Insights on Copepod Ecology from the 2016 GreenEdge cruise

Insights on Copepod Ecology from the 2016 GreenEdge cruise

February 2, 2021

New results from the GreenEdge Project were published earlier this year in the journal Limnology and Oceanography .

PhD Student and corresponding author Laure Vilgrain explains:

“During the GreenEdge cruise in June and July 2016 aboard the CCGS Amundsen, an advanced imaging system named ‘Underwater Vision Profiler’ was deployed at more than 150 stations across the ice-edge. Hence, zooplankton organisms measuring between 0.7mm and few centimeters were taken in photos in their natural environment, under the ice and in ice-free waters.

Researchers from Université Laval and from the Laboratoire d’Océanographie de Villefranche-sur-Mer (France) used these images in an original statistical analysis to study how the morphology (size, color) and posture of copepods (active or resting) vary in response to ice melt and phytoplankton spring bloom. The insights from this study are useful to better understand copepod ecology in relation with sea ice dynamics, in particular because these organisms are key components for fish, birds and marine mammals in Arctic food webs.”

The “Underwater Vision Profiler” is visible in the bottom part of the Rosette in the picture on the left (photo by Pierre Coupel).

Read the full paper here: