TABLE 11: ENVIRONMENTAL QUALITY INDICATORS AND OBJECTIVES FOR AQUACULTURE Pathogens Physico-chemical stressors Toxicant levels for the protection of Off-flavour compounds aquaculture species Total Faecal (thermotolerant) coliforms (median from 5 samples) PA TA OFC 14 orgs/100mL TABLE 12: WEIGHT OF EVIDENCE TOXICANT RISK SCORING SYSTEM Line of evidence Indicator or Ranking segment 3 - high risk 2 - medium risk 1 - low risk Chemistry Toxicants Concentration > 90% Concentration > 95% but Concentration < 95% <90% Water Toxicants Concentration > High Concentration > Low but < Concentration < Low High Sediment Toxicants Concentration > 90% Concentration > 95% but Concentration < 95% <90% Pore water Ecotoxicity Sediment and / Significant difference Significant difference No significant difference or water (P<0.05) and >50% (P<0.05) and 20-50% (P<0.05) and <20% effect vs control effect vs control effect vs control Ecology Rivers and -AUSRIVAS band C -AUSRIVAS band B -AUSRIVAS band A streams -SIGNAL >0.5 below -SIGNAL <0.5 below -Meets SIGNAL below objectives objectives objectives Wetlands VLAKES index >0.5 VLAKES index <0.5 below VLAKES index meets below objectives objectives objectives Marine and Significant and high Significant and moderate No significant effects on Estuaries effects on effects on abundance abundance and/or abundance and/or and/or diversity diversity diversity Bioaccumulation Significant difference Significant difference Not significantly different (P<0.05) and >3x (P<0.05) and <3x from control control control Biomarkers Significantly different Moderate but significant Not significantly different from control difference from from control control Other lines of evidence Significantly difference Moderate but significant Not significantly different from control difference from from control control Weight of evidence assessment High risk of significant Medium risk of adverse Low risk of adverse effects – adverse effects effects meets environmental quality objectives for the protection of beneficial uses 6. Water based recreation (1) The protection of the beneficial use of water-based recreation is measured using long-term and short-term environmental quality indicators and objectives.
TABLE 11: ENVIRONMENTAL QUALITY INDICATORS AND OBJECTIVES FOR AQUACULTURE Pathogens Physico-chemical stressors Toxicant levels for the protection of aquaculture species Off-flavour compounds Total Faecal (thermotolerant) coliforms (median from 5 samples) 14 orgs/100mL PA TA OFC TABLE 12: WEIGHT OF EVIDENCE TOXICANT RISK SCORING SYSTEM Line of evidence Indicator or segment Ranking 3 - high risk 2 - medium risk 1 - low risk Chemistry Toxicants Water Concentration > 90% Concentration > 95% but <90% Concentration < 95% Toxicants Sediment Concentration > High Concentration > Low but < High Concentration < Low Toxicants Pore water Concentration > 90% Concentration > 95% but <90% Concentration < 95% Ecotoxicity Sediment and / or water Significant difference (P<0.05) and >50% effect vs control Significant difference (P<0.05) and 20-50% effect vs control No significant difference (P<0.05) and <20% effect vs control Ecology Rivers and streams -AUSRIVAS band C -SIGNAL >0.5 below objectives -AUSRIVAS band B -SIGNAL <0.5 below objectives -AUSRIVAS band A -Meets SIGNAL below objectives Wetlands VLAKES index >0.5 below objectives VLAKES index <0.5 below objectives VLAKES index meets objectives Marine and Estuaries Significant and high effects on abundance and/or diversity Significant and moderate effects on abundance and/or diversity No significant effects on abundance and/or diversity Bioaccumulation Significant difference (P<0.05) and >3x control Significant difference (P<0.05) and <3x control Not significantly different from control Biomarkers Significantly different from control Moderate but significant difference from control Not significantly different from control Other lines of evidence Significantly difference from control Moderate but significant difference from control Not significantly different from control Weight of evidence assessment High risk of significant adverse effects Medium risk of adverse effects Low risk of adverse effects – meets environmental quality objectives for the protection of beneficial uses 6. Water based recreation (1) The protection of the beneficial use of water-based recreation is measured using long-term and short-term environmental quality indicators and objectives.
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