de.pangaea.dataset963565 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-04-30T21:19:10Z https://doi.pangaea.de/10.1594/PANGAEA.963565 <gco:CharacterString>Quantitative macroalgae survey and kelp morphometry data collected at Hansneset, Kongsfjorden, Spitsbergen in 2021</gco:CharacterString> 2026-01-05T08:26:16 publication https://doi.org/10.1594/PANGAEA.963565 Düsedau, Luisa
luisa.duesedau@awi.de
https://orcid.org/0000-0002-2750-6437 information author Fredriksen, Stein
stein.fredriksen@ibv.uio.no
author Brand, Markus
Markus.Brand@awi.de
https://orcid.org/0000-0003-4768-1889 information author Fischer, Philipp
philipp.fischer@awi.de
https://orcid.org/0000-0002-3357-5420 information author Karsten, Ulf
ulf.karsten@uni-rostock.de
https://orcid.org/0000-0002-2955-0757 information author Bischof, Kai
kai.bischof@uni-bremen.de
https://orcid.org/0000-0002-4497-1920 information author Savoie, Amanda
asavoie@nature.ca
author Bartsch, Inka
inka.bartsch@awi.de
https://orcid.org/0000-0001-7609-2149 information author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital Surveys were performed for macroalgae fresh biomass, dry biomass, leaf area index and kelp morphometry at Hansneset, Blomstrand in Kongsfjorden, Svalbard, from the infralittoral fringe down to 15 m depth in June - August 2021. This dataset is part of a time series currently spanning over 25 years and complements the studies conducted in 1996/98 (Hop et al., 2012, doi:10.1515/bot-2012-0097) and 2012-14 (Bartsch et al., 2016, doi:10.1007/s00300-015-1870-1). The aim was to document changes in Arctic kelp forests dynamics in an Arctic fjord system influenced by glacial melt by repeatedly sampling the same site in a standardized manner. As ocean temperatures in the Arctic have risen substantially and underwater light climate continuously deteriorated over this time period, alterations were observed in the seaweed community, especially kelps as major coastal foundation species. The data file contains a range of standard morphometric measurements of individual kelps (and associated seaweeds) by depth, quadrat (replicate), and species. The taxonomic 'Class' of the species is provided, as well as a 'Category' that shows if the species is a kelp, or was found in the understory of the kelp forest. Within the species column there is a 'Digitate kelps' value. This is due to the complication of the visual similarity of Laminaria digitata and Hedophyllum nigripes. Because these are field data, and the distinction between these species requires genetic lab work, the exact species identification is not possible here. Historically these kelps were considered Laminaria digitata. In some rare cases, the leaf area and/or Total FW and Total DW were measured together for multiple specimens (especially juveniles together with others). When this was done, a comment can be found for that row of data. completed Düsedau, Luisa
luisa.duesedau@awi.de
https://orcid.org/0000-0002-2750-6437 information principalInvestigator Biomass Depth transect kelp forest leaf area index (LAI) Svalbard theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact FACE-IT Arctic Biodiversity & Livelihoods theme <gco:CharacterString>PANGAEA Project List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 11.9872 11.9872 78.9958 78.9958 2021-06-25T00:00:00 2021-07-15T00:00:00 0.0 15.0 DATE/TIME thematicClassification DEPTH, water physicalMeasurement m m Replicate thematicClassification Size thematicClassification Quadrat size [cm] Category thematicClassification Class thematicClassification Species thematicClassification Species, unique identification thematicClassification Individuals physicalMeasurement # # Individual association thematicClassification Stipe length physicalMeasurement Ruler tape cm cm Blade length physicalMeasurement Ruler tape cm cm Blade width physicalMeasurement Ruler tape cm cm Leaf area physicalMeasurement Digital camera, Canon, EOS 600D; followed by image analysis software, Schneider et al. 2012, ImageJ Version 2.1.0 cm**2 cm**2 Stipe biomass, wet mass physicalMeasurement Scale, Mettler Toledo, PB3002-S/FACT Delta Range g g Stipe biomass, dry mass physicalMeasurement Scale, Mettler Toledo, PB3002-S/FACT Delta Range g g Holdfast biomass, wet mass physicalMeasurement Scale, Mettler Toledo, PB3002-S/FACT Delta Range g g Holdfast biomass, dry mass physicalMeasurement Scale, Mettler Toledo, PB3002-S/FACT Delta Range g g Blade biomass, wet mass physicalMeasurement Scale, Mettler Toledo, PB3002-S/FACT Delta Range g g Blade biomass, dry mass physicalMeasurement Scale, Mettler Toledo, PB3002-S/FACT Delta Range g g Sporophyll biomass, wet mass physicalMeasurement Scale, Mettler Toledo, PB3002-S/FACT Delta Range g g Sporophyll biomass, dry mass physicalMeasurement Scale, Mettler Toledo, PB3002-S/FACT Delta Range g g Biomass, wet mass physicalMeasurement Scale, Mettler Toledo, PB3002-S/FACT Delta Range g g Biomass, dry mass physicalMeasurement Scale, Mettler Toledo, PB3002-S/FACT Delta Range g g Stipe age physicalMeasurement According to Parke (1948); Adult stipe age a a Comment thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.963565?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: Hansneset_KELP_2021 * LATITUDE: 78.995800 * LONGITUDE: 11.987200 * METHOD/DEVICE: Observation Observation between June - August 2021 Supplement to <gco:CharacterString>Kelp forest community structure and demography in Kongsfjorden (Svalbard) across 25 years of Arctic warming</gco:CharacterString> 2024-01-01 publication https://doi.org/10.1002/ece3.11606 Düsedau, Luisa
luisa.duesedau@awi.de
https://orcid.org/0000-0002-2750-6437 information author Fredriksen, Stein
stein.fredriksen@ibv.uio.no
author Brand, Markus
Markus.Brand@awi.de
https://orcid.org/0000-0003-4768-1889 information author Fischer, Philipp
philipp.fischer@awi.de
https://orcid.org/0000-0002-3357-5420 information author Karsten, Ulf
ulf.karsten@uni-rostock.de
https://orcid.org/0000-0002-2955-0757 information author Bischof, Kai
kai.bischof@uni-bremen.de
https://orcid.org/0000-0002-4497-1920 information author Savoie, Amanda
asavoie@nature.ca
author Bartsch, Inka
inka.bartsch@awi.de
https://orcid.org/0000-0001-7609-2149 information author documentDigital Ecology and Evolution 14(6) e11606 References <gco:CharacterString>Changes in kelp forest biomass and depth distribution in Kongsfjorden, Svalbard, between 1996–1998 and 2012–2014 reflect Arctic warming</gco:CharacterString> 2016-01-01 publication https://doi.org/10.1007/s00300-015-1870-1 Bartsch, Inka
inka.bartsch@awi.de
https://orcid.org/0000-0001-7609-2149 information author Paar, Martin
martin.paar@uni-greifswald.de
author Fredriksen, Stein
stein.fredriksen@ibv.uio.no
author Schwanitz, Max
max.schwanitz@awi.de
author Daniel, Claudia
claudia.daniel@awi.de
author Hop, Haakon
haakon.hop@npolar.no
author Wiencke, Christian
christian.wiencke@awi.de
https://www.awi.de/en/about-us/organisation/staff/single-view/christian-wiencke.html information author documentDigital Polar Biology 16 pp References <gco:CharacterString>Species composition, zonation, and biomass of marine benthic macroalgae in Kongsfjorden, Svalbard</gco:CharacterString> 2012-01-01 publication https://doi.org/10.1515/bot-2012-0097 Hop, Haakon
haakon.hop@npolar.no
author Wiencke, Christian
christian.wiencke@awi.de
https://www.awi.de/en/about-us/organisation/staff/single-view/christian-wiencke.html information author Vögele, Barbara author Kovaltchouk, Nikolaj A author documentDigital Botanica Marina 55(4) 399-414