WATER TEMPERATURE
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Samples of Temperature and Salinity from a CTD profile have been measured at Station 5 in the Derwent Estuary between August 2012 and January 2013.
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Samples of Temperature and Salinity from a CTD profile have been measured at Station 3 in the Derwent Estuary between August 2012 and January 2013.
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Samples of Temperature and Salinity from a CTD profile have been measured at Station 9 in the Derwent Estuary between August 2012 and January 2013.
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Samples of Temperature and Salinity from a CTD profile have been measured at Station 2 in the Derwent Estuary between August 2012 and January 2013.
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Temperature loggers have been deployed at a range of sites statewide in waters ranging between 6 and 22m depth. From 2012, 27 sites around Tasmania are being monitored. This record shows data collected from 2004 up to December 2020. Data is still being collected (April 2023) and will be added to this collection as it becomes available.
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Samples of Temperature and Salinity from a CTD profile have been measured at Station1 in the Derwent Estuary between August 2012 and January 2013.
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Samples of Temperature and Salinity from a CTD profile have been measured at Station 6 in the Derwent Estuary between August 2012 and January 2013.
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Samples of Temperature and Salinity from a CTD profile have been measured at 6 Stations in the Derwent Estuary between August 2012 and January 2013.
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Conducted a series of laboratory experiments to investigate the effect of temperature on swimming behaviour and development. Swimming behavioural responses were monitored for the first two zoeal stages, while larvae in development trials were reared through all five zoeal stages to the megalopa stage.
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Inter-moult duration in giant crabs (Pseudocarcinus gigas) was estimated by an alternative method to utilising tag-recovery data. Reproduction in female giant crabs occurs in annual cycles, although females occasionally “skip” a reproductive season and do not become ovigerous; it has been noted previously that this appears to be associated with molting. Thus the proportion of females that do not participate in reproduction may indicate the proportion molting. This approach was tried with a sample of 342 females and the number that were “skipping” a reproductive season was measured by computerized tomography scanning (CT-scanning) of their ovaries prior to the extrusion of eggs. Radiometric aging (228Th/ 228Ra) of carapaces was also undertaken with the focus of this work on testing an assumption of the method, rather than describing the intermolt duration of a population.