Franco-Santos, Rita Melo; Auel, Holger; Boersma, Maarten; De Troch, Marleen; Graeve, Martin; Meunier, Cédric Léo; Niehoff, Barbara (2019): Carbon and nitrogen contents for the larvae of the polychaete Lanice conchilega [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.900105, In supplement to: Franco-Santos, RM et al. (2019): You are not always what you eat—Fatty acid bioconversion and lipid homeostasis in the larvae of the sand mason worm Lanice conchilega. PLoS ONE, 14(6), e0218015, https://doi.org/10.1371/journal.pone.0218015
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Abstract:
The larvae of the reef-building polychaete Lanice conchilega can make up to 15% of the summer zooplankton biomass in the North Sea. Despite their importance for reef maintenance (which positively affects the benthic community), little is known about the trophic ecology of this meroplanktonic larva. Qualitative and quantitative estimates of carbon (C) transfer between trophic levels and of fatty acid (FA)-specific assimilation, biosynthesis, and bioconversion can be obtained by compound-specific stable isotope analysis of FA. The present work tested the hypothesis that the concept of fatty acid trophic markers (FATM), widely used for studies on holoplankton with intermediate to high lipid contents, is also applicable to lipid-poor organisms such as meroplanktonic larvae. The incorporation of isotopically-enriched dietary C by L. conchilega larvae was traced, and lipid assimilation did not follow FA-specific relative availabilities in the diet. Furthermore, FAs that were unavailable in the diet, such as 22:5(n-3), were recorded in L. conchilega, suggesting their bioconversion by the larvae. The results indicate that L. conchilega larvae preferentially assimilate certain FAs and regulate their FA composition (lipid homeostasis) independently of that of their diet. Their quasi-homeostatic response to dietary FA availability could imply that the concept of FATM has limited application in lipid-poor organisms such as L. conchilega larvae.
Keyword(s):
Coverage:
Latitude: 54.183333 * Longitude: 7.900000
Date/Time Start: 2016-06-06T17:10:00 * Date/Time End: 2016-06-11T21:00:00
Minimum Elevation: -10.0 m * Maximum Elevation: -10.0 m
Event(s):
HelgolandRoads_larvae_2016 (Kabeltonne) * Latitude: 54.188330 * Longitude: 7.900000 * Date/Time Start: 2016-06-06T17:10:00 * Date/Time End: 2016-06-11T21:00:00 * Elevation: -10.0 m * DEIMS ID: deims.org * Location: German Bight, North Sea
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Species | Species | Franco-Santos, Rita Melo | |||
| 2 | LATITUDE | Latitude | Franco-Santos, Rita Melo | Geocode – Sampling | ||
| 3 | LONGITUDE | Longitude | Franco-Santos, Rita Melo | Geocode – Sampling | ||
| 4 | DATE/TIME | Date/Time | Franco-Santos, Rita Melo | Geocode | ||
| 5 | Comment | Comment | Franco-Santos, Rita Melo | Sampling time within experiment | ||
| 6 | Replicate | Repl | Franco-Santos, Rita Melo | |||
| 7 | Polychaeta, larvae | Polychaeta larv | # | Franco-Santos, Rita Melo | Number of polychaete larvae in the sample | |
| 8 | Sample mass | Samp m | mg | Franco-Santos, Rita Melo | Dry mass | |
| 9 | Dry mass per larvae | DM/larv | µg/# | Franco-Santos, Rita Melo | Calculated | DM = sample dry mass / number of larvae in sample |
| 10 | Biomass as carbon | Biom C | µg | Franco-Santos, Rita Melo | Sample carbon content | |
| 11 | Biomass as carbon per larvae | Biom C larv | µg/# | Franco-Santos, Rita Melo | Calculated | Ccl = sample carbon content / number of larvae in sample |
| 12 | Biomass as nitrogen | Biom N | µg | Franco-Santos, Rita Melo | Sample nitrogen content | |
| 13 | Biomass as nitrogen per larvae | Biom N larv | µg/# | Franco-Santos, Rita Melo | Calculated | Cnl = sample nitrogen content / number of larvae in sample |
| 14 | Carbon/Nitrogen ratio | C/N | Franco-Santos, Rita Melo | Calculated | C:N = (Ccl/Molar mass C) / (Cnl/Molar mass N) |
Change history:
2023-07-06T08:25:15 – Event label was replaced. New event contains more information.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
66 data points