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Marine Produce Australia: Cone Bay Barramundi Aquaculture ...

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5.4.2 Movement of stock<br />

Movement or partial harvest of the stock may be considered as a temporary measure to<br />

reduce pressures on water or sediment quality, and to allow time for sediment and water<br />

quality indicators to comply with the specified levels of ecological protection.<br />

5.4.3 Reduction of stocking densities<br />

Reduction of stocking density through splitting cages and selective harvest may be<br />

implemented as a temporary measure to reduce pressures on water or sediment quality, and<br />

to allow time for sediment and water quality indicators to comply with the specified levels of<br />

ecological protection.<br />

5.4.4 Reduction of feed input rates<br />

Reduction of feed input rates may be implemented as a temporary measure to reduce<br />

pressures on water or sediment quality, and to allow time for sediment and water quality<br />

indicators to comply with the specified levels of ecological protection.<br />

5.5 Timelines for remedying the source of an exceedance<br />

In the event that an EQG trigger level is exceeded, the proponent will report the matter to<br />

the DoF and the OEPA within one working day of determining that this has occurred, and<br />

initiate investigation against the EQS as soon as reasonably practicable.<br />

In the event that an EQS is exceeded, the proponent will report the matter to the DoF and<br />

the OEPA within one working day of determining that this has occurred and will commence<br />

management to (i) reduce the effect and/or mitigate the source of the contaminants, and (ii)<br />

to restore environmental quality within the specified level of ecological protection.<br />

During the management phase, MPA will continue to monitor the impacted sites to measure<br />

the status of the recovery process. The level of recovery following an exceedance will be<br />

reported in the Proponents Annual Compliance Reports. Studies conducted in Tasmania<br />

found that physical chemical parameters in sediments beneath sea-cages recovered within<br />

two years of fallowing (Crawford 2003).<br />

44 Oceanica: <strong>Marine</strong> <strong>Produce</strong> <strong>Australia</strong>: <strong>Cone</strong> <strong>Bay</strong> <strong>Barramundi</strong> <strong>Aquaculture</strong>, Environmental Monitoring & Management Plan

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