Marine Produce Australia: Cone Bay Barramundi Aquaculture ...

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Table 4.2 EQG for water quality EQG Indicator Shading & smothering Algal growth potential TSS (LOI) LAC DIN Toxicants Ammonia Phytoplankton biomass Chlorophyll-a N/A Zone of Ecological Protection Moderate High Maximum 8 (i) Median organic fraction of TSS calculated from pooled sites, on each sampling occasion, must be less than the 80%ile or 95%ile of Reference Site data*, or (ii) Median organic fraction of TSS over a four month period, at any site, must be less than the 80%ile or 95%ile of Reference Site data* (i) Median LAC calculated from pooled sites, on each sampling occasion, must be less than the 80%ile or 95%ile of Reference Site data*, or (ii) Median LAC over a four month period, at any site, must be less than the 80%ile or 95%ile of Reference Site data* Collected for contextual purposes (i) 95%ile 9 of total ammonia (50 cm from bottom) calculated from pooled sites, on each sampling occasion, not to exceed 1200 μg/L or 500 μg/L*, or (ii) 95%ile of total ammonia (50 cm from bottom), at any site, calculated over a four month period, not to exceed 1200 μg/L or 500 μg/L* (i) Median organic fraction of TSS calculated from pooled sites, on each sampling occasion, must be less than the 80%ile of Reference Site data, or (ii) Median organic fraction of TSS over a four month period, at any site, must be less than the 80%ile of Reference Site data (i) Median LAC calculated from pooled sites, on each sampling occasion, must be less than the 80%ile of Reference Site data, or (ii) Median LAC over a four month period, at any site, must be less than the 80%ile of Reference Site data Collected for contextual purposes (i) 95%ile of total ammonia (50 cm from bottom) calculated from pooled sites, on each sampling occasion, not to exceed 500 μg/L, or (ii) 95%ile of total ammonia (50 cm from bottom) at any site, calculated over a four month period, not to exceed 500 μg/L Median chl-a calculated from pooled sites, on each sampling occasion must be less than 3 x 50%ile of Reference Site data (i) Median organic fraction of TSS calculated from pooled sites, on each sampling occasion, must be less than the 70%ile of Reference Site data, or (ii) Median organic fraction of TSS over a four month period, at any site, must be less than the 70%ile of Reference Site data (i) Median LAC calculated from pooled sites, on each sampling occasion, must be less than the 70%ile of Reference Site data, or (ii) Median LAC over a four month period, at any site, must be less than the 70%ile of Reference Site data Collected for contextual purposes (i) 95%ile of total ammonia (50 cm from bottom) calculated from pooled sites, on each sampling occasion, not to exceed 250 μg/L, or (ii) 95%ile of total ammonia (50 cm from bottom) at any site, calculated over a four month period, not to exceed 250 μg/L Median chl-a calculated from pooled sites, on each sampling occasion must be less than 2 x 50%ile of Reference Site data 8 Note that the EQG for Maximum Ecological Protection (70 th percentile) has been modified (from that in Condition 5- 3.3) in consultation with the OEPA (verbal advice 16/12/2010). While it is understood that the EQG trigger for Maximum protection needs to be more conservative than those for High and Moderate protection, the 70 th percentile is expected to lie within 1 standard deviation of the mean (given reasonable numbers of samples), and is therefore likely to be well within the range of natural variability. In using the 70 th percentile, there is considerable potential to make the equivalent of a Type I error (i.e. false positive), thus triggering the EQG for Maximum protection as a result of natural perturbations, and not those resulting from the proposal. To this end, it is recommended that the suitability of the EQG trigger for Maximum protection be evaluated at the end of the EMMP review period. 9 It is noted that at least 20 samples is recommended for calculation of the 95th percentile (ANZECC/ARMCANZ 2000). Calculation of the EQG following each sampling occasion, and for individual sites, should therefore be interpreted with caution. 18 Oceanica: Marine Produce Australia: Cone Bay Barramundi Aquaculture, Environmental Monitoring & Management Plan
EQG Indicator Physical & chemical stressors DO Zone of Ecological Protection Moderate High Maximum 8 (i) Median bottom water DO on each sampling occasion must be greater than 80% or 90% saturation*; or (ii) Median bottom water DO at any site calculated over a four month period must be greater than 80% or 90% saturation* (i) Median bottom water DO on each sampling occasion must be greater than 90% saturation; or (ii) Median bottom water DO at any site over a four month period must be greater than 90% saturation Notes: * The actual percentile used will depend on the positioning of sea-cages relative to the MEPA/HEPA boundary (see Section 5.1) Environmental Quality Standards The EQS for water quality are provided in Table 4.3. EQS have been applied differently in recognition of the different benthic habitats in the MEPA compared to the HEPA and MaxEPA. For example, the potential for shading as indicated by levels of chlorophyll-a and/or LAC is unlikely to cause long-term harm to MEPA MPB communities. HEPA and MaxEPA coral communities are, on the other hand, relatively sensitive and may exhibit signs of stress following periods of shading. Following this logic, LAC and chlorophyll-a EQS have been developed for use in the HEPA and MaxEPA, but not in the MEPA. The EQS for the HEPA and MaxEPA are based on indicators of minor change, including: � Sediments � Conservative indices of infauna species richness (five x reduction) � Mortality of benthic macrofauna 10 � Coral habitat � Loss of coral pigmentation � Presence of coral mucous The EQS for the MEPA are based on indicators of moderate to severe change in sediment communities, including: � Less conservative indices of infauna species richness (one x reduction) � Presence of bacterial mats � Bubbles of hydrogen sulphide � Mass mortality of benthic macrofauna � Reduction in animal tracks and/or the number of bioturbation burrows For details on how to apply the EQS (particularly those listed beneath moderate protection), refer to Section 5.1. 10 Although not a sensitive indicator relative to indices of infauna species richness, mass mortality of benthic macrofauna will be used as a supplementary indicator Oceanica: Marine Produce Australia: Cone Bay Barramundi Aquaculture, Environmental Monitoring & Management Plan 19
Page 1: Marine Produce Australia: Cone Bay
Page 5 and 6: Client: Marine Produce Australia Re
Page 7 and 8: Contents 1.� Purpose of this docu
Page 9: List of Figures Figure 1.1� Locat
Page 12 and 13: Table 1.1 Environmental Values and
Page 14 and 15: In addition to the Conditions and C
Page 17: Note: The habitats shown above are
Page 20 and 21: 2.3.1 Site selection Aquaculture ca
Page 22 and 23: 3. Environmental Objectives 3.1 Bes
Page 24 and 25: 4. Marine Monitoring Program Fish-f
Page 26 and 27: the bottom of the water column. Sta
Page 30 and 31: Table 4.3 EQS for water quality EQS
Page 32 and 33: 4.2 Sediment quality monitoring 4.2
Page 34 and 35: Table 4.5 EQG for sediments EQG Ind
Page 36 and 37: 4.3 Coral reef monitoring 4.3.1 Obj
Page 38 and 39: Indicator Light attenuation Chlorop
Page 40 and 41: 4.4 Sediment infauna monitoring 4.4
Page 42 and 43: Indicator Zone of Ecological Protec
Page 44 and 45: 4.5 Biota monitoring and management
Page 46 and 47: 5. Marine Environmental Management
Page 48 and 49: Monitor Are�any�sea-cages�wit
Page 50 and 51: sample median calculated. However,
Page 52 and 53: EQG�(i)�or�(ii)� exceeded T
Page 54 and 55: 5.4.2 Movement of stock Movement or
Page 56 and 57: 7. Stakeholder Consultation 7.1 Det
Page 58 and 59: 8. Additional information Additiona
Page 60 and 61: � Administer all prescribed medic
Page 62 and 63: Category Issue Consequence Likeliho
Page 65 and 66: 9. Acknowledgements This EMMP was p
Page 67 and 68: EPA (2008) Report and recommendatio
Page 69: Appendix A Ministerial Statement 79
Page 72 and 73: 2 Proponent Nomination and Contact
Page 74 and 75: 2. Within the zone of High Ecologic
Page 76 and 77: The Proposal (Assessment No. 1642)
Page 78 and 79:
Figure 1: Zones of ecological prote
Page 81:
Appendix B Method Statement: Geo-re
Page 84 and 85:
Report No. OCEMPA001 Rev A Revision
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1. Introduction Geo Oceans was comm
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efore smoothly decreasing to zero a
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Table 3 Data fields captured in the
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3. Results A total of 27332 rows of
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Figure 3 Hard coral percent cover d
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Appendix 2: Video analysis substrat
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Proposed Seagrass, water quality an
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Appendix E Responses to comments re
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Version Author Authority Comment MP
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