Fatty Acids, carotenoids, protist community and environmental parameters collected during a phytoplankton blooms in the Hudson Bay Complex ...

• Main Authors: Amiraux, Rémi, Tremblay, Jean-Éric, Babb, David, Cameron-Bergeron, Kasey, Lavaud, Johann, Matthes, Lisa, Mundy, Christopher, Peeken, Ilka
• Format: Dataset
• Language: English
• Published: Canadian Cryospheric Information Network 2022
• Subjects: Arctic Ocean; Climate change; Hudson Bay; inuit; Phytoplankton; Sea ice
• Online Access: https://dx.doi.org/10.21963/13258; https://www.polardata.ca/pdcsearch?doi_id=13258

The study was part of larger multidisciplinary investigations in the HBC aimed to understand (i) the effect of climate change on the quality of the Inuit local marine food (project BriGHT; Bridging Global Change, Inuit Health and the Transforming Arctic Ocean) as well as (ii) the contributions of climate change and hydroelectric regulation to the freshwater–marine coupling (project BaySys; The Hudson Bay System Study). Samples were collected from 7 to 12 July 2017 (BriGHT) and from 1 June to 12 July 2018 (BaySys) onboard the Canadian Coast Guard Icebreaker CCGS Amundsen using a Rosette system equipped with 12-L Niskin-type bottles and a conductivity, temperature, and depth (CTD) profiler (SBE-911, Sea-Bird Scientific, Bellevue, WA). The rosette was also equipped with a photosynthetically active radiation (PAR, 400 – 700 nm) sensor (scalar radiometer QSP-2300, Biospherical Instruments Inc., San Diego, CA) while a surface reference (QCR-2200, Biospherical Instruments Inc., San Diego, CA), measure incoming ... : The Hudson Bay complex (HBC) is home to numerous indigenous communities that have traditionally relied heavily on its marine resources. The nutritional quality and stocks of the entire HBC food web depend in large part on the phytoplankton production of bioactive molecules (long chain polyunsaturated fatty acids and carotenoids) and their transfer through trophic levels. The purpose of this dataset was thus to determine which molecules were produced during spring phytoplankton blooms in the HBC, as well as the environmental factors driving these productions. This dataset highlights the role of environmental conditions (light, temperature, salinity, sea ice) in shaping phytoplankton communities and ultimately in the production of bioactive molecules. ...