Measuring shell hardness in Southern Rock Lobster (Jasus edwardsii) using a durometer
Southern Rock Lobster (Jasus edwardsii) that are about to moult or have recently moulted have reduced market value due to higher mortality in live transport, higher cannibalism and lower meat recovery.
Limiting the landing of softer shelled lobsters is desirable to maintain product quality.
The effects of several factors on durometer readings were evaluated: sex, temperature (ambient plus elevated 3°C), location (from around the coast), and size (carapace length).
Individuals were collected across two regions South Australia and Tasmania.
Simple
Identification info
- Date (Creation)
- 2007-03-29T00:00:00
Principal investigator
- Purpose
- To determine if durometers can be used to accurately measure shell hardness of southern rock lobsters.
- Status
- Completed
Principal investigator
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Gardner, Caleb, Dr
IMAS - Taroona
Private Bag 49
Hobart
TAS
7001
Australia
- Topic category
-
- Biota
Extent
N
S
E
W
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S
E
W
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E
W
N
S
E
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- Geographic identifier
-
South Australia
- Title
- Marine Community Profile v1.2 Geographic extent names
- Date (Revision)
- 2006-10-13T00:00:00
Owner
Australian Ocean Data Centre Joint Facility
- Geographic identifier
-
Tasmania
- Title
- Marine Community Profile v1.2 Geographic extent names
- Date (Revision)
- 2006-10-13T00:00:00
Owner
Australian Ocean Data Centre Joint Facility
Temporal extent
- Time period
- 2006-01-01T00:00:00 2006-01-01T00:00:00
Vertical element
- Minimum value
- 1
- Maximum value
- 50
- Identifier
- EPSG::5715
- Name
- MSL depth
- Maintenance and update frequency
- Not planned
Resource format
- Title
- Microsoft Excel (xls)
- Date
- Edition
- 2003
- CAAB - Codes for Australian Aquatic Biota v2.
-
- 28 820001
- Jasus edwardsii
- Southern rock lobster
- Keywords (Place)
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- Tasmania
- Keywords (Place)
-
- South Australia
- Keywords (Theme)
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- Durometer
- Global Change Master Directory (GCMD) Earth Science Keywords Version 8.0
- Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
Resource constraints
- Access constraints
- Copyright
- Use constraints
- Copyright
- Other constraints
- See point of contact for access to the data.
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 Tasmanian Aquaculture and Fisheries Institute.
- Language
- English
- Character encoding
- UTF8
- Environment description
- Rock lobster shell hardness field work 1c.xls, Processor shell hardness classification.xls, female and male data.xls Uni_file_Id: TAS_CG_20070329_01
- Supplemental Information
- Gardner C., Musgrove R. (2006) Quantifying Shell Hardness in the Southern Rock Lobster (Jasus edwardsii) Journal of Aquatic Food Product Technology, 15(2):17-35.
Distribution Information
- Distribution format
-
- Microsoft Excel (xls)
Distributor
Principal investigator
- Title
- Microsoft Excel (xls)
- Date
- Edition
- 2003
- OnLine resource
- DATA - female and male characteristics [direct download]
- OnLine resource
- DATA - rock lobster shell hardness field work [direct download]
- OnLine resource
-
imas:TAF_CGardner_Measuring_shell_hardness_southern_rock_lobster_GV
MAP - Locations of rock lobster collections
Metadata
- Metadata identifier
- f99eea20-2513-11dc-aba4-00188b4c0af8
- 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/f99eea20-2513-11dc-aba4-00188b4c0af8
Point of truth URL of this metadata record
- Date info (Creation)
- 2021-03-30T21:23:37
- Date info (Revision)
- 2021-03-30T21:23:37
Metadata standard
- Title
- ISO 19115-3:2018
Overviews
Spatial extent
N
S
E
W
N
S
E
W
N
S
E
W
N
S
E
W
N
S
E
W
N
S
E
W
N
S
E
W
Provided by
Associated resources
Not available