Fatty acid composition of zooplankton, fishes and sea birds from the northern Humboldt Current System during Maria S. Merian cruise MSM80
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PANGAEA
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2022
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| _version_ | 1867169454331265024 |
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| author | Schukat, Anna Massing, Jana Chiara Dorschner, Sabrina Hagen, Wilhelm Auel, Holger |
| author_facet | Schukat, Anna Massing, Jana Chiara Dorschner, Sabrina Hagen, Wilhelm Auel, Holger |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Fatty acids were analyzed by gas chromatography using a DB-FFAP column of 30 m length and 0.25 mm inner diameter and a programmable temperature vaporizer injector. Following the trophic biomarker concept, the fatty acids 16:0, 20:5(n-3) and 22:6(n-3) were classified as typical components of biomembranes. High levels of 16:1(n−7) as well as 16:4(n−1) and 18:1(n−7) were used as diatom markers and 18:4(n−3) as fatty acid marker for dinoflagellates. The fatty acid 18:1(n-9) indicates carnivorous feeding. A carnivory index was applied based on the fatty acid ratio 18:1(n−9) / [16:1(n−7) + 16:4(n−1) + 18:1(n−7) + 18:4(n−3) + 18:1(n−9)] to reflect the proportion of carnivorous compared to herbivorous feeding in an organism. Fatty acid compositions of zooplankton and fish were taxon-specific and did not depend on sampling area or depth. Most species showed a dominance of typical membrane fatty acids, e.g., 16:0, 20:5(n-3) and 22:6(n-3). The dominant copepod Calanus chilensis had a low carnivory index and elevated amounts of diatom fatty acid markers which point to a predominantly herbivorous feeding. Among the krill species, Euphausia mucronata had the lowest carnivory index compared to the other euphausiids indicating a more herbivorous feeding. The squat lobster Pleuroncodes monodon had a significantly lower carnivory ratio compared to the deep-sea decapods Gennadas sp. and Acanthephyra sp. emphasizing its different trophic role compared to other decapods. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_949562 |
| institution | PANGAEA |
| language | en |
| publishDate | 2022 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Fatty acid composition of zooplankton, fishes and sea birds from the northern Humboldt Current System during Maria S. Merian cruise MSM80 Schukat, Anna Massing, Jana Chiara Dorschner, Sabrina Hagen, Wilhelm Auel, Holger 6,9,12,15-Hexadecatetraenoic acid of total fatty acids; ACS; all-cis-4,7,10,13,16,19-Docosahexaenoic acid of total fatty acids; all-cis-5,8,11,14,17-Eicosapentaenoic acid of total fatty acids; all-cis-5,8,11,14-Eicosatetraenoic acid of total fatty acids; all-cis-8,11,14-Octadecatrienoic acid of total fatty acids; all-cis-9,12-Octadecadienoic acid of total fatty acids; cis-11-Docosenoic acid of total fatty acids; cis-11-Icosenoic acid of total fatty acids; cis-11-Octadecenoic acid of total fatty acids; cis-11-Octadecenol of total fatty alcohols; cis-15-Tetracosenoic acid of total fatty acids; cis-9-Hexadecenoic acid of total fatty acids; cis-9-Hexadecenol of total fatty alcohols; cis-9-Octadecenoic acid of total fatty acids; cis-9-Octadecenol of total fatty alcohols; Coastal Upwelling System in a Changing Ocean; CUSCO; CUSCO-1; Date/Time of event; Depth, bottom/max; Depth, top/min; Docosenol of total fatty alcohols; Eicosenol of total fatty alcohols; Event label; Gas chromatography; Hexadecanoic acid of total fatty acids; Hexadecanol of total fatty alcohols; IKMT; Individual dry mass; Isaacs-Kidd Midwater Trawl; Latitude of event; Life stage; Lipids; Longitude of event; Maria S. Merian; Microstructure Profiler; MSM80; MSM80_102-4; MSM80_13-4; MSM80_15-5; MSM80_1-6; MSM80_16-4; MSM80_18-4; MSM80_18-7; MSM80_1-9; MSM80_20-4; MSM80_30-4; MSM80_31-4; MSM80_31-7; MSM80_34-4; MSM80_40-5; MSM80_4-6; MSM80_46-15; MSM80_46-20; MSM80_46-23; MSM80_49-6; MSM80_56-5; MSM80_58-4; MSM80_67-4; MSM80_68-5; MSM80_68-6; MSM80_7-4; MSM80_74-4; MSM80_7-8; MSM80_85-3; MSM80_94-5; MSM80_95-4; MSN; MSSP; Multiple opening/closing net; Octadecanoic acid of total fatty acids; Octadecanol of total fatty alcohols; Optical Profiler, ACS; Order; Phytanic acid of total fatty acids; Sample ID; Species; Station label; Tetradecanoic acid of total fatty acids; Tetradecanol of total alcohols; Wax esters Fatty acids were analyzed by gas chromatography using a DB-FFAP column of 30 m length and 0.25 mm inner diameter and a programmable temperature vaporizer injector. Following the trophic biomarker concept, the fatty acids 16:0, 20:5(n-3) and 22:6(n-3) were classified as typical components of biomembranes. High levels of 16:1(n−7) as well as 16:4(n−1) and 18:1(n−7) were used as diatom markers and 18:4(n−3) as fatty acid marker for dinoflagellates. The fatty acid 18:1(n-9) indicates carnivorous feeding. A carnivory index was applied based on the fatty acid ratio 18:1(n−9) / [16:1(n−7) + 16:4(n−1) + 18:1(n−7) + 18:4(n−3) + 18:1(n−9)] to reflect the proportion of carnivorous compared to herbivorous feeding in an organism. Fatty acid compositions of zooplankton and fish were taxon-specific and did not depend on sampling area or depth. Most species showed a dominance of typical membrane fatty acids, e.g., 16:0, 20:5(n-3) and 22:6(n-3). The dominant copepod Calanus chilensis had a low carnivory index and elevated amounts of diatom fatty acid markers which point to a predominantly herbivorous feeding. Among the krill species, Euphausia mucronata had the lowest carnivory index compared to the other euphausiids indicating a more herbivorous feeding. The squat lobster Pleuroncodes monodon had a significantly lower carnivory ratio compared to the deep-sea decapods Gennadas sp. and Acanthephyra sp. emphasizing its different trophic role compared to other decapods. |
| title | Fatty acid composition of zooplankton, fishes and sea birds from the northern Humboldt Current System during Maria S. Merian cruise MSM80 |
| topic | 6,9,12,15-Hexadecatetraenoic acid of total fatty acids; ACS; all-cis-4,7,10,13,16,19-Docosahexaenoic acid of total fatty acids; all-cis-5,8,11,14,17-Eicosapentaenoic acid of total fatty acids; all-cis-5,8,11,14-Eicosatetraenoic acid of total fatty acids; all-cis-8,11,14-Octadecatrienoic acid of total fatty acids; all-cis-9,12-Octadecadienoic acid of total fatty acids; cis-11-Docosenoic acid of total fatty acids; cis-11-Icosenoic acid of total fatty acids; cis-11-Octadecenoic acid of total fatty acids; cis-11-Octadecenol of total fatty alcohols; cis-15-Tetracosenoic acid of total fatty acids; cis-9-Hexadecenoic acid of total fatty acids; cis-9-Hexadecenol of total fatty alcohols; cis-9-Octadecenoic acid of total fatty acids; cis-9-Octadecenol of total fatty alcohols; Coastal Upwelling System in a Changing Ocean; CUSCO; CUSCO-1; Date/Time of event; Depth, bottom/max; Depth, top/min; Docosenol of total fatty alcohols; Eicosenol of total fatty alcohols; Event label; Gas chromatography; Hexadecanoic acid of total fatty acids; Hexadecanol of total fatty alcohols; IKMT; Individual dry mass; Isaacs-Kidd Midwater Trawl; Latitude of event; Life stage; Lipids; Longitude of event; Maria S. Merian; Microstructure Profiler; MSM80; MSM80_102-4; MSM80_13-4; MSM80_15-5; MSM80_1-6; MSM80_16-4; MSM80_18-4; MSM80_18-7; MSM80_1-9; MSM80_20-4; MSM80_30-4; MSM80_31-4; MSM80_31-7; MSM80_34-4; MSM80_40-5; MSM80_4-6; MSM80_46-15; MSM80_46-20; MSM80_46-23; MSM80_49-6; MSM80_56-5; MSM80_58-4; MSM80_67-4; MSM80_68-5; MSM80_68-6; MSM80_7-4; MSM80_74-4; MSM80_7-8; MSM80_85-3; MSM80_94-5; MSM80_95-4; MSN; MSSP; Multiple opening/closing net; Octadecanoic acid of total fatty acids; Octadecanol of total fatty alcohols; Optical Profiler, ACS; Order; Phytanic acid of total fatty acids; Sample ID; Species; Station label; Tetradecanoic acid of total fatty acids; Tetradecanol of total alcohols; Wax esters |
| url | https://doi.org/10.1594/PANGAEA.949562 |