Rybakova, Elena; Kremenetskaia, Antonina; Vedenin, Andrey; Boetius, Antje; Gebruk, Andrey V (2018): OFOS photographic survey transects characteristics, megabenthic communities characteristics, seafloor algae coverage and environmental conditions during POLARSTERN cruise PS80 (ARK-XXVII/3, IceArc) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.896626, In supplement to: Rybakova, E et al. (2019): Deep-sea megabenthos communities of the Eurasian Central Arctic are influenced by ice-cover and sea-ice algal falls. PLoS ONE, 14(7), e0211009, https://doi.org/10.1371/journal.pone.0211009
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
A photographic survey was carried out during the expedition ARK-XXVII/3 to the Nansen and Amundsen basins. The seafloor was photographed using a towed Ocean Floor Observation System (OFOS). Nine transects were performed: four in the Nansen Basin between 83-84°N and 18-110°E at depths 3571-4066 m, and five in the Amundsen Basin between 83-89°N and 56-131°E at depths 4041-4384 m. All images were analysed and stored using the image analysis program and database BIIGLE (www.BIIGLE.de). The laser points were used for calculation of the seafloor surface area on images. Visible megafauna was counted and identified to the lowest possible taxonomic level. The number of different taxa on each image was converted to individuals per m² (density). Total megafauna density (±standard deviation) was calculated for each transect. The mean taxa biomass per m² and the total megafauna biomass per m² were roughly estimated for each transect. The mean biomass (preserved wet weight) was calculated based on the wet weight of preserved individuals sampled by trawls. For taxa with insufficient trawl data the biomass was estimated using the biomass data of congeneric taxa or taxa with similar body shape; in some cases such taxa were excluded from analyses. The coverage of seafloor by algae aggregations and their remains was calculated based on sixty images at each transect using ImageJ software. Images for this analysis were chosen with equal spatial intervals depending on the total number of images within a transect. Several environmental parameters were measured at the ice stations.
Further details:
Bienhold, Christina; Bakker, Karel; Felden, Janine; Boetius, Antje: Nutriens analysis from the central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 from August-September 2012. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.863128 (Further parameters: PO4/sed (µmol/l), Si/sed (µmol/l), NO2/sed (µmol/l), NO3/sed (µmol/l))
Bienhold, Christina; Boetius, Antje (2015): Chlorophyll pigments of the central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 from August-September 2012. PANGAEA, https://doi.org/10.1594/PANGAEA.849043 (Further parameters: Chl a/sed (µg/сm3))
Bienhold, Christina; Boetius, Antje (2015): Porosity in sediment cores from the central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 from August-September 2012. PANGAEA, https://doi.org/10.1594/PANGAEA.849054 (Further parameters: Porosity (%))
Bienhold, Christina; Boetius, Antje: Dissolved organic carbon and dissolved nitrogen from the central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 from August-September 2012. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.863133 (Further parameters: DOC/sed (mmol/l), TDN/sed (mmol/l))
Bienhold, Christina; Boetius, Antje: Prokaryotes abundance from the central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 from August-September 2012. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.863135 (Further parameters: Bacterial cell abundance (109#/cm3))
Bienhold, Christina; Boetius, Antje: Total carbon and total organic carbon from the central Arctic Ocean (MUC stations) during POLARSTERN cruise ARK-XXVII/3 from August-September 2012. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.863148 (Further parameters: TOC (%))
Boetius, Antje; Albrecht, Sebastian; Bakker, Karel; Bienhold, Christina; Felden, Janine; Fernández-Méndez, Mar; Hendricks, Stefan; Katlein, Christian; Lalande, Catherine; Krumpen, Thomas; Nicolaus, Marcel; Peeken, Ilka; Rabe, Benjamin; Rogacheva, Antonina; Rybakova, Elena; Somavilla Cabrillo, Raquel; Wenzhöfer, Frank; ARK-XXVII/3 Shipboard Scientific Party (2013): Distribution of algal aggregates and characteristics of sea ice stations investigated druing POLARSTERN cruise ARK-XXVII/3 (IceArc). PANGAEA, https://doi.org/10.1594/PANGAEA.803431 (Further parameters: Sea ice coverage (%), Ice thickness (m))
Coverage:
Median Latitude: 84.622323 * Median Longitude: 81.916759 * South-bound Latitude: 81.889380 * West-bound Longitude: 17.706980 * North-bound Latitude: 88.780650 * East-bound Longitude: 130.924830
Date/Time Start: 2012-08-10T07:27:00 * Date/Time End: 2012-09-29T04:02:00
Minimum Elevation: -4384.3 m * Maximum Elevation: -3468.7 m
Event(s):
PS80/228-1 * Latitude Start: 84.008480 * Longitude Start: 31.364720 * Latitude End: 83.997880 * Longitude End: 31.426070 * Date/Time Start: 2012-08-10T07:27:00 * Date/Time End: 2012-08-10T11:45:00 * Elevation Start: -4010.1 m * Elevation End: -4011.3 m * Location: Arctic Ocean * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: Ocean Floor Observation System (OFOS) * Comment: Position sensor: USBL Ixsea Posidonia
PS80/239-1 * Latitude Start: 83.978030 * Longitude Start: 78.007020 * Latitude End: 83.968580 * Longitude End: 77.556920 * Date/Time Start: 2012-08-14T15:17:00 * Date/Time End: 2012-08-14T20:32:00 * Elevation Start: -3477.3 m * Elevation End: -3468.7 m * Location: Arctic Ocean * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: Ocean Floor Observation System (OFOS) * Comment: 3479 m, GE 52.2; Position sensor: USBL Ixsea Posidonia
PS80/257-1 * Latitude Start: 82.686020 * Longitude Start: 109.597770 * Latitude End: 82.727730 * Longitude End: 109.606080 * Date/Time Start: 2012-08-20T10:34:00 * Date/Time End: 2012-08-20T14:30:00 * Elevation Start: -3571.6 m * Elevation End: -3575.3 m * Location: Arctic Ocean * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: Ocean Floor Observation System (OFOS) * Comment: BoSi bei SL=3582m; Position sensor: USBL Ixsea Posidonia
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Rybakova, Elena | |||
| 2 | Date/Time of event | Date/Time | Rybakova, Elena | |||
| 3 | Date/Time of event 2 | Date/Time 2 | Rybakova, Elena | |||
| 4 | Latitude of event | Latitude | Rybakova, Elena | |||
| 5 | Latitude of event 2 | Latitude 2 | Rybakova, Elena | |||
| 6 | Longitude of event | Longitude | Rybakova, Elena | |||
| 7 | Longitude of event 2 | Longitude 2 | Rybakova, Elena | |||
| 8 | Elevation of event | Elevation | m | Rybakova, Elena | ||
| 9 | Elevation of event 2 | Elevation 2 | m | Rybakova, Elena | ||
| 10 | Ice-station | Ice-station | Rybakova, Elena | |||
| 11 | Number of photos | Photo | # | Rybakova, Elena | Images analysed | |
| 12 | Area | Area | m2 | Rybakova, Elena | Total analysed area covered by images | |
| 13 | Length of transect | Length | m | Rybakova, Elena | ||
| 14 | Megafauna abundance | Megaf | #/m2 | Rybakova, Elena | Total density of megafauna | |
| 15 | Megafauna, standard deviation | Megafauna std dev | ± | Rybakova, Elena | Total density of megafauna, std. dev. | |
| 16 | Megafauna, biomass, wet mass | Megaf biom wm | g/m2 | Rybakova, Elena | ||
| 17 | Algal cover | Algal cov | % | Rybakova, Elena | At seafloor |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
72 data points