© 2019 by Paul Szpak. 

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HALL OF RECORDS

The most common methodology employed by members of the lab is the analysis of stable carbon and nitrogen isotopic compositions by EA-IRMS. Below are the records for the lowest and highest delta values recorded by year. Samples must be from an identifiable taxon.

2017

Highest δ15N

Lowest δ15N

Highest δ13C

Lowest δ13C

2017

46 - Polar bear

δ15N = +25.25 ‰

8 - Lemming

δ15N = +0.32 ‰

12069 - Swordfish

δ13C = −9.60 ‰

459 - Llama/alpaca

δ13C = −22.23 ‰

2017

2018

788 - Polar bear

δ15N = +25.01 ‰

546 - Algarrobo

δ15N = +1.76 ‰

559 - Maize

δ13C = −9.31 ‰

560 - Guava

δ13C = −27.44 ‰

PEOPLE'S CHOICE AWARD

Voted on by lab members as the coolest sample analyzed in a calendar year.

2017

2018

2019

2020

527 - Vizcacha fleece

A fleece sample made from the hair of the vizcacha. This sample comes from a site in the Pampa del Tamarugal in the Atacama Desert of northern Chile that was occupied by hunter-gatherers ~11,500 years ago.

You can read more about this sample in this paper.

604 - Narluga

A sample of bone from the world's only confirmed beluga-narwhal hybrid (the 'narluga') from Disko Bay (West Greenland). This specimen is housed at the  Zoological Museum in Copenhagen.

You can read more about this sample in this paper.