(Table 2) Fatty acid composition of polychaetes sampled during POLARSTERN cruise ANT-XXIV/2


The fatty acid (FA) composition of representatives belonging to 18 polychaete families from the Southern Ocean shelf and deep sea (600 to 5337 m) was analysed in order to identify trophic biomarkers and elucidate possible feeding preferences. Total FA content was relatively low with few exceptions and ranged from 1.0 to 11.6% of total body dry weight. The most prominent FA found were 20:5(n-3), 16:0, 22:6(n-3), 18:1(n-7), 20:4(n-6), 18:0, 20:1(n-11) and 18:1(n-9). For some polychaete families and species FA profiles indicated selective feeding on certain dietary components, like freshly deposited diatom remains (e.g., Spionidae, Fauveliopsidae and Flabelligeridae) or foraminiferans (e.g., Euphrosinidae, Nephtyidae and Syllidae). Feeding patterns were relatively consistent within families at the deep stations, while the FA composition differed between the deep and the shelf stations within the same family. Fatty alcohols, indicative of wax ester storage, were found in almost all families (in proportions of 0.0 to 29.3% of total FA and fatty alcohols). The development of this long-term storage mechanism of energy reserves possibly displays an evolutionary strategy.

Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150

Supplement to: Würzberg, Laura; Peters, Janna; Schüller, Myriam; Brandt, Angelika (2011): Diet insights of deep-sea polychaetes derived from fatty acid analyses. Deep Sea Research Part II: Topical Studies in Oceanography, 58(1-2), 153-162

DOI https://doi.org/10.1594/PANGAEA.842442
Related Identifier IsSupplementTo https://doi.org/10.1016/j.dsr2.2010.10.014
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.842442
Creator Würzberg, Laura; Peters, Janna; Schüller, Myriam; Brandt, Angelika ORCID logo
Publisher PANGAEA
Publication Year 2011
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 5472008 https://gepris.dfg.de/gepris/projekt/5472008 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 955 data points
Discipline Earth System Research
Spatial Coverage (-8.030W, -70.030S, 2.884E, -52.026N); Weddell Sea; South Atlantic Ocean
Temporal Coverage Begin 2007-12-31T01:47:00Z
Temporal Coverage End 2008-01-27T06:44:00Z