Data_Sheet_2_Effects of Detached Seaweeds on Structure and Function of Arctic Intertidal Soft-Bottom Communities.CSV
Expected lower sea-ice cover and increased storm frequency have led to projections of an increase in seaweed detritus in Arctic marine systems in the near future. To assess whether detached seaweed affects structural and functional traits of species assemblages in soft-bottom habitats, comparable ex...
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ftfrontimediafig:oai:figshare.com:article/14112659 2023-05-15T14:58:02+02:00 Data_Sheet_2_Effects of Detached Seaweeds on Structure and Function of Arctic Intertidal Soft-Bottom Communities.CSV María José Díaz Christian Buschbaum Paul E. Renaud Markus Molis 2021-02-25T06:27:47Z https://doi.org/10.3389/fmars.2021.575885.s002 https://figshare.com/articles/dataset/Data_Sheet_2_Effects_of_Detached_Seaweeds_on_Structure_and_Function_of_Arctic_Intertidal_Soft-Bottom_Communities_CSV/14112659 unknown doi:10.3389/fmars.2021.575885.s002 https://figshare.com/articles/dataset/Data_Sheet_2_Effects_of_Detached_Seaweeds_on_Structure_and_Function_of_Arctic_Intertidal_Soft-Bottom_Communities_CSV/14112659 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Svalbard habitat connectivity disturbance climate change biodiversity benthos Arctic biota Biotic drivers Dataset 2021 ftfrontimediafig https://doi.org/10.3389/fmars.2021.575885.s002 2021-03-04T00:00:38Z Expected lower sea-ice cover and increased storm frequency have led to projections of an increase in seaweed detritus in Arctic marine systems in the near future. To assess whether detached seaweed affects structural and functional traits of species assemblages in soft-bottom habitats, comparable experiments were run in two intertidal sites (Longyearbyen and Thiisbukta) on Svalbard. At each site, we fixed nets containing the locally dominating seaweeds Saccharina latissima and Desmarestia aculeata (Thiisbukta) or Fucus sp. (Longyearbyen) to intertidal mud flats. Empty nets were fixed as procedural controls at both sites. After 2.5 months, one sediment core was taken from each manipulated plot and the number of individuals, dry mass, and average length of each encountered animal taxon were recorded. The same measurements were taken from cores collected from unmanipulated areas at each site, both at the start and end of the experiment. Abundance data were used to calculate estimates of diversity (Shannon-index, evenness, and taxon richness), while initial and final average length measurements were used to estimate taxon-specific growth. Log response ratios of initial and final abundance in unmanipulated areas were used to estimate magnitude and direction of the effect of change in community traits over time, serving as a reference to log response ratios estimating manipulated seaweed effects. In Longyearbyen, the presence of detached seaweeds reduced abundance and dry mass by, on average, 46 and 70%, respectively, compared to unmanipulated benthic communities. In Thiisbukta, the presence of seaweeds enhanced evenness, on average by 16%, but reduced abundance and growth of benthic fauna by, on average, 31 and 86%, respectively. Seaweed effects were generally smaller in Thiisbukta than in Longyearbyen. At both sites, time effects were generally opposite in direction to those caused by the seaweed treatments, yet of similar or larger magnitude. Through reversing temporal dynamics of several of the tested community ... Dataset Arctic Climate change Longyearbyen Sea ice Svalbard Frontiers: Figshare Arctic Svalbard Longyearbyen Thiisbukta ENVELOPE(11.959,11.959,78.926,78.926) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Svalbard habitat connectivity disturbance climate change biodiversity benthos Arctic biota Biotic drivers |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Svalbard habitat connectivity disturbance climate change biodiversity benthos Arctic biota Biotic drivers María José Díaz Christian Buschbaum Paul E. Renaud Markus Molis Data_Sheet_2_Effects of Detached Seaweeds on Structure and Function of Arctic Intertidal Soft-Bottom Communities.CSV |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Svalbard habitat connectivity disturbance climate change biodiversity benthos Arctic biota Biotic drivers |
description |
Expected lower sea-ice cover and increased storm frequency have led to projections of an increase in seaweed detritus in Arctic marine systems in the near future. To assess whether detached seaweed affects structural and functional traits of species assemblages in soft-bottom habitats, comparable experiments were run in two intertidal sites (Longyearbyen and Thiisbukta) on Svalbard. At each site, we fixed nets containing the locally dominating seaweeds Saccharina latissima and Desmarestia aculeata (Thiisbukta) or Fucus sp. (Longyearbyen) to intertidal mud flats. Empty nets were fixed as procedural controls at both sites. After 2.5 months, one sediment core was taken from each manipulated plot and the number of individuals, dry mass, and average length of each encountered animal taxon were recorded. The same measurements were taken from cores collected from unmanipulated areas at each site, both at the start and end of the experiment. Abundance data were used to calculate estimates of diversity (Shannon-index, evenness, and taxon richness), while initial and final average length measurements were used to estimate taxon-specific growth. Log response ratios of initial and final abundance in unmanipulated areas were used to estimate magnitude and direction of the effect of change in community traits over time, serving as a reference to log response ratios estimating manipulated seaweed effects. In Longyearbyen, the presence of detached seaweeds reduced abundance and dry mass by, on average, 46 and 70%, respectively, compared to unmanipulated benthic communities. In Thiisbukta, the presence of seaweeds enhanced evenness, on average by 16%, but reduced abundance and growth of benthic fauna by, on average, 31 and 86%, respectively. Seaweed effects were generally smaller in Thiisbukta than in Longyearbyen. At both sites, time effects were generally opposite in direction to those caused by the seaweed treatments, yet of similar or larger magnitude. Through reversing temporal dynamics of several of the tested community ... |
format |
Dataset |
author |
María José Díaz Christian Buschbaum Paul E. Renaud Markus Molis |
author_facet |
María José Díaz Christian Buschbaum Paul E. Renaud Markus Molis |
author_sort |
María José Díaz |
title |
Data_Sheet_2_Effects of Detached Seaweeds on Structure and Function of Arctic Intertidal Soft-Bottom Communities.CSV |
title_short |
Data_Sheet_2_Effects of Detached Seaweeds on Structure and Function of Arctic Intertidal Soft-Bottom Communities.CSV |
title_full |
Data_Sheet_2_Effects of Detached Seaweeds on Structure and Function of Arctic Intertidal Soft-Bottom Communities.CSV |
title_fullStr |
Data_Sheet_2_Effects of Detached Seaweeds on Structure and Function of Arctic Intertidal Soft-Bottom Communities.CSV |
title_full_unstemmed |
Data_Sheet_2_Effects of Detached Seaweeds on Structure and Function of Arctic Intertidal Soft-Bottom Communities.CSV |
title_sort |
data_sheet_2_effects of detached seaweeds on structure and function of arctic intertidal soft-bottom communities.csv |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmars.2021.575885.s002 https://figshare.com/articles/dataset/Data_Sheet_2_Effects_of_Detached_Seaweeds_on_Structure_and_Function_of_Arctic_Intertidal_Soft-Bottom_Communities_CSV/14112659 |
long_lat |
ENVELOPE(11.959,11.959,78.926,78.926) |
geographic |
Arctic Svalbard Longyearbyen Thiisbukta |
geographic_facet |
Arctic Svalbard Longyearbyen Thiisbukta |
genre |
Arctic Climate change Longyearbyen Sea ice Svalbard |
genre_facet |
Arctic Climate change Longyearbyen Sea ice Svalbard |
op_relation |
doi:10.3389/fmars.2021.575885.s002 https://figshare.com/articles/dataset/Data_Sheet_2_Effects_of_Detached_Seaweeds_on_Structure_and_Function_of_Arctic_Intertidal_Soft-Bottom_Communities_CSV/14112659 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2021.575885.s002 |
_version_ |
1766330123180572672 |