Citation:

PANGAEA.931845

Name: Rafting assemblages on pelagic Sargassum and floating marine debris from the Sargasso Sea
Published: 2021-05-27
License: https://creativecommons.org/licenses/by/4.0/
Keywords: epibiota; floating marine debris; pollution; rafting; Sargasso Sea; Sargassum community

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Abstract:

Pelagic Sargassum and floating marine debris were collected in the Sargasso Sea (subtropical NW Atlantic) during the cruise MSM41 of the German research vessel Maria S. Merian in April 2015. Flotsam items were collected 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. All mobile epifaunal organisms were carefully washed down from the flotsam items with freshwater and retrieved in a sieve with a mesh size of 250 µm. The species were identified and the individuals counted. Each Sargassum thallus was inspected under a stereo microscope to identify the attached sessile epifaunal species. Sessile species were not quantified. The marine debris items or sub-samples thereof (in case of large bulky items) were preserved in buffered formalin-seawater solution. The sessile epifauna on the debris items was analyzed after the cruise in the laboratories of the Alfred Wegener Institute in Bremerhaven, Germany. Each Sargassum clump was blotted on tissue paper to remove adherent seawater and weighed. The sizes of the debris items were measured to calculate the surface area.

Keyword(s):

epibiota; floating marine debris; pollution; rafting; Sargasso Sea; Sargassum community

Coverage:

Median Latitude: 27.219577 * Median Longitude: -63.777864 * South-bound Latitude: 22.997217 * West-bound Longitude: -69.976867 * North-bound Latitude: 30.997733 * East-bound Longitude: -58.023883

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: * Basis: * 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: * Basis: * 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: * Basis: * Method/Device: Litter Survey (LITTER)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Gutow, Lars
2	DATE/TIME	Date/Time		Gutow, Lars	Geocode
3	Sample ID	Sample ID		Gutow, Lars
4	Station label	Station		Gutow, Lars
5	Substratum	Substratum		Gutow, Lars
6	Substratum category	Substratum categ		Gutow, Lars
7	LATITUDE	Latitude		Gutow, Lars	Geocode
8	LONGITUDE	Longitude		Gutow, Lars	Geocode
9	Taxon/taxa	Taxa		Gutow, Lars
10	Rafting species	Rafting spec	#	Gutow, Lars	Abundances only for mobile species; sessile 1 = present
11	Rafting species	Rafting spec	#/cm²	Gutow, Lars	per cm² litter
12	Rafting species	Rafting spec	#/g	Gutow, Lars	per g algae
13	Mobility	Mobility		Gutow, Lars	sessile/ mobile
14	Comment	Comment		Gutow, Lars

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

8362 data points

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