TemperateReefBase Geonetwork Catalogue
Data: The roles of sea-ice, light and sedimentation in structuring shallow Antarctic benthic communities
Data repository for the paper:
"The roles of sea-ice, light and sedimentation in structuring shallow Antarctic benthic communities"
Graeme F. Clark, Jonathan S. Stark, Anne S. Palmer, Martin J. Riddle, Emma L. Johnston.
PLoS ONE
Data are boulder communities (epifauna), annual light budgets, and sediment traps. See the paper for more details.
ABSTRACT
On polar coasts, seasonal sea-ice duration strongly influences shallow marine environments by affecting environmental conditions, such as light, sedimentation, and physical disturbance. Sea-ice dynamics are changing in response to climate, but there is limited understanding of how this might affect shallow marine environments and benthos. Here we present a unique set of physical and biological data from a single region of Antarctic coast, and use it to gain insights into factors shaping polar benthic communities. At sites encompassing a gradient of sea-ice duration, we measured temporal and spatial variation in light and sedimentation and hard-substrate communities at different depths and substrate orientations. Biological trends were highly correlated with sea-ice duration, and appear to be driven by opposing gradients in light and sedimentation. As sea-ice duration decreased, there was increased light and reduced sedimentation, and concurrent shifts in community structure from invertebrate to algal dominance. Trends were strongest on shallower, horizontal surfaces, which are most exposed to light and sedimentation. Depth and substrate orientation appear to mediate exposure of benthos to these factors, thereby tempering effects of sea-ice and increasing biological heterogeneity. However, while light and sedimentation both varied spatially with sea-ice, their dynamics differed temporally. Light was sensitive to the site-specific date of sea-ice breakout, whereas sedimentation fluctuated at a regional scale coincident with the summer phytoplankton bloom. Sea-ice duration is clearly the overarching force structuring these shallow Antarctic benthic communities, but direct effects are imposed via light and sedimentation, and mediated by habitat characteristics.
Data files:
Boulder_community_data.csv
- Percentage cover data for sessile organisms (invertebrates and algae) growing on boulder surfaces.
- Columns 1 to 5 are sample attributes, columns 6 to 57 are measured variables (species or bare space).
Light_budget_data.csv
- Annual light budgets at each site, recorded by light metres.
- Columns are site name and annual light budget (mol photons m-2 year-1)
Sediment_trap_data.csv
- Total sediment collected in sediment traps
- Columns are site label, position in bay, replicate, dates deployed and retrieved, and the calculated sediment flux (g m-2 d-1)
Simple
Identification info
- Alternate title
- Data: The roles of sea-ice, light and sedimentation in structuring shallow Antarctic benthic communities
- Date (Publication)
- 2016-11-30
- Edition
- 1
- Citation identifier
-
Dataset DOI
- Title
- Information and documentation - Digital object identifier system
- Date (Publication)
- 2012-04-23
- Citation identifier
- ISO 26324:2012
- Citation identifier
- doi:10.4225/15/583e091b737e5
Originator
Publisher
Principal investigator
Principal investigator
Collaborator
Collaborator
- Name
- CAASM Metadata
- Purpose
- As a data repository for the paper.
- Status
- Completed
Custodian
Spatial resolution
- Vertical sampling distance
- 1
Spatial resolution
- Spatial resolution
- 10
Spatial resolution
- Spatial resolution
- 10
- Temporal resolution
-
PT1S
- Topic category
-
- Biota
- Environment
- Oceans
Extent
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 1999-01-01 2006-12-12
Extent
- Description
- Vertical Extent - Altitude
Vertical element
- Minimum value
- 0
- Maximum value
- 0
- Identifier
- urn:x-ogc:def:cs:EPSG:6499
- Name
- Vertical CS. Axis: height (H). Orientation: up. UoM: m.
- Identifier
- urn:x-ogc:def:axis:EPSG:114
- Name
- height
Extent
- Description
- Vertical Extent - Depth
Vertical element
- Minimum value
- 1
- Maximum value
- 20
- Identifier
- urn:x-ogc:def:cs:EPSG:6498
- Name
- Vertical CS. Axis: depth (D). Orientation: down. UoM: m.
- Identifier
- urn:x-ogc:def:axis:EPSG:113
- Name
- depth
- Title
- The roles of sea-ice, light and sedimentation in structuring shallow Antarctic benthic communities.
- Date (Publication)
- 2016
Author
- Name
- PLoS ONE
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > PLANKTON > PHYTOPLANKTON
- EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON
- EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS
- EARTH SCIENCE > CRYOSPHERE > SEA ICE
- EARTH SCIENCE > CRYOSPHERE > SEA ICE > SEA ICE CONCENTRATION
- EARTH SCIENCE > OCEANS > MARINE SEDIMENTS
- EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENTATION
- EARTH SCIENCE > OCEANS > SEA ICE > SEA ICE CONCENTRATION
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES
- Keywords
-
- Light
- Benthic Communities
- Sedimentation
- NASA/GCMD Earth Science Keywords
-
- FIELD SURVEYS
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- AMD
- CEOS
- NASA/GCMD Earth Science Keywords
-
- GEOGRAPHIC REGION > POLAR
- CONTINENT > ANTARCTICA > Casey
- OCEAN > SOUTHERN OCEAN
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- These data are publicly available for download from the provided URL.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- If using this data for a publication, we ask that you first gain permission from the authors. This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_2691_Clark_et_al_2016 when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- Free
- Planned available datetime
- 2016-11-30T00:00:00
- Units of distribution
- kb
- Transfer size
- 21
- Distribution format
-
- csv
- OnLine resource
-
GET DATA
Download point for the data
- OnLine resource
-
PROJECT HOME PAGE
Public information for AAS project AAS_2691
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset.
Resource lineage
- Statement
- None
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2016-11-29 - record created by Graeme Clark.
Metadata
- Metadata identifier
- string/AAS_2691_Clark_et_al_2016
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 53dd1200-99b2-40d8-afc9-c51b12729164
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2021-11-17T12:22:29
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/AAS_2691_Clark_et_al_2016
Point of truth for the metadata record
- Date info (Creation)
- 2016-11-28T00:00:00
- Date info (Last Update)
- 2017-04-26
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile
Overviews
Spatial extent
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