Marine Produce Australia: Cone Bay Barramundi Aquaculture ...
Marine Produce Australia: Cone Bay Barramundi Aquaculture ...
Marine Produce Australia: Cone Bay Barramundi Aquaculture ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Table 8.1 Risk matrix – numbers in cells indicate risk value, the colours/shades indicate risk<br />
rankings (from Fletcher et al. 2004).<br />
Consequence<br />
Likelihood Negligible Minor Moderate Severe Major Catastrophic<br />
0 1 2 3 4 5<br />
Remote 1 0 1 2 3 4 5<br />
Rare 2 0 2 4 6 8 10<br />
Unlikely 3 0 3 6 9 12 15<br />
Possible 4 0 4 8 12 16 20<br />
Occasional 5 0 5 10 15 20 25<br />
Likely 6 0 6 12 18 24 30<br />
Table 8.2 Risk rankings and outcomes (from Fletcher et al. 2004)<br />
Risk rankings Risk values Likely management response Likely reporting requirements<br />
Negligible 0 Nil Short Justification only<br />
Low 1 – 6 None specific Full justification needed<br />
Moderate 7 – 12 Specific management needed Full performance report<br />
High 13 – 18<br />
Possible increases to<br />
management activities<br />
Full performance report<br />
Extreme > 19<br />
Likely additional management<br />
activities<br />
Full performance report<br />
Table 8.3 Summary of issues & risk rankings<br />
Category Issue Consequence Likelihood<br />
Water quality<br />
Sediment<br />
quality<br />
Nutrient enrichment of<br />
water in immediate<br />
vicinity of cages (inside<br />
10m) due to farm<br />
activities<br />
Nutrient enrichment of<br />
water on the aquaculture<br />
site (outside 10m<br />
from cages) due to farm<br />
activities<br />
Nutrient enrichment of<br />
water outside aquaculture<br />
site due to farm<br />
activities<br />
Pollution from chemical<br />
inputs and fuel spills<br />
Nutrient enrichment of<br />
sediment in immediate<br />
vicinity of cages (inside<br />
30m) due to fallout from<br />
farm activities<br />
Nutrient enrichment of<br />
sediment on the<br />
aquaculture site (outside<br />
30m from cages) due to<br />
fallout from farm<br />
activities<br />
Nutrient enrichment of<br />
sediment outside<br />
aquaculture site due to<br />
fallout from farm<br />
activities<br />
Pollution of sediments<br />
from chemical inputs<br />
and fuel spills<br />
Risk<br />
Ranking<br />
Ranking<br />
0 5 0 Negligible<br />
0 0 0 Negligible<br />
1 0 0 Negligible<br />
1 1 1 Low<br />
3 4 12 Moderate<br />
2 1 2 Low<br />
2 0 0 Negligible<br />
1 1 1 Low<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 51