Liefmann, Stephanie; Carreiro-Silva, Marina; Hennige, Sebastian; Maier, Sandra; Roberts, J Murray: Food incorporation of vulnerable marine ecosystem (VME) indicator taxa from the Azores, Viminella flagellum and Dentomuricea meteor under competition [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.921476 (dataset in review)
Abstract:
Viminella flagellum and Dentomuricea meteor specimens were collected from scientific longline fishing in the Condor Seamount (38˚08′N, 29˚05′W). Food incorporation of two co-occurring species Viminella flagellum and Dentomuricea meteor was measured under laboratory conditions by tissue incorporation of stable isotopes 13C and 15N. Specimens were kept in 35 l flow-through aquaria. Experiments lasted for 6 days, with feeding incubations lasting for 12 hours, while the feeding episodes happened, the flow-through system was closed creating a recirculating system where water currents were created by a rotating engine. Food incorporation was measured under two different flow speeds (2 and 4 cm/s) and under two different conditions: competition (the two species together) and control conditions (each species tested individually).
Further details:
Hayes, John M (2004): An introduction to isotopic calculations. Woods Hole Oceanographic Institution, Woods Hole, MA, 2543, 10 pp., https://www.whoi.edu/cms/files/jhayes/2005/9/IsoCalcs30Sept04_5183.pdf
Project(s):
Funding:
Horizon 2020 (H2020), grant/award no. 678760: A Trans-Atlantic assessment and deep-water ecosystem-based spatial management plan for Europe
Coverage:
Latitude: 38.133333 * Longitude: -29.083333
Date/Time Start: 2019-07-30T00:00:00 * Date/Time End: 2019-09-17T00:00:00
Event(s):
COND-05 * Latitude: 38.133333 * Longitude: -29.083333 * Location: Condor Seamounts * Method/Device: Longline deployment (LLDEP)
Comment:
4 cm/s: Both species present in the aquaria, flow speed 4 cm/s
2 cm/s: Both species present in the aquaria at, flow speed 2 cm/s
C 4 cm/s: Viminella flagellum alone, flow speed 4 cm/s
C 4 cm/s: Dentomuricea meteor alone, flow speed 4 cm/s
C 2 cm/s: Viminella flagellum alone, flow speed 2 cm/s
C 2 cm/s: Dentomuricea meteor alone, flow speed 2 cm/s
Measurements taken in "open system" refer to the measurements taken prior to shutting down the flow-through systems to create the experiemtal conditions. Measurement taken under "closed system" correspond to measurements taken when the incubation time was over.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Species | Species | Liefmann, Stephanie | |||
| 2 | Uniform resource locator/link to reference | URL ref | Liefmann, Stephanie | Reference in WoRMS | ||
| 3 | Experimental treatment | Exp treat | Liefmann, Stephanie | |||
| 4 | DATE/TIME | Date/Time | Liefmann, Stephanie | Geocode | ||
| 5 | pH | pH | Liefmann, Stephanie | Open system (mean) | ||
| 6 | pH | pH | Liefmann, Stephanie | Closed system (mean) | ||
| 7 | Temperature, water | Temp | °C | Liefmann, Stephanie | Open system (mean) | |
| 8 | Temperature, water | Temp | °C | Liefmann, Stephanie | Closed system (mean) | |
| 9 | Dry mass | Dry m | g | Liefmann, Stephanie | Weighted | |
| 10 | Skeleton, dry mass | Skeleton dm | g | Liefmann, Stephanie | Weighted | |
| 11 | Tissue, dry mass | Tissue dm | g | Liefmann, Stephanie | Weighted | |
| 12 | δ13C | δ13C | ‰ PDB | Liefmann, Stephanie | Elemental Analysis - Isotopic Ratio Mass Spectrometer HS20-22E, SERCON (EA-IRMS) | |
| 13 | δ15N | δ15N | ‰ air | Liefmann, Stephanie | Elemental Analysis - Isotopic Ratio Mass Spectrometer HS20-22E, SERCON (EA-IRMS) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
394 data points