Dataset landingpage: MarineBasis Nuuk - Benthic vegetation - Ascophyllum nodosum segment biomass

Dataset specification

  • Title: MarineBasis Nuuk - Benthic vegetation - Ascophyllum nodosum segment biomass
  • Description: Nuuk basis monitoring of macroalgae and fauna – population dynamics of knotted wrack (Ascophyllum nodosum). Ascophyllum nodosum segment biomass. The dataset consist of annual (2012-2021) sampling of 20 Ascophyllum nodosum tips (actively growing, light brown), randomly sampled in the population in each of the tidal zones (upper, mid, lower) for the purpose of measuring annual tip growth. The tips were cut below the 3rd bladder and then cut into seperate segments/tip-sections (Outer tip incl. 1st bladder = year 0, below 1st bladder incl. 2nd bladder = year 1, below 2nd bladder incl. 3rd bladder = year 2). Each segment was dried at 60 degrees Celcius and weighed. From 2015, additional sampling of tips in the mid tidal zone from populations in two other sites in Kobbefjord were also included. Benthic vegetation:Benthic vegetation MarineBasis Nuuk:The MarineBasis programme collects physical, chemical and biological data from the Greenland coastal zone. Work is focused around three fjord systems, all influenced by glaciers connected to the Greenland Ice Sheet.
  • DOI: 10.17897/KEMY-JJ24 - https://doi.org/10.17897/KEMY-JJ24
  • Location/site: Kobbefjord - W Greenland - -51.38, 64.13 (lon-lat wgs84)
  • Date span of the dataset: 2012-08-22 - 2021-08-30

Data originator, license and how to download the dataset

The dataset is a product of the Greenland Ecosystem Monitoring program (GEM): https://grid.ac/institutes/grid.507580.f. It is free and open data, licensed with terms of use under the Creative Commons CC-BY-SA license: https://creativecommons.org/licenses/by-sa/4.0/ When downloading you will automatically get a terms of use document, describing how to cite the data and other important information.

Download the dataset via this link (registration needed): http://data.g-e-m.dk/log-in/data-tables?doi=10.17897/KEMY-JJ24

Variables measured / columns in dataset

ID Name Unit Data Type Description
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=Date Date YYYY-MM-DD Date Sampling date
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=Area Area Text Text Sampling area
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=Year Year yyyy Number Year of sampling
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=Site Site Text Text Sampling site
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=Latitude Latitude Number Number Latitude WGS84, DD
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=Longitude Longitude Number Number Longitude WGS84, DD
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=Tidalzone Tidalzone Text Text Tidal zone
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=Segment+(year) Segment (year) Number Number Tip-section: Outer tip incl. 1st bladder = year 0, below 1st bladder incl. 2nd bladder = year 1, below 2nd bladder incl. 3rd bladder = year 2
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=Avg+(g+dw) Avg (g dw) Number Number Average weight (g dw) - dried at 60 degrees Celcius
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=Std+(g+dw) Std (g dw) Number Number Standard deviation (g dw)
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=N N Number Number Number of segments/tip-sections
http://data.g-e-m.dk/datasets?doi=10.17897/KEMY-JJ24&column=SE+(g+dw) SE (g dw) Number Number Standard error (g dw)