Cristian A. Vargas | Director

c vargas foto web 1

Dr. Cristian Vargas is a marine biologist and an associate professor at the Faculty of Environmental Sciences, Universidad de Concepcion (UdeC). He has been working extensively in the area of Biological Oceanography and Biogeochemistry, i.e. plankton ecology, biogeochemical processes, carbon fluxes and anthropogenic impacts. Dr. Vargas is involved in different international programs and committees related with Ocean Acidification issues. He is author of many scientific publications and he was the PI of the first Ocean Acidification Program in Chile (Anillos ACT-132), and he has led pioneering studies linking observational studies with directed experiments in micro and mesocosm facilities under multiple stressors. Dr. Vargas has a large network of international collaboration in the area of ​​Ocean Acidification, including various international research groups in Europe and the United States. Recently, he is also an Associate Researcher of the “Millennium Institute for Integrative Oceanography”, leading the research area of carbon biogeochemistry and multiple-stressors effects on marine communities in oceanic environments. Dr. Vargas is the Director of MUSELS, but he is also actively working the research area of ​​biogeochemistry of inorganic carbon and the effect of multiple stressors (e.g. temperature, oxygen, and pCO2) on target marine invertebrates.

Relevant Publications

  1. Duarte, C.H.; Navarro, J.M.; Torres, R.; Acuña, K.; Duarte, C.; Manríquez, P.H.; Lardies, M.; Lagos, N.A.; Vargas, C.A. 2014. Combined effects of temperature and Ocean acidification on the juvenile individuals of the mussel Mytilus chilensis. Journal of Sea Research 85: 308-314
  2. Vargas, C.A.; De La Hoz, M.; Aguilera, V.; San Martin, V.; Manríquez, P.H.; Navarro, J.M.; Torres, R.; Lardies, M.A.; Lagos, N. 2013. CO2-driven ocean acidification reduces larval feeding efficiency and change food selectivity in the mollusk Concholepas concholepas. Journal of Plankton Research 35(5): 1059 – 1068 doi: 10.1093/plankt/fbt045
  3. Manríquez, P.H.; Jara, M.E.; Mardones, L.; Navarro, J.M.; Torres, R.; Lardies, M.A.; Vargas, C.A. Duarte, C.; Widdicombe, S.; Salisbury, J.; Lagos, N.A. 2013. Ocean acidification affects prey-predator interactions but not net prey shell growth. PLoS ONE 8(7): e68643. doi: 10.1371/journal.pone.0068643
  4. Aguilera, V.M.; Vargas, C.A.; Manríquez, P.H.; Navarro, J.M.; Duarte, C. 2013. Low-pH Freshwater Discharges Drive Spatial and Temporal Variations in Life History Traits of Neritic Copepod Acartia tonsa. Estuaries and Coasts 36: 1084 – 1092. doi 10.1007/s12237-013-9615-2.
  5. Navarro, J.M.; Torres, R.; Acuña, K.; Duarte, C.; Manríquez, P.H.; Lardies, M.; Lagos, N.A.; Vargas, C.A.; Aguilera, V. 2013. Impact of medium-term exposure to elevated pCO2 levels on the physiological energetics of the mussel Mytilus chilensis. Chemosphere 90: 1242–1248.
  6. Vargas, C.A.; Arriagada, N.L.; Sobarzo, M.; Contreras, P.Y.; Saldías, G. 2013. Bacterial production across a river to ocean continuum in Central Chile: Implications for organic carbon cycling. Aquatic Microbial Ecology 68: 195–213.
  7. Iriarte, J.L.¸Vargas, C.A.; Bermúdez, R.; Urrutia, R.E.; Tapia, F.J. (2012) Primary production and plankton carbon biomass in a river-influenced upwelling area off Concepción, Chile. Progress in Oceanography 92(1): 97-109.
  8. Vargas, C.A.; Martínez, R.A.; San Martín, V.; Aguayo, M.; Silva, N.; Torres, R. 2011. Allocthonous subsidies of organic matter across a lake-river-fjord landscape in the Chilean Patagonia: Implications for marine plankton food webs. Continental Shelf Research, 31: 187 – 201
  9. Vargas, C.A.; Martínez, R.; Cuevas, L.A.; Pavez, M.A.; Cartes, C.; González, H.E.; Escribano R & Daneri, G. 2007. The relative importance of microbial and classical food webs in a highly productive coastal upwelling area. Limnology & Oceanography 52 (4): 1495 – 1510.
  10. Vargas, C.A.; P. Manríquez & S.A. Navarrete. 2006. Feeding by larvae of intertidal invertebrates: assessing their position in pelagic trophic webs. Ecology 87 (2): 444 – 457.
Department of Aquatic Systems
Faculty of Environmental Sciences  & Environmental Sciences Center  EULA
Universidad de Concepción
Concepción – Chile
Fax: 56-41-2207076
Sitio Web:


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