Presence of urchin barrens from annotated video

Annotations of Centrostephanus rogersii sea urchin barrens 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 urchin barrens and to provide validation for the identification of urchin barrens from multibeam surveys.

Simple

Identification info

Date (Creation)
2021-12-08

Principal investigator

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Shelamoff, Victor
ORCID ID >

Principal investigator

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Lucieer, Vanessa
ORCID ID >

Principal investigator

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Keane, John
ORCID ID >

Principal investigator

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Ling, Scott
ORCID ID >

Processor

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Nau, Amy
ORCID ID >

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
ORCID ID >

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
NASA/GCMD Keywords, Version 8.5
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
AODN Platform Vocabulary

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). Presence of urchin barrens from annotated 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/684f371f-c5de-4a39-af91-35a24bfc526e on [access date]
Language
English
Character encoding
UTF8

Content Information

Content type
Physical measurement
Name
label

Name
Categorical classification of barren density

Distribution Information

Distribution format
  • ESRI Shapefile

OnLine resource
SHAPE-ZIP

DATA ACCESS - urchin barren density from annotated video [Shapefile download]

OnLine resource
imas:AbHab_urchin_barrens_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 urchin barren patches, whereby the start and end-point of individual barrens were recorded as precisely as possible with the assistance of Biigle video analysis software (https://biigle.de/). The different barrens were categorised as being dense (representing barrens with >85% cover based on the camera's field of view), common (barrens with 40-85% cover) or rare (barrens with < 40% cover). 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

Code
unmanned autonomous underwater vehicle

Metadata

Metadata identifier
684f371f-c5de-4a39-af91-35a24bfc526e

Language
English
Character encoding
UTF8

Point of contact

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - IMAS Data Manager ()
Parent metadata

Type of resource

Resource scope
Dataset
Metadata linkage
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/684f371f-c5de-4a39-af91-35a24bfc526e

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


Keywords

Multi-beam validation Video survey
AODN Platform Vocabulary
unmanned autonomous underwater vehicle
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
Ecosystem Function Fisheries Management Marine and Estuarine Ecology (incl. Marine Ichthyology)
NASA/GCMD Keywords, Version 8.5
EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | ANIMALS/INVERTEBRATES | ECHINODERMS | SEA URCHINS EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PLANTS | MACROALGAE (SEAWEEDS)

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Associated resources

Not available