TemperateReefBase Geonetwork Catalogue
Effects of UV radiation on community establishment: a global perspective
Increased ultraviolet radiation (UV-A and/or UV-B) may impact on the establishment and structure of a shallow water benthic invertebrate assemblages. A global experiment in more than 8 countries, using an identical methodology (transparent UV filters) will add significantly to our understanding of the impacts of anthropogenically induced global change on natural systems.
To appraise the effects of increased UVR on shallow marine benthic assemblages, five experimental rafts were deployed in protected bays west of Shirley Island near Casey Station, Antarctica (66.16oS 110.30oE). Each raft consisted of eight experimental units, each of which contained a colonization panel (ceramic tile) positioned horizontally and submerged 4-6 cm underwater. Irradiation treatments were randomly assigned to each unit with the use of UV cut-off filters. The treatments were as follows: No UVR (transmits photosynthetically active radiation or PAR, 400-700nm), No UVB (transmits PAR + UVA, 320-700nm), Perspex (full spectrum, 280-700nm, procedural control), or No filter (full spectrum, treatment control). In addition there were three levels of consumer treatments: With consumption (container sides removed), without consumption (container sides perforated with 4 mm holes), and a control (3 sides perforated, 1 side removed). After seven weeks tiles were removed to the laboratory for examination. All tiles were dominated by diatoms and no sessile invertebrates were apparent.
The first trial has been completed, but several other panels are still in place. A conference will be held in early 2002 between participating countries to discuss results and findings.
The 2001\2002 summer season consisted of experimental designs divided up into three separate projects.
The aims were all to provide a corrollary to the previous seasons data.
Project 1 consisted of the extraction and redeployment of settlement depth arrays situated in Geoffrey's Bay and Hollin Island Channel. Due to prevailing weather conditions resulting in limited boating hours and diving program, only one array was retrieved. On inspection of the array it was decided to deploy further replicates to gain a better temporal understanding of the communities.
Projects 2 and 3 consisted of a similar experimental design, however monitoring the shallower depths of settlement (depths of 1m and 2m below sea level) for a period of one month. Project 2 consisted of arrays with two depths and 2 panels per depth, triple replicated, under the icesheet in O'Brien Bay and Shirley Channel, with a substrate depth of 20m. Diatom samples are to be analyzed in Australia. Project 3 was of a similar design to project 2 though it was measuring recruitment in shallow open water. The two sites consisted of Noonan Cove and Geoffrey's Bay at substrate depths of 5m. These tiles are also to be analyzed on return to Australia.
There were 5 rafts used in this study - they are listed as R1 to R5 there were two factors in the design -(i) predator access: Caged (C) Half caged (H) and Open (O) and ii) UV exposure: Perspex (P), Macrolon (M), No filter (N) and Film + perspex (F).
A list of the diatoms found on the settlement panels is provided at the URL below.
The fields in this dataset are:
Species
Sample
Simple
Identification info
- Alternate title
- Effects of UV radiation on community establishment: a global perspective
- Date (Publication)
- 2000-08-11
- 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:10.4225/15/554AABAE068BE
Originator
Publisher
Principal investigator
Collaborator
Collaborator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
- Topic category
-
- Biota
- Imagery base maps earth cover
- Oceans
Extent
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2001-01-05 2001-02-22
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2001-10-12 2001-11-15
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2001-11-22 2001-12-22
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > SPECTRAL/ENGINEERING > ULTRAVIOLET WAVELENGTHS > ULTRAVIOLET RADIANCE
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS
- EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
- EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL
- EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > SPECIES RECRUITMENT
- EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > COMMUNITY STRUCTURE
- Keywords
-
- ABUNDANCE
- CASEY
- COMMUNITY
- DIATOMS
- ESTABLISHMENT
- RECRUITMENT
- SETTLEMENT
- SHIRLEY ISLAND
- SPECIES
- ULTRAVIOLET RADIATION
- UV
- NASA/GCMD Earth Science Keywords
-
- FIELD INVESTIGATION
- FIELD SURVEYS
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- CEOS
- AMD
- NASA/GCMD Earth Science Keywords
-
- CONTINENT > ANTARCTICA > Casey
- CONTINENT > ANTARCTICA > Shirley Island
- CONTINENT > ANTARCTICA > O'Brien Bay
- CONTINENT > ANTARCTICA > Noonan Cove
- CONTINENT > ANTARCTICA > Geoffrey's Bay
- GEOGRAPHIC REGION > POLAR
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- The dataset is publicly available 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
- 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=ASAC_1233 when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- free
- Planned available datetime
- 2000-08-11T00:00:00
- Units of distribution
- kb
- Transfer size
- 3
- Distribution format
-
- .csv
- OnLine resource
-
GET DATA
Download page for Australian Antarctic Data Centre
- OnLine resource
-
PROJECT HOME PAGE
Public information for ASAC project 1233
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2015-05-01 - record updated by Dave Connell - basic updates.
Metadata
- Metadata identifier
- string/ASAC_1233
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 5c277293-1cac-4724-bd5e-3d7d8ef32175
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2015-11-29T18:20:51
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/ASAC_1233
Point of truth for the metadata record
- Date info (Creation)
- 2000-08-11T00:00:00
- 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
Provided by
