Kelp habitat density and composition from underwater video
Annotations of canopy forming seaweed derived from towed video at selected key abalone blocks along the east coast of Tasmania. The purpose of the study was to examine the patch dynamics of seaweeds and urchin barrens and to provide validation for the identification of urchin barrens from multibeam surveys.
Simple
Identification info
- Date (Creation)
- 2021-12-10
Principal investigator
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Shelamoff, Victor
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
Principal investigator
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Lucieer, Vanessa
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
Principal investigator
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Nau, Amy
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
Principal investigator
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Ling, Scott
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
Principal investigator
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Keane, John
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
- Credit
- Abalone Industry Re-investment Fund (AIRF)
- Credit
- Tasmanian Climate Change Office
- Credit
- Sustainable Marine Research Collaboration Agreement (SMRCA)
- Status
- complete
Principal investigator
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Shelamoff, Victor
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
- Topic category
-
- Biota
Extent
N
S
E
W
Temporal extent
- Time period
- 2020-10-31 2021-04-23
Vertical element
- Minimum value
- 0
- Maximum value
- 25
- Identifier
- EPSG::5715
- Name
- MSL depth
- Maintenance and update frequency
- none-planned
Resource format
- Date
- Keywords (Theme)
-
- multi-beam validation
- video survey
- Keywords (Taxon)
-
- Centrostephanus rogersii
- Haliotis rubra
- Ecklonia radiata
- Phyllospora comosa
- NASA/GCMD Keywords, Version 8.5
Resource constraints
- Classification
- Unclassified
Resource constraints
- Use limitation
- The data described in this record are the intellectual property of the University of Tasmania through the Institute for Marine and Antarctic Studies.
Resource constraints
- Linkage
-
https://i.creativecommons.org/l/by/4.0/88x31.png
License Graphic
- Title
- Creative Commons Attribution 4.0 International License
- Website
-
https://creativecommons.org/licenses/by/4.0/
License Text
- Other constraints
- Cite data as: Shelamoff, V. Lucieer, V. Keane, J. Lau, A. Ling, S. (2021). Kelp habitat density and composition from underwater video. Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS). Data accessed from https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/a99cefff-dd6e-4afe-9102-37ab2bf0a8e5 on [access date]
- Language
- English
- Character encoding
- UTF8
Content Information
- Content type
- Physical measurement
- Description
- Kelp canopy density
Identifier
- Code
- Abundance of biota
- Description
- Kelp canopy species
Identifier
Distribution Information
- Distribution format
-
-
ESRI Shapefile
-
ESRI Shapefile
- OnLine resource
-
SHAPE-ZIP
DATA ACCESS - urchin barren density from annotated video [Shapefile download]
- OnLine resource
-
imas:AbHab_kelp_scored_video
MAP - urchin barren density from annotated video
Resource lineage
- Statement
- Towed underwater video was collected at selected key abalone blocks along the east coast of Tasmania (Blocks 22/23 –Tasman, Block 24 - Maria, Block 27 - Freycinet, Blocks - 29/30 St Helens). These blocks were chosen as prior diver and towed-video surveys revealed highly variable urchin densities and overgrazing impacts ranging from small metre-scale incipient barrens up to larger barrens features up to ~100s m in length. The video footage was annotated at the scale of individual kelp patches, whereby the start and end-point of individual patches were recorded as precisely as possible with the assistance of Biigle video analysis software (https://biigle.de/). The different kelp patches were categorised based on the canopy species and the overall percentage cover of the canopy (sparse = 0-20% cover, middle= 20-60%, dense=60-100% cover). Eck= Ecklonia radiata, Phyll = Phyllospora comoasa, Cys= Cystophora sp. Other = all other canopy species, bare= completely bare reef. These annotations were then matched to GPS coordinates collected from a transponder mounted to the camera platform.
- Hierarchy level
- Dataset
- Hierarchy level
- Dataset
Platform
Identifier
Metadata
- Metadata identifier
-
a99cefff-dd6e-4afe-9102-37ab2bf0a8e5
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/a99cefff-dd6e-4afe-9102-37ab2bf0a8e5
Point of truth URL of this metadata record
- Date info (Creation)
- 2015-05-06T11:44:25
- Date info (Revision)
- 2015-05-06T11:44:25
Metadata standard
- Title
- ISO 19115-3:2018
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available