IMAS Metadata Catalogue
Sand flathead (Platycephaluss bassensis) from a heavily fished region show greater thermal sensitivity of metabolic rate and a reduced capacity for thermal acclimation
This dataset contains physiological measurements collected from sand flathead (Platycephalus bassensis) to examine regional differences in thermal performance between Tasmania’s heavily fished southern population and the more lightly fished northern population. Fish were captured from both regions and acclimated for three weeks under common laboratory conditions before measurements were taken.
The dataset includes standard metabolic rate (SMR), maximum metabolic rate (MMR), and aerobic scope (AS) recorded during acute thermal exposure at 12.5°C, 15°C, and 20°C using intermittent‑flow respirometry. To assess longer‑term thermal tolerance, critical thermal maximum (CTmax) was measured after a 14‑day acclimation to each test temperature.
The purpose of the study was to determine whether populations with different histories of fishing pressure exhibit divergent thermal sensitivities and metabolic responses to warming. This information contributes to understanding how exploitation history may influence physiological resilience to climate change in coastal fisheries.
Simple
Identification info
- Date (Publication)
- 2026-03-05T00:00:00
Identifier
- Title
- Information and documentation - Digital object identifier system
- Citation identifier
- ISO 26324:2012
- Code
- 10.25959/R042-3913
- Codespace
- doi.org
- Description
- Digital Object Identifier (DOI)
Resource provider
Principal investigator
- Status
- Completed
Point of contact
- Topic category
-
- Biota
Extent
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Temporal extent
- Time period
- 2025-01-01 2025-06-01
- Maintenance and update frequency
- Not planned
- Keywords (Theme)
-
- Physiology
- Thermal Tolerance
- Keywords (Taxon)
-
- Platycephalus bassensis
- Sand flathead
- Global Change Master Directory Earth Science Keywords, Version 8.5
Resource constraints
- Use limitation
- Data, products and services from IMAS are provided "as is" without any warranty as to fitness for a particular purpose.
Resource constraints
- Other constraints
- This dataset is the intellectual property of the University of Tasmania (UTAS) through the Institute for Marine and Antarctic Studies (IMAS).
Resource constraints
- Linkage
-
https://licensebuttons.net/l/by/4.0/88x31.png
License Graphic
- Title
- Creative Commons Attribution 4.0 International License
- Alternate title
- CC-BY
- Edition
- 4.0
- Website
-
https://creativecommons.org/licenses/by/4.0/
License Text
- Other constraints
- Cite data as: Rossiter-Hill, F. (2026). Sand flathead (Platycephaluss bassensis) from a heavily fished region show greater thermal sensitivity of metabolic rate and a reduced capacity for thermal acclimation [Data set]. Institute for Marine and Antarctic Studies. https://doi.org/10.25959/R042-3913
- Language
- English
- Character encoding
- UTF8
Content Information
- Content type
- Physical measurement
Identifier
- Code
- Respirometry - oxygen saturation
- Name
- MO₂ (mg O₂ kg⁻¹ h⁻¹)
Distribution Information
- Distribution format
-
- Microsoft excel
Resource lineage
- Statement
- Sand flathead (Platycephalus bassensis) were collected from northern and southern Tasmanian coastal waters using standard recreational rod‑and‑line fishing gear. Fish were transported to the laboratory and held under controlled conditions for a three‑week acclimation period prior to measurements. Metabolic rates were quantified using intermittent‑flow respirometry, which provides high‑resolution measurements of oxygen consumption. Standard metabolic rate (SMR), maximum metabolic rate (MMR), and aerobic scope (AS) were measured during acute temperature exposures at 12.5°C, 15°C, and 20°C. Oxygen consumption data were recorded at fine temporal resolution to capture stable SMR estimates and post‑exercise MMR peaks. Thermal tolerance was assessed by determining critical thermal maximum (CTmax) after a 14‑day acclimation to each temperature. CTmax trials followed a controlled warming protocol with a constant temperature ramp until loss of equilibrium. All measurements were taken under consistent laboratory conditions to ensure comparability between populations, and the precision of respirometry systems allowed detection of small changes in metabolic rate across temperatures.
- Hierarchy level
- Dataset
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
- urn:uuid/1c0d0211-9b01-40b9-8d51-6ebf72fa127d
- Language
- English
- Character encoding
- UTF8
Type of resource
- Resource scope
- Dataset
- Name
- IMAS Dataset level record
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/1c0d0211-9b01-40b9-8d51-6ebf72fa127d
Point of truth URL of this metadata record
- Date info (Creation)
- 2026-03-05T00:00:00
- Date info (Revision)
- 2026-03-05T17:20:27
Metadata standard
- Title
- ISO 19115-3:2018
Overviews
Spatial extent
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