Liefmann, Stephanie; Kutti, Tina; Hennige, Sebastian; Roberts, J Murray: Clearance rate of vulnerable marine ecosystem (VME) indicator taxa from Norway, Acesta excavata, Lophelia pertusa, Geodia barretti, Phakellia ventilabrum and Stryphnus sp [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.921500 (dataset in review)
Abstract:
Clearance rate was measured for Acesta excavata, Lophelia pertusa, Geodia barretti, Phakellia ventilabrum and Stryphnus sp. under laboratory conditions at the Austevoll research station from the Institute of Marine Research, Norway between February and June 2018. The different species were given natural occurring seston in flow-through systems, as described in Strohmeier et al. (2009) under different flow speeds. Particle amount in the water entering and exciting the experimental system was measured using a particle counter system (PAMAS Partikelmess- und Analysesystem) and flow cytometry. G. barretti and Stryphnus sp. specimens were collected from Nakken reef (59°49'53" N, 5°33'44" E DMS) and Langenuen Fjord (60°00'37" N, 5°19'14" E DMS). The sponge P. ventilabrum was collected from Korsfjorden (60º9'46.8" N, 05º10'24" E DMS). L. pertusa and A. excavata were collected from the Nakken reef (59°49'53" N, 5°33'44" E DMS).
Further details:
Strohmeier, Tore; Strand, Oivind; Alunno-Bruscia, Marianne; Duinker, Arne; Cranford, Peter (2012): Variability in particle retention efficiency by the mussel Mytilus edulis. Journal of Experimental Marine Biology and Ecology, 412, 96-102, https://doi.org/10.1016/j.jembe.2011.11.006
Strohmeier, Tore; Strand, Oivind; Cranford, Peter (2009): Clearance rates of the great scallop (Pecten maximus) and blue mussel (Mytilus edulis) at low natural seston concentrations. Marine Biology, 156(9), 1781-1795, https://doi.org/10.1007/s00227-009-1212-3
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:
Median Latitude: 59.998067 * Median Longitude: 5.364630 * South-bound Latitude: 59.831389 * West-bound Longitude: 5.173333 * North-bound Latitude: 60.163000 * East-bound Longitude: 5.562222
Date/Time Start: 2017-04-17T00:00:00 * Date/Time End: 2018-01-01T00:00:00
Comment:
LSNF: Low speed normal food
MSNF: Medium speed normal food
HSNF: High speed normal food
LSHF: Low speed high food
MSHF: Medium speed high food
HSHF: High speed high food
Normal food treatments were food concentrations occurring naturally in waters from 160 m depth. High food traetments were achieved by incorporating seston gathered through a 41 µm mesh to the header tank. Water temperature varied between 9 and 10.5°C.
All organisms were weighed to obtain wet mass, then left to dry at 60ºC until dry mass was stable (2 weeks for L. pertusa, 2 days for the sponges, and 3 days for A. excavata). The trays were then burnt for 4.5 h at 450⁰C and weighed again, which gives the Ash Free Weight (AFW). To obtain organic carbon content the AFW was subtracted from the dry mass. Organic content was then standardized to mol carbon per g dry mass.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
2 datasets
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Datasets listed in this bundled publication
- Liefmann, S; Kutti, T; Hennige, S et al. (in review): Clearance rate determined by flow cytometry. https://doi.pangaea.de/10.1594/PANGAEA.921499
- Liefmann, S; Kutti, T; Hennige, S et al. (in review): Clearance rate determined using a PAMAS particle counter. https://doi.pangaea.de/10.1594/PANGAEA.921497