Fatty acid composition (µg/ml) of sea ice algal communities in Hudson Bay (Southampton Island)

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Dettagli Bibliografici
Autori principali:	Graeve, Martin, Leu, Eva, Fahl, Kirsten, Campbell, Karley, Brown, Thomas A, Welteke, Nahid, Adrian-Schütte, Valeria
Natura:	Dataset Open Access
Lingua:	en
Pubblicazione:	PANGAEA 2025
Soggetti:	10-CH3A-core-2,3-090519; 11-CH3B-core-1,3-090519; 12-CH3C-core-10,11-090519; 13-methyl-Tetradecanoic acid; 16-CH4B-core-1,2-130519; 17-CH4C-core-9,10-130519; 18-CH4D-core-1,2-130519; 1-CH1C-core-6,9,11-040519; 20-CH5A-core-3,4-160519; 21-CH5B-core-1,2-160519; 22-CH5C-core-5,6-160519; 23-CH5D-core-1,2-160519; 24-CH5F-core-3,4-160519; 25-CH6A-core-3,4-190519; 28-CH6D-core-1,2-190519; 2-CH1F-core-2-040519; 30-CH7A-core-3,4-230519; 31-CH7B-core-1,2-230519; 32-CH7C-core-9,10-230519; 33-CH7D-core-1,2-230519; 34-CH7F-core-3,4-230519; 35-CH8A-core-3,4-260519; 36-CH8B-core-1,2-260519; 37-CH8C-core-5,6-260519; 38-CH8D-core-1,2-260519; 39-CH8F-core-3,4-260519; 3-CH2A-core-2,3-070519; 40-CH9A-core-3,4-290519; 41-CH9B-core-1,2-290519; 42-CH9C-core-6,7-290519; 43-CH9D-core-1,2-290519; 44-CH9F-core-3,4-290519; 45-CH10A-core-3,4-010619; 46-CH10B-core-1,2-010619; 47-CH10C-core-9,10-010619; 48-CH10D-core-1,2-010619; 6,9,12,15-Hexadecatetraenoic acid; 6,9,12,15-Octadecatetraenoic acid; 6,9,12-Hexadecatrienoic acid; 6,9,12-Octadecatrienoic acid; 6-CH2C-core-6,7-060519; 7-CH2D-core-2,3-060519; 9,12,15-Octadecatrienoic acid; 9,12-Hexadecadienoic acid; all-cis-4,7,10,13,16,19-Docosahexaenoic acid; all-cis-5,8,11,14,17-Eicosapentaenoic acid; all-cis-9,12-Octadecadienoic acid; bulk and compound-specific isotope analysis; CHOOSE; cis-11-Hexadecenoic acid; cis-11-Octadecenoic acid; cis-9-Hexadecenoic acid; cis-9-Octadecenoic acid; Coral Harbour Oceanographic Observation and Sea ice Experiments; Cycle; DATE/TIME; Depth, bathymetric; Depth, bottom/max; DEPTH, ice/snow; Depth, top/min; Event label; Gas chromatograph, Agilent, 6890; coupled with Isotope ratio mass spectrometer, Thermo, Delta V Plus; HBI; Hexadecanoic acid; IC; Ice corer; ice cores; IP25; LATITUDE; lipid biomarker; LONGITUDE; Octadecanoic acid; Pentadecanoic acid; Polyunsaturated fatty acids; Polyunsaturated fatty acids, C16; Sample ID; Sampling/drilling ice; Sea ice thickness; Site; Snow thickness; Tetradecanoic acid; trophic markers; Water volume, filtered
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_version_	1867172211495796736
author	Graeve, Martin Leu, Eva Fahl, Kirsten Campbell, Karley Brown, Thomas A Welteke, Nahid Adrian-Schütte, Valeria
author_facet	Graeve, Martin Leu, Eva Fahl, Kirsten Campbell, Karley Brown, Thomas A Welteke, Nahid Adrian-Schütte, Valeria
collection	Datos científicos de ciencias marinas y ambientales
contents	A spring bloom of algae in or underneath sea ice provides a concentrated food source for aquatic grazers and contributes significantly to marine primary production in many regions of the Arctic. Various types of trophic markers are commonly used to analyze food web structure, based on numerous assumptions about how sea ice algae differ biochemically from phytoplankton. Changes associated with polar amplification of global warming have the potential to affect the phenology, taxonomic composition, productivity, and nutritional value of sea ice algal blooms, which are usually dominated by diatom species. Such changes are likely to have far-reaching effects on trophic interactions and carbon cycling in the ocean. The production of lipids and stable isotope biomarkers by marine algae can vary significantly depending on environmental factors such as snow depth, ice thickness, nutrient availability, and water depth. For example, concentrations of polyunsaturated fatty acids (PUFAs) in ice algae decreased with decreasing nutrient concentrations, and 16:0/16:1 (n-7) fatty acids were highly enriched in 13C in our 2019 study in northwestern Hudson Bay, Southampton Island (possibly as a result of DIC limitation). Data on stable isotope values of fatty acids in ice algae are particularly scarce, so we provide an important information base for future Bayesian isotope mixing models.
format	Dataset Open Access
id	pangaea_https___doi_org_10_1594_PANGAEA_986965
institution	PANGAEA
language	en
publishDate	2025
publisher	PANGAEA
record_format	pangaea
spellingShingle	Fatty acid composition (µg/ml) of sea ice algal communities in Hudson Bay (Southampton Island) Graeve, Martin Leu, Eva Fahl, Kirsten Campbell, Karley Brown, Thomas A Welteke, Nahid Adrian-Schütte, Valeria 10-CH3A-core-2,3-090519; 11-CH3B-core-1,3-090519; 12-CH3C-core-10,11-090519; 13-methyl-Tetradecanoic acid; 16-CH4B-core-1,2-130519; 17-CH4C-core-9,10-130519; 18-CH4D-core-1,2-130519; 1-CH1C-core-6,9,11-040519; 20-CH5A-core-3,4-160519; 21-CH5B-core-1,2-160519; 22-CH5C-core-5,6-160519; 23-CH5D-core-1,2-160519; 24-CH5F-core-3,4-160519; 25-CH6A-core-3,4-190519; 28-CH6D-core-1,2-190519; 2-CH1F-core-2-040519; 30-CH7A-core-3,4-230519; 31-CH7B-core-1,2-230519; 32-CH7C-core-9,10-230519; 33-CH7D-core-1,2-230519; 34-CH7F-core-3,4-230519; 35-CH8A-core-3,4-260519; 36-CH8B-core-1,2-260519; 37-CH8C-core-5,6-260519; 38-CH8D-core-1,2-260519; 39-CH8F-core-3,4-260519; 3-CH2A-core-2,3-070519; 40-CH9A-core-3,4-290519; 41-CH9B-core-1,2-290519; 42-CH9C-core-6,7-290519; 43-CH9D-core-1,2-290519; 44-CH9F-core-3,4-290519; 45-CH10A-core-3,4-010619; 46-CH10B-core-1,2-010619; 47-CH10C-core-9,10-010619; 48-CH10D-core-1,2-010619; 6,9,12,15-Hexadecatetraenoic acid; 6,9,12,15-Octadecatetraenoic acid; 6,9,12-Hexadecatrienoic acid; 6,9,12-Octadecatrienoic acid; 6-CH2C-core-6,7-060519; 7-CH2D-core-2,3-060519; 9,12,15-Octadecatrienoic acid; 9,12-Hexadecadienoic acid; all-cis-4,7,10,13,16,19-Docosahexaenoic acid; all-cis-5,8,11,14,17-Eicosapentaenoic acid; all-cis-9,12-Octadecadienoic acid; bulk and compound-specific isotope analysis; CHOOSE; cis-11-Hexadecenoic acid; cis-11-Octadecenoic acid; cis-9-Hexadecenoic acid; cis-9-Octadecenoic acid; Coral Harbour Oceanographic Observation and Sea ice Experiments; Cycle; DATE/TIME; Depth, bathymetric; Depth, bottom/max; DEPTH, ice/snow; Depth, top/min; Event label; Gas chromatograph, Agilent, 6890; coupled with Isotope ratio mass spectrometer, Thermo, Delta V Plus; HBI; Hexadecanoic acid; IC; Ice corer; ice cores; IP25; LATITUDE; lipid biomarker; LONGITUDE; Octadecanoic acid; Pentadecanoic acid; Polyunsaturated fatty acids; Polyunsaturated fatty acids, C16; Sample ID; Sampling/drilling ice; Sea ice thickness; Site; Snow thickness; Tetradecanoic acid; trophic markers; Water volume, filtered A spring bloom of algae in or underneath sea ice provides a concentrated food source for aquatic grazers and contributes significantly to marine primary production in many regions of the Arctic. Various types of trophic markers are commonly used to analyze food web structure, based on numerous assumptions about how sea ice algae differ biochemically from phytoplankton. Changes associated with polar amplification of global warming have the potential to affect the phenology, taxonomic composition, productivity, and nutritional value of sea ice algal blooms, which are usually dominated by diatom species. Such changes are likely to have far-reaching effects on trophic interactions and carbon cycling in the ocean. The production of lipids and stable isotope biomarkers by marine algae can vary significantly depending on environmental factors such as snow depth, ice thickness, nutrient availability, and water depth. For example, concentrations of polyunsaturated fatty acids (PUFAs) in ice algae decreased with decreasing nutrient concentrations, and 16:0/16:1 (n-7) fatty acids were highly enriched in 13C in our 2019 study in northwestern Hudson Bay, Southampton Island (possibly as a result of DIC limitation). Data on stable isotope values of fatty acids in ice algae are particularly scarce, so we provide an important information base for future Bayesian isotope mixing models.
title	Fatty acid composition (µg/ml) of sea ice algal communities in Hudson Bay (Southampton Island)
topic	10-CH3A-core-2,3-090519; 11-CH3B-core-1,3-090519; 12-CH3C-core-10,11-090519; 13-methyl-Tetradecanoic acid; 16-CH4B-core-1,2-130519; 17-CH4C-core-9,10-130519; 18-CH4D-core-1,2-130519; 1-CH1C-core-6,9,11-040519; 20-CH5A-core-3,4-160519; 21-CH5B-core-1,2-160519; 22-CH5C-core-5,6-160519; 23-CH5D-core-1,2-160519; 24-CH5F-core-3,4-160519; 25-CH6A-core-3,4-190519; 28-CH6D-core-1,2-190519; 2-CH1F-core-2-040519; 30-CH7A-core-3,4-230519; 31-CH7B-core-1,2-230519; 32-CH7C-core-9,10-230519; 33-CH7D-core-1,2-230519; 34-CH7F-core-3,4-230519; 35-CH8A-core-3,4-260519; 36-CH8B-core-1,2-260519; 37-CH8C-core-5,6-260519; 38-CH8D-core-1,2-260519; 39-CH8F-core-3,4-260519; 3-CH2A-core-2,3-070519; 40-CH9A-core-3,4-290519; 41-CH9B-core-1,2-290519; 42-CH9C-core-6,7-290519; 43-CH9D-core-1,2-290519; 44-CH9F-core-3,4-290519; 45-CH10A-core-3,4-010619; 46-CH10B-core-1,2-010619; 47-CH10C-core-9,10-010619; 48-CH10D-core-1,2-010619; 6,9,12,15-Hexadecatetraenoic acid; 6,9,12,15-Octadecatetraenoic acid; 6,9,12-Hexadecatrienoic acid; 6,9,12-Octadecatrienoic acid; 6-CH2C-core-6,7-060519; 7-CH2D-core-2,3-060519; 9,12,15-Octadecatrienoic acid; 9,12-Hexadecadienoic acid; all-cis-4,7,10,13,16,19-Docosahexaenoic acid; all-cis-5,8,11,14,17-Eicosapentaenoic acid; all-cis-9,12-Octadecadienoic acid; bulk and compound-specific isotope analysis; CHOOSE; cis-11-Hexadecenoic acid; cis-11-Octadecenoic acid; cis-9-Hexadecenoic acid; cis-9-Octadecenoic acid; Coral Harbour Oceanographic Observation and Sea ice Experiments; Cycle; DATE/TIME; Depth, bathymetric; Depth, bottom/max; DEPTH, ice/snow; Depth, top/min; Event label; Gas chromatograph, Agilent, 6890; coupled with Isotope ratio mass spectrometer, Thermo, Delta V Plus; HBI; Hexadecanoic acid; IC; Ice corer; ice cores; IP25; LATITUDE; lipid biomarker; LONGITUDE; Octadecanoic acid; Pentadecanoic acid; Polyunsaturated fatty acids; Polyunsaturated fatty acids, C16; Sample ID; Sampling/drilling ice; Sea ice thickness; Site; Snow thickness; Tetradecanoic acid; trophic markers; Water volume, filtered
url	https://doi.org/10.1594/PANGAEA.986965

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