Marine Produce Australia: Cone Bay Barramundi Aquaculture ...

Marine Produce Australia: Cone Bay Barramundi Aquaculture ... Marine Produce Australia: Cone Bay Barramundi Aquaculture ...

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Indicator Zone of Ecological Protection Moderate High Maximum* (ii) Median depth of redox discont. layer at any site over a four month must be no less than the 5%ile or 20%ile of Reference Site data* (ii) Median depth of redox discont. layer at any site over a four month must be no less than the 20%ile of Reference Site data (ii) Median depth of redox discont. layer at any site over a four month must be no less than the 20%ile of Reference Site data Notes: * The actual percentile used will depend on the positioning of sea-cages relative to the MEPA/HEPA boundary (see Section 5.1) 32 Oceanica: Marine Produce Australia: Cone Bay Barramundi Aquaculture, Environmental Monitoring & Management Plan

Environmental Quality Standards The EQG for infauna monitoring are outlined in Table 4.10. Table 4.10 EQS for infauna monitoring Indicators Sediment infauna and habitat Moderate Zone of Ecological Protection High Maximum If EQG (i) and/or (ii) is exceeded and the exceedance is based on the moderate protection guideline (95%ile): (i) Sediment infauna community species richness, based on the Inverse Simpson Index, not to be five times less than background (indicative of moderate impact), or (ii) Evaluation of images taken beneath and within 10 m of the sea-cages must not indicate presence of white bacterial matts, black sediments, bubbles of hydrogen sulphide or a significant reduction in the presence of animal tracks, or bioturbator burrows, relative to reference sites If EQG (i) and/or (ii) is exceeded and the exceedance is based on the high protection guideline (80%ile): Proceed to EQS for high and maximum protection Sediment infauna community species richness, based on the Inverse Simpson Index, not to be half that of background (indicative of minor impact) Oceanica: Marine Produce Australia: Cone Bay Barramundi Aquaculture, Environmental Monitoring & Management Plan 33

Environmental Quality Standards<br />

The EQG for infauna monitoring are outlined in Table 4.10.<br />

Table 4.10 EQS for infauna monitoring<br />

Indicators<br />

Sediment infauna and<br />

habitat<br />

Moderate<br />

Zone of Ecological Protection<br />

High Maximum<br />

If EQG (i) and/or (ii) is exceeded<br />

and the exceedance is based on<br />

the moderate protection<br />

guideline (95%ile):<br />

(i) Sediment infauna community<br />

species richness, based on the<br />

Inverse Simpson Index, not to<br />

be five times less than<br />

background (indicative of<br />

moderate impact), or<br />

(ii) Evaluation of images taken<br />

beneath and within 10 m of the<br />

sea-cages must not indicate<br />

presence of white bacterial<br />

matts, black sediments, bubbles<br />

of hydrogen sulphide or a<br />

significant reduction in the<br />

presence of animal tracks, or<br />

bioturbator burrows, relative to<br />

reference sites<br />

If EQG (i) and/or (ii) is exceeded<br />

and the exceedance is based on<br />

the high protection guideline<br />

(80%ile):<br />

Proceed to EQS for high and<br />

maximum protection<br />

Sediment infauna community species<br />

richness, based on the Inverse Simpson<br />

Index, not to be half that of background<br />

(indicative of minor impact)<br />

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 33

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