Leah MindorffGeological Survey of Canada - QuebecWe aim to develop a low-cost method to extract low concentrations of methane (CH4) from permafrost samples in order to measure δ13C and δD values and prepare for Δ13CH3D and 12CH2D2 measurements. This method will involve concentrating, purifying, and storing the CH4 present in the samples. As clumped isotopic measurements are anticipated, a challenge will be keeping the CH4 molecules intact. Current purification ...

Leah Mindorff

Speaker

Sam RossmanElementarPeggy OstromMichigan State UniversityKiller whales (Orcinus orca) are unrivaled apex carnivores currently experiencing dramatic population declines due to the anthropogenic depletion of salmonid species in the Pacific Northwest, USA. Thus, understanding how killer whales capture and consume prey is critical to conservation efforts and management strategies. While stable isotopes are a useful tool to understand cryptic foraging, bulk isotope a...

Sam Rossman

Speaker

Yeganeh Mirzaei and Yves GélinasConcordia University - GeotopPreserving the health of estuarine ecosystems has been an increasing challenge in the recent past with the spreading of areas affected by deep water hypoxic conditions. Hence, it is of critical importance to identify the causes of such perturbation, triggered by changing ocean circulation and increasing inputs of organic matter (OM), which results in serious threats to living species. Estuaries are large deposition ...

Yeganeh Mirzaei

Speaker