Mysis relicta
with DNA barcode border
This small shrimp is a wonderful example of the resiliency of invertebrate life in marine and freshwater systems. My study region is on Inuinnait Nuna/Inuit Nunangat, or Inuit Homelands, in Iqaluktuttiaq, Kitlineq, Nunavut (Cambridge Bay, Victoria Island, Nunavut). Early on in my research, I came across a paper published in 1962, where the author found Mysis in a glacial lake near town (plus a handful of other aquatic invertebrates) that survived the transition from the ocean to its current freshwater home. The Laurentide ice sheet retreated about 7,000 years ago from the island. With the weight of the ice sheet gone, the land started lifting up out of the ocean through a process called isostatic rebound. Over the millennia, the lake where the Mysids live transitioned from a marine environment to fresh water. They somehow survived! After lots of planning and searching, I found some Mysids in the same lake and submitted them for DNA barcoding. DNA barcoding is a method of sequencing where a small portion of theCO1 gene in animals is sequenced. If a sequence satisfies a number of requirements, it will be assigned a barcode where each color represents half of a base pair. The red, black, green, and blue beads you see around the beaded Mysid are the actual barcodes that I found on the Barcode of Life DataSystem website. Using these sequences, we can compare specimens collected from the North-West Passage and from this glacial lake to investigate how genetically similar the two populations are. I chose to depict Mysis relicta as a piece of beadwork because I enjoy combining this cultural artistic practice with my scientific work.
About the artist
I am a Red River Metis-settler interdisciplinary researcher, beadwork artist, photographer, dog fosterer, and scrapbook enthusiast. I am currently working on a Ph.D. investigating the biodiversity of freshwater invertebrates on southern Kitlineq (Victoria Island), Nunavut using novel DNA methods. Feel free to check out my website for more on my research and art: www.daniellenowosad.com
