The following images represent samples collected from the St. Pierre Bank on Newfoundland's South Coast during an oceanographic survey undertaken by the Canadian Department of Fisheries and Oceans. From April 6 to 23, 2017, the FlowCam traveled aboard the Coast Guard vessel CCGS Teleost imaging samples collected along the Grand Bank and northeast Newfoundland Shelf.
The Canadian Department of Fisheries and Oceans is in the process of an extensive analysis of basic ocean community structure in a survey across the Grand Bank and northeast Newfoundland Shelf.
These images show a sampling of the variety of plankton taxa encountered. The samples were comprised of primarily diatoms and dinoflagellates, with some microzooplankton such as copepod eggs and nauplii. Gary Maillet, Biological Oceanographer from the Canadian Department of Fisheries and Oceans, noted interesting changes in community composition occurring along transitions between various water masses and shelf-slope bathmetry.
Samples were collected at approximately 75 stations using conventional CTD profilers equipped with a variety of sensors to record, temperature, salinity, pH, CDOM, chlorophyll fluorescence, dissolved oxygen, and particulate matter. Additionally, an extensive array of bio-geochemical samples was collected and will be analyzed for carbonate and nutrient chemistry to evaluate saturation states of calcium carbonate and ocean acidification parameters.
The basic method used to collect plankton during the survey consisted of a 20µm plankton net profiled vertically in the upper 30 meters of the water column and sieved at 250µm to remove larger particles. An aliquot was then prepared and processed with the FlowCam 8400 using the 300µm FOV flow cell.
The CCGS Teleost returned to harbor on April 26. It will be an ongoing project to classify the samples collected from each of the 75 stations. Learn how the Canadian Department of Fisheries and Oceans will automate the sorting, identification, and analysis of the algae collected on their voyage. Check out our VisualSpreadsheet software.
Learn about the instrument the Canadian Department of Fisheries and Oceans used on the CCGS Teleost. Download the free FlowCam 8000 Aquatics Brochure.