloche, Argentine.
Scott, W.P., Werne, J.P., Contreras, S., Araneda, A.E., Tejos, E. A Common Era climate reconstruction at Lago Frio (Northern Patagonia, Chile): testing novel geochemical proxies. IAL-IPA 2022, San Carlos de Bariloche, Argentine.
Araneda, A., Ulloa-Almonacid, M., Alvarez, D., Cruces, F., Torrejon, F., Pedreros, P., Schmidt, S., Fagel, N., Santelices-Urrutia, C., Contreras, S., Werne, J., Urrutia, R. A multiproxy sediment record of the last 200 years in Lake Llanquihue (Southern Chile): looking for productivity proxies and its usefulness in normative tools. IAL-IPA 2022, San Carlos de Bariloche, Argentine.
Cerda-Peña, C., Vequaud, P., Contreras, S., Huguet, A. Modern plant leaf waxes allow to recognize and reconstruct plant species from a mixed signal in soil and surface lake sediment at South American temperate forest. IAL-IPA 2022, San Carlos de Bariloche, Argentine.
Frugone-Alvarez, M., Gonzalez-Guarda, E., Labarca, R., Godoy, C., Contreras, S., Viña, N., Latorre, C., Blanco, J., Soto, P., Delgado-Huertas, A., Villacis, L.A., Iriarte, J., Aranbarri, J., Valero-Garces, B. Late Quaternary paleoenvironmental evolution of the geoarchaeological site TaguaTagua 3 in central Chile (~34°S). IAL-IPA 2022, San Carlos de Bariloche, Argentine.
Agosto, 2022
Ramirez-Álvarez, R., Peterson, A.T., Contreras, S., Gorski, K. Gondwanan distribution and ecological niche: deconstructing the largest disjunct freshwater fish distribution in the world. Intecol 2022, Frontiers in ecology: Science and Society, Geneva, Switzerland.
Abril, 2022
Latorre, C., Contreras, S., Jaeschke, A., Garcia, J.L., del Río, C. Ancient Tillandsia landbeckii dune ecosystems and their potential to reveal past variations in coastal fog moisture during the Holocene in the Atacama Desert. European Geosciences Union General Assembly 2022, Vienna, Austria.
December, 2021
Godoy-Aguirre, C., Frugone-Álvarez, M., Campbell, R., Contreras, S., Fuentealba, M.M., Valero-Garcés, B., Gayó, E., Iriarte, J., Maldonado, A., Latorre, C. Factores culturales y climáticos imbricados en el régimen de incendios y modificación del paisaje vegetal en Chile central durante los últimos 2.800 años. Una reconstrucción a partir del registro sedimentario de Lago Vichuquén (34 ºS). XXII del Congreso de arqueología chilena, Puerto Montt, Chile.
October, 2021
Doherty, D., Schubotz, F., Contreras, S., Saona, S., Farías, M.E., Planer-Friedrich, B., de Beer, D., Klatt, J.M. Arsenolipid characterization in high altitude Andes Lakes, 2021. Microbialites: Formation, Evolution & Diagenesis (M-FEED), Paris, Francia.
Septiembre, 2021
Véquaud P., Derenne S., Thibault A., Anquetil C., Bonanomi G., Collin S., Contreras S., Nottingham A., Sabatier P., Salinas N., Scott W.P., Werne J.P., Huguet A. Global temperature and pH calibrations based on bacterial 3-hydroxy fatty acids in soils. Oral presentation, International Meeting on Organic Geochemistry (online conference), 13-16 September 2021.
Julio, 2021
Cerda-Peña, C., Contreras, S., Scott, W., Werne, J.P. Leaf waxes in dominant vegetation and soils in two forest ecosystem of the South American temperate forest. Goldschmidt VIRTUAL 2021.
Doherty, D., Schubotz, F., Contreras, S., Saona, S., Farías, M.E., Planer-Friedrich, B., de Beer, D., Klatt, J.M. Scott, W., Werne, J.P. Arsenolipid characterization in high altitude Andes Lakes. Goldschmidt VIRTUAL 2021.
Junio, 2021
George-Nascimento, M., Oyarzún, C., Contreras, S., Vargas, F., Rodriguez, S. Miscelánea de estudios recientes en ecolgía de parásitos marinos en Chile. Reunión científica de la Sociedad Chilena de Parasitología (SOCHIPA), Via Zoom.https://sociedadchilenaparasitologia.cl/2021/06/23/reunion-cientifica-sochipa/
Mayo, 2021
Arenas, S., Contreras, S., Espinoza-González, O., Pérez-Santos, I., Barrera. F. Variabilidad espacio-temporal de la comunidad fitoplanctónica en el sistema estuarino de Reloncaví. Congreso de Ciencias del Mar XL, Via Zoom.
Diciembre, 2020
Ruiz, P., Contreras, S., Urzúa, A., Quiroga, E. Fatty acid biomarkers in three key marine species of a Chilean Patagonian fjord. 5th World Conference on Marine Biodiversity, Auckland, New Zealand. https://www.wcmb2020.org/programme/
Junio, 2020
Scott, W.P, Contreras, S., Werne, J.P. Examining Temperature Proxies Based on Branched Tetraether Membrane Lipid Abundances Derived from Lacustrine Surface Sediments and Modern Lake Temperatures in Central Chile. Goldschmidt Virtual 2020. doi.org: 10.46427/gold2020.2328
December, 2019
Scott, W.P, Contreras, S., Werne, J.P. Stable Isotopes of Lake Surface Water Along the Western Side of Southern South America. American Geophysical Union Fall Meeting 2018 – San Francisco CA, USA.
November, 2019
Barrera, F., Guzmán, C., Contreras, S., Perez-Santos, I., Espinoza-Gonzalez, O. “Physico-chemical processes in a Northern-Patagonian Fjord (Chile) and their impacts on potentially-harmful organisms”. XVIII Congreso Latinoamericano de Ciencias del Mar-COLACMAR, Mar del Plata, Argentina.
Iturra, A., Barrera, F., Contreras, S.. “Características biogeoquímicas en el Fiordo y Seno de Reloncaví”. XVIII Congreso Latinoamericano de Ciencias del Mar-COLACMAR, Mar del Plata, Argentina.
Manríquez, S., Barrera, F., Contreras, S.. Determinación del aporte terrígeno mediante el uso de biomarcadores lipídicos presentes en la materia orgánica particulada en el Seno de Reloncaví (Nord Patagonia, Chile). XVIII Congreso Latinoamericano de Ciencias del Mar-COLACMAR, Mar del Plata, Argentina.
Oyarzún, C., Contreras, S., George-Nascimento, M. “Comparación de los isótopos estables de carbono (δ13C) y nitrógeno (δ15N) entre los parásitos Aspersentis megarhynchus y Corynosoma sp. (Acanthocephala), y con su hospedador, el pez Antártico Notothenia Coriiceps”. XVIII Congreso Latinoamericano de Ciencias del Mar-COLACMAR, Mar del Plata, Argentina.
September, 2019
Cerda-Peña, C., Contreras, S., Tejos, E. “Leaf wax Abundance and distribution in vegetation and soils from South American temperate forest”. XXV IUFRO World Congress, Forest Research and Cooperation for Sustainable Development, Curitiba, Brazil.
Cerda-Peña, C., Contreras, S. Abundancia y distribución de clases de ceras de hojas en especies del bosque templado caducifolio. VI congreso nacional de flora nativa de Chile, Talca, Chile.
Cifuentes, G., Contreras, S. Evaluación del daño foliar que amenaza la Araucaria Araucana (Mol.) K. Koch, especie milenaria del bosque templado de Chile, usando ceras de hojas. VI congreso nacional de flora nativa de Chile, Talca, Chile.
Diciembre, 2018
Contreras, S., Werne, J.P., Araneda, A., Tejos, E., Moscoso, J. Abundance, distribution and stable carbon isotope composition of leaf-waxes (n-alkanes & fatty acids) from surface lake sediments along a climatological gradient on the western side of the Southern Andes. American Geophysical Union Fall Meeting 2018 – Washington DC, USA.
Scott, W.P., Contreras, S., Werne, J.P., Arnold, T.E. Hydrogen isotope compositions of plant leaf wax n-alkanoic acids across a latitudinal transect in southern South America. American Geophysical Union Fall Meeting 2018 – Washington DC, USA.
Jana, P., Araneda, A., Tejos, E., Fagel, N., Contreras, S. Finding the expression of MCA and LIA along a sediment core from northern Patagonia using fatty acids from leaf waxes. American Geophysical Union Fall Meeting 2018 – Washington DC, USA.
Noviembre, 2018
Cerda-Peña, C., Contreras, S., Rau, J. Intra-specific and inter-specific variations of leaf wax fatty acid from three plants in riparian ecosystem from temperate forest. Joint Conference on Forests and Water 2018 – Valdivia, Chile.
Mayo, 2018
Esguerra, D, Contreras, S., Lam, P. Comunidad zooplanctónica y microbiana bajo diferentes condiciones de surgencia en Chile central, Bahía de Concepción y Bahía Coliumo. Congreso de Ciencias del Mar, 2018 – Valdivia, Chile.
Ruiz, P.A., Contreras, S., Bascur, M., Guzmán, F., Quiroga, E., Urzúa, Á. Características bioquímicas de tres especies (Ctenodiscus australis (CA), Munida subrugosa (MS), Eleginops maclovinus (EM)) de la Bahía Yendegaia que describen la dinámica de las redes tróficas en los fiordos de Chile. Congreso de Ciencias del Mar, 2018 – Valdivia, Chile.
Ruiz, P.A., Contreras, S., Bascur, M., Guzmán, F., Quiroga, E., Urzúa, Á. Variación en la concentración de ácidos grasos esenciales presentes en tres especies (Ctenodiscus australis (CA), Munida subrugosa (MS), Eleginops maclovinus (EM)) de la Bahía Yendegaia para predecir a partir de su dieta el nivel trófico al que pertenecen. Congreso de Ciencias del Mar, 2018 – Valdivia, Chile.
Agosto, 2017
Contreras, S., Werne, J.P., Araneda, A. Distribution of plant wax derived n- alkanes and alkanoic acids from lacustrine sediments and climatology along the western side of the Andes. Goldschmidt, 2017 – París, Francia.
Mayo, 2017
Fuentes, C., Esguerra, D., Contreras, S., Pozo, K., Moscoso, J. Composición y Biomasa Zooplanctónica en el Golfo de Arauco Durante el Período Comprendido entre Otoño – Primavera 2016 y su Relación con Eventos de Surgencia. Congreso de Ciencias del Mar, 2017 – Valparaíso, Chile.
Abril, 2017
Placencia, J., Llanos, G., Contreras, S. Organic carbon sources across salinity gradients in Chilean Fjords: Reloncaví Fjord (~41ºS) and Southern Patagonian ice fields area (~48ºS). EGU General Assembly, 2017 – Vienna, Austria.
Noviembre, 2016
Contreras, S., Werne, J.P., Araneda, A., Conejero, A.C. Evaluando el porcentaje e isótopos estables de carbono y nitrógeno orgánico total en sedimentos superficiales lacustres como indicadores de gradientes climáticos a lo largo de la costa oeste de Sudamérica. I Congreso Iberoamericano de Limnología y XIII Congreso de la Sociedad de Limnología 2016 – Valdivia, Chile.
Bustamante-Ortega, R., Contreras, S., Pino, Yazmin. Cuantificando del aporte terrígeno al Lago Lanalhue, Región del Biobío-Chile, mediante el uso de indicadores orgánicos e inorgánicos. I Congreso Iberoamericano de Limnología y XIII Congreso de la Sociedad de Limnología 2016 – Valdivia, Chile.
Enero, 2016
Pozo, K., Torres, M., Pribylova, P., Paredes, L., Contreras, S. Hidrocarburos Aromáticos en sedimentos superficiales de la Bahía Concepción, Chile. 32° Congreso Latinoamericano de Química CLAQ 2016, Talcahuano, Chile.
Diciembre, 2015
Contreras, S., Werne, J.P., Araneda, A., Conejero, A.C. Evaluating carbon isotope signature of bulk organic matter and plant wax derived n-alkanes from lacustrine sediments as climate proxies along the western side of the Andes. American Geophysical Union Fall Meeting 2015 – San Francisco, California, USA.
Diciembre, 2014
Contreras, S., Werne, J.P., Brown, E.T., Halbur J., R., Sinninghe Damsté, J., Schouten, S., Correa-Metrio, A., Fawcett, P.J. Evaluating spatial heterogeneity and environmental variability inferred from branched glycerol dialkyl glycerol tetraethers (GDGTs) distribution in soils from Valles Caldera, New Mexico. American Geophysical Union Fall Meeting 2014 – San Francisco, California, USA.
Diciembre, 2012
Contreras, S., Werne, J.P., Brown, E.T., Scott Anderson, R., Fawcett, P.J. Tracking millennial-scale climate variability through the Marine Isotope Stage (MIS) 12 using terrigenous biomarkers in lacustrine sediments from Valles Caldera, New Mexico, USA. American Geophysical Union Fall Meeting 2012 – San Francisco, California, USA.
Werne, J.P., Halbur, J., Contreras, S., Caballero, M., Lozano, S., Correa, A., Fawcett, P.J. Complexities in the use of branched GDGT based temperature reconstruction: Case studies from the southwest USA and Mexico. American Geophysical Union Fall Meeting 2012 – San Francisco, California, USA.
Noviembre, 2012
Werne, J.P., Johnson, T.C., Abbott, A., Berke, M., Contreras, S., Halbur, J., Brown, E.T., Schouten, S., Sinninghe Damste, J.S. A 1.2 MA history of temperature and hydroclimate in the Lake Malawi Basin. The Geological Society of America (GSA) Annual Meeting and Exposition 2012 – Charlotte, North Carolina, USA.
Aogosto, 2012
Contreras, S., Werne, J.P., Brown, E.T., Scott Anderson, R., Fawcett, P.J. Tracking millennial-scale climate variability through the Marine Isotope Stage (MIS) 12 using terrigenous biomarkers in lacustrine sediments from Valles Caldera, New Mexico, USA. Gordon Research Conferences in Organic Geochemistry – Holderness, New Hampshire, USA.
Diciembre, 2011
Contreras, S., Werne, J.P., Brown, E.T., Scott Anderson, R., Fawcett, P.J. Climate variability during the Marine Isotope Stage (MIS) 12-11 transition recorded in lacustrine sediments from Valles Caldera, New Mexico, USA. American Geophysical Union Fall Meeting 2011 – San Francisco, California, USA.
Fawcett, P.J., Brown, E.T., Werne, J.P., Contreras, S., Scott Anderson, R., Dodd, J.P., Sharp, Z.D., Heikoop, J.M., Allen, C.D. Millennial-scale climate variability during a mid-Pleistocene glacial (MIS 12) from a terrestrial record in the Valles Caldera, New Mexico. American Geophysical Union Fall Meeting 2011 – San Francisco, California, USA.
Agosto, 2011
Meister, P., Contreras, S., Liu, B., Khalili, A., Ferdelman, T.G., Kuypers, M., Jørgensen, B.B. Dynamic subsurface biosphere fuelled by organic matter from the past. Goldschmidt Conference 2011 – “Earth, life and fire”, Prague, Czech Republic
Diciembre, 2010
Kalvelage, T., Contreras, S., Paulmier, A., LaRoche, J., Stramma, L., Frank, M., Lavik, G., Kuypers, M.M.M. Extent and oxygen control of pelagic nutrient removal in the OMZ off Peru. American Geophysical Union Fall Meeting 2010 – San Francisco, California, USA.
Junio, 2009
Rincón-Martinez, D., Contreras, S., Lamy, F., Tiedemann, R. Are glacials (interglacial) in the easternmost Pacific Ocean drier (wetter) during the last 300 000 years? Goldschmidt Conference 2009 – “Challenges to Our volatile Planet”, Davos, Switzerland.
Mayo, 2004
Sepúlveda, J., Pantoja, S., Hughen, K., Lange, C., Gonzalez, F., Muñoz, P., Rebolledo, L., Castro, R., Contreras, S., Avila, A., Rossel, P., Lorca, G., Salamanca, M. and Silva, N. 2005. Export productivity over the last century from sediments of Canal Puyuhuapi (44°S). XXI National meeting of Marine Sciences, University of Valparaíso, Valparaíso, Chile.
Mayo, 2001
Ahumada R., Rudolph, A. & Contreras, S. Heavy metals content (Zn, Co, Ni, Ba, Cr, V, Cu, Sr, Pb and Cd) in the Magallanes Strait, Chile”. XXI National meeting of Marine Sciences, University of Valparaíso, Valparaíso, Chile.
Octubre, 2000
Gay Mitchelson-Jacob & Sergio Contreras Quintana “Optical variability in Concepción Bay, Chile. From in situ and satellite measurements”. Oceans from Space, Venice 2000, Venice, Italy.
Octubre, 1998
Ahumada R., Rudolph, A., Pérez, C. & Contreras, S. “Methodological aspects to evaluate the impact produced by the sewage of organic matter in to a body water”. IV Meeting of analytical and environmental chemistry, Católica del Norte University, Antofagasta, Chile.
Mayo, 1998
Ahumada R. & Contreras, S. 1998. “Trace metal contents (Zn, Co, Ni, Ba, Cr, V, Cu, Sr, Pb and Cd) in the fjord’s region from Campos de Hielo Sur”. XVIII National meeting of Marine Sciences, Arturo Prat University, Iquique, Chile.
Mayo, 1997
Ahumada R. & Contreras, S. 1997. “Hypothesis over the source of cadmium content in two Bays from central Chile”. XVII National meeting of Marine Sciences, University of Chile, Santiago, Chile.
Mayo, 1996
Contreras, S., J. A. Gallardo; C. Hernández & J. M. Cancino. 1996. “Study of the macroinfauna in the sandy beach from Lenga, San Vicente Bay (Region VIII)”. XVI National meeting of Marine Sciences, University of Concepción, Concepción, Chile.
