Emma Versteegh

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NASA: Extreme shrimp may hold clues to alien life

NASA: Extreme shrimp may hold clues to alien life

Originally posted on fox13now.com:
Shrimp crawling around rock chimneys spewing hot water deep in the Caribbean Sea may hold clues to the kinds of life that can thrive in extreme environments on other planets, NASA says. The shrimp are called Rimicaris hybisae (no, we can’t pronounce it either). They live in clumps on…

Extreme Shrimp May Hold Clues to Alien Life

Originally posted on Emma Versteegh:
Shrimp called Rimicaris hybisae at deep hydrothermal vents in the Caribbean seem to have different dietary habits depending on the proximity of other shrimp. Those who live in dense clusters like this one live off bacteria primarily, but in areas where the shrimp are distributed more sparsely, the shrimp are…

Santa Cruz

Earlier this month I gave a seminar at the University of California Santa Cruz, Department of Earth & Planetary Sciences, in their Whole Earth Seminar series. A very enjoyable experience. Their campus is a redwood forest, and the people were very welcoming and interested. Though, I maybe should have talked about shells instead of hydrothermal […]

The world’s deepest hydrothermal vents: An analog for Europa?

Two weeks ago a group of students from the University of Southern California visited JPL. They all did a summer program in ocean sciences. I was one of the people telling them what “real” ocean scientists do at JPL.

Previously unsuspected dietary habits of Rimicaris hybisae

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2014

Postdoc Research Day, July 29, NASA Jet Propulsion Laboratory, Pasadena, USA. Previously unsuspected dietary habits of Rimicaris hybisae: Hydrothermal vent energy-into-biomass conversion as analog for Europa.

Goldschmidt 2014, June 8-13, Sacramento CA, USA. Unsuspected dietary habits of hydrothermal vent shrimp: the bacterivorous Rimicaris hybisae can be carnivorous or even cannibalistic. Session convener: Hydrothermal Vents: Controls and Influences – Nano-Scale to Global – On Earth and Beyond.

European Geosciences Union General Assembly 2014 (EGU2014), April 27-May 2, Vienna, Austria. Previously unsuspected dietary habits of hydrothermal vent fauna: the bactivorous shrimp Rimicaris hybisae can be carnivorous or even cannibalistic.

 

2013

Goldschmidt 2013, August 25-30, Florence, Italy. Pleistocene and Holocene temperature reconstructions using earthworm-produced calcite; The role of earthworm-produced CaCO3 in the terrestrial calcium and carbon cycles. Session convener: The role of biominerals in biogeochemical cycling.

3rd International Sclerochronology Conference, May 18-22, Caernarfon, North Wales, UK. Earthworm-secreted calcite: a new palaeoenvironmental proxy.

 

2012

European Mineralogical Concerence (EMC2012), September 2-6, Frankfurt/Main, Germany. Earthworm secreted calcium carbonate: a new palaeothermometer.

Goldschmidt 2012 – Earth in Evolution, June 24-29, Montreal, Canada. Earthworm secreted calcium carbonate – a new palaeothermometer?

11th Netherlands Earth Science Conference (NAC11), March 29-30, Veldhoven, The Netherlands. Earthworm secreted calcium carbonate – a new palaeothermometer?

 

2011

2011 Geological Society of America Annual Meeting (GSA2011) – Archean to Anthropocene: The past is the key to the future, October 9-12, Minneapolis MN, USA. Earthworm secreted calcium carbonate – a new paleothermometer?

UK Archaeological Sciences Conference 2011 (UKAS2011), 15-18 September, University of Reading, Reading, UK. Earthworm secreted calcium carbonate – a newpalaeothermometer?

Frontiers in Environmental Geoscience – Mineralogical Society‘s Annual Conference 2011, June 21-24, Aberystwyth, UK. Earthworm secreted calcite granules as a palaeoenvironmental proxy; Poster: Stable isotope and trace element composition of bivalve growth increments and ambient water in a Greenland fjord.

Environmental Mineralogy & Biogeochemistry Research 2011, May 6, The University of Edinburgh, Edinburgh, UK. Earthworm secreted calcite granules as a palaeoenvironmental proxy.

Chemical Analysis Facility Showcase, April 6, University of Reading, Reading, UK. Where does the C in earthworm secreted calcite come from?

 

2010

2nd International Sclerochronology Conference (ISC2010), July 24-28, Mainz, Germany. The application of bivalve sclerochemistry in reconstructing past Greenland meltwater runoff. A molluscan perspective on hydrological cycle dynamics in northwestern Europe.

10th Netherlands Earth Science Conference (NAC10), April 22-23, Veldhoven, The Netherlands. Blue mussels from the Scheldt estuary reveal human impact over the past two millennia.

BASIS Meeting 2010, Benelux Association of Stable Isotope Scientists, April 15-16, Arnhem, The Netherlands. Skeletal stable isotope ratios of calcifying marine organisms as proxies for past climate and human impact (invited).

 

2009

Geological Society of America 2009 Annual Meeting (GAS2009) – From Volcanoes to Vineyards: Living with Dynamic Landscapes, October 18-21, Portland OR, USA. Is Greenland ice cap meltwater runoff recorded in growth increment chemistry of the bay mussel (Mytilus trossulus)?

The Palynological Society and The Palaeobiological Society of the Netherlands/Flanders joint symposium, October 8, Loon op Zand, The Netherlands. What can freshwater mussels tell about the history of the Dutch river area? (invited)

Workshop Bivalve biomineralisation: Archival potential and proxy incorporation, May 4-5, The royal Flemish academy of Belgium for science and the arts, Brussels, Belgium. Bivalve growth increments reflect seasonal stable isotope variations of ambient water in the rivers Rhine and Meuse (invited).

European Geosciences Union General Assembly 2009 (EGU2009) , April 19-24, Vienna, Austria

 

2008

Netherlands Research School of Sedimentary Geology (NSG) Annual meeting, November 28, Utrecht, Netherlands. Freshwater bivalves record Meuse droughts: Stable oxygen isotopes in shell aragonite tell of past river dynamics (invited).

Centre for Geo-ecological Research (ICG) discussion meeting, November 18, VU University Amsterdam, Netherlands. Sclerochronology: a promising tool in palaeoclimatology and palaeoecology (invited).

Geological Society of America 2008 Joint Annual Meeting (GSA2008), October 5-9, Houston TX, USA. Equilibrium precipitation of δ18O and δ13C in unionid freshwater mussels.

Palaeobiological Society Young Researchers in Palaeobiology day, April 4, National Museum of Natural History Naturalis, Leiden, Netherlands. Zoetwatermosselen als archief voor rivieroverstromingen (invited).

European Geosciences Union General Assembly 2008 (EGU2008), April 13-18, Vienna, Austria. Stable oxygen isotopes in freshwater mussels (Unionidae) as a proxy for late Holocene floods and droughts of Rhine and Meuse; Oxygen isotopic Composition of bivalve skeletal Aragonite and river Water in a dutch Rhine Branch.

9th Netherlands Earth Science Conference (NAC9), March 18-19, Veldhoven, The Netherlands. Stable oxygen Isotopes in freshwater Mussels (Unionidae) as a Proxy for late Holocene floods and droughts of Rhine and Meuse.

 

2007

Climate Changes Spatial Planning Conference, September 12-13, The Hague, The Netherlands. The chemistry of freshwater mussels as a proxy for late Holocene river conditions.

1st International Sclerochronology Conference, July 17-20, St. Petersburg FL, USA. The Chemistry of Freshwater Mussels as a Proxy for Late Holocene River Conditions in the Netherlands.

 

2006

13th Annual Symposium of the Netherlands Research School of Sedimentary Geology (NSG), November 30, Utrecht, The Netherlands. Oxygen isotopic composition of bivalve skeletal aragonite and river water in the Waal.

8th Netherlands Earth Science Conference (NAC8), April 24-25, Veldhoven, The Netherlands. The geochemistry of freshwater mussels as a proxy for palaeo-floods of rivers Rhine and Meuse (poster prize).

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