Gutow, Lars; Petersen, Imke; Giménez, Luis; Thiel, Martin; Rivedeneira, Marcelo M (2021): Characteristics of flotsam samples from Sargasso Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.931831, In: Gutow, L et al. (2021): Rafting communities on pelagic Sargassum and floating marine debris in the Sargasso Sea [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.931845
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Abstract:
Clumps of pelagic Sargassum as well as floating marine debris were collected during cruise MSM41 of the German research vessel Maria S. Merian in the Sargasso Sea (subtropical NW Atlantic) in April 2015. Samples were taken with a dip net (mesh size: 1 mm) from the rescue boat of the research vessel at 19 stations distributed in coordination with the other sampling activities of the cruise. Few, mostly larger, debris samples were taken from aboard the research vessel using a dip net with a mesh size of 9 cm. The exact sampling position of each floating item was recorded by a handheld GPS. In total, 42 Sargassum samples and 41 samples of marine debris were collected. On board the vessel, the Sargassum samples were analyzed for their species composition (Sargassum natans, Sargassum fluitans, indeterminable small fragments). Each fraction was weighed (wet weight) after the algae had been blotted on tissue paper to remove adherent seawater. The type of each debris sample was determined and the sizes of the debris samples were measured. Small objects were preserved in buffered seawater-formalin solution for later analysis of the associated biota. Small sub-samples have been taken from samples, which were too large to be preserved in total. Polymer compositions of the plastic debris samples were analyzed by Near Infrared Spectroscopy.
Coverage:
Median Latitude: 27.615241 * Median Longitude: -64.146542 * South-bound Latitude: 22.997000 * West-bound Longitude: -69.977000 * North-bound Latitude: 31.223000 * East-bound Longitude: -58.024000
Date/Time Start: 2015-04-04T00:00:00 * Date/Time End: 2015-04-25T00:00:00
Event(s):
MSM41_litter-A * Latitude Start: 27.920400 * Longitude Start: -69.976867 * Latitude End: 28.923517 * Longitude End: -69.850517 * Date/Time Start: 2015-04-04T00:00:00 * Date/Time End: 2015-04-04T00:00:00 * Location: South Atlantic Ocean * Campaign: MSM41 * Basis: Maria S. Merian * Method/Device: Litter Survey (LITTER)
MSM41_litter-B * Latitude Start: 25.786083 * Longitude Start: -69.962983 * Latitude End: 25.786967 * Longitude End: -69.961883 * Date/Time Start: 2015-04-05T00:00:00 * Date/Time End: 2015-04-05T00:00:00 * Location: South Atlantic Ocean * Campaign: MSM41 * Basis: Maria S. Merian * Method/Device: Litter Survey (LITTER)
MSM41_litter-C * Latitude Start: 25.997350 * Longitude Start: -67.007483 * Latitude End: 25.998967 * Longitude End: -67.005217 * Date/Time Start: 2015-04-08T00:00:00 * Date/Time End: 2015-04-08T00:00:00 * Location: South Atlantic Ocean * Campaign: MSM41 * Basis: Maria S. Merian * Method/Device: Litter Survey (LITTER)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Gutow, Lars | |||
| 2 | Sample ID | Sample ID | Gutow, Lars | |||
| 3 | Station label | Station | Gutow, Lars | |||
| 4 | DATE/TIME | Date/Time | Gutow, Lars | Geocode | ||
| 5 | LATITUDE | Latitude | Gutow, Lars | Geocode | ||
| 6 | LONGITUDE | Longitude | Gutow, Lars | Geocode | ||
| 7 | Substrate type | Substrate | Gutow, Lars | |||
| 8 | Substratum | Substratum | Gutow, Lars | |||
| 9 | Sargassum natans, wet mass | S. natans wm | g | Gutow, Lars | ||
| 10 | Sargassum fluitans, wet mass | S. fluitans wm | g | Gutow, Lars | ||
| 11 | Sargassum indeterminata, wet mass | Sargassum indet wm | g | Gutow, Lars | fragments | |
| 12 | Sargassum, wet mass | Sargassum wm | g | Gutow, Lars | total | |
| 13 | Sargassum natans | S. natans | % | Gutow, Lars | ||
| 14 | Sargassum fluitans | S. fluitans | % | Gutow, Lars | ||
| 15 | Sargassum indeterminata | S. indeterminata | % | Gutow, Lars | fragments | |
| 16 | Polymer | Polymer | Gutow, Lars | Near infrared spectroscopy | polymer type | |
| 17 | Surface area | SA | cm2 | Gutow, Lars | debris item (total = whole object) | |
| 18 | Surface area | SA | cm2 | Gutow, Lars | preserved sub-sample | |
| 19 | Surface area | SA | cm2 | Gutow, Lars | analysed | |
| 20 | Sample mass | Samp m | g | Gutow, Lars | plastic weight (analysed) | |
| 21 | Comment | Comment | Gutow, Lars | photo of plastic sample (Y= yes, N= no) | ||
| 22 | Image | IMAGE | Gutow, Lars | |||
| 23 | Comment | Comment | Gutow, Lars |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
855 data points