2016-02-02 P&O Committee - Item 3 - Attachment 3 - Noosa River Environmental Values and Water Quality Objectives

Noosa River environmental values and water quality objectives




Table 6 Aquaculture EV: Water quality objectives for tropical aquaculture

                                      Recommended range                                             Recommended range
                                     Freshwater Marine                                                General aquatic
        Water parameter                                                Water parameter
  Dissolved oxygen                      >4mg/L         >4mg/L         Arsenic                              <0.05mg/L
                0
  Temperature C                          21–32         24–33          Cadmium                             <0.003mg/L
  pH                                    6.8–9.5         7–9.0         Calcium/Magnesium                   10–160mg/L
  Ammonia (TAN, total
  ammonia-nitrogen)                    <1.0mg/L       <1.0mg/L        Chromium                           <0.1mg/L
  Ammonia (NH3, un-ionised             <0.1mg/L       <0.1mg/L        Copper                       <0.006mg/L in soft water
  form)
  Nitrate (NO3)                       1–100mg/L        1–100          Cyanide                             <0.005mg/L
                                                        mg/L
  Nitrite (NO2)                       <0.1mg/L        <1.0mg/L        Iron                                 <0.5mg/L
  Salinity                             0–5ppt         15–35 ppt       Lead                                <0.03mg/L
  Hardness                           20–450mg/L                       Manganese                           <0.01mg/L
  Alkalinity                           20–400         >100mg/L        Mercury                            <0.00005mg/L
                                        mg/L
  Turbidity                           <80 NTU                         Nickel                       <0.01mg/L in soft water
                                                                                                   <0.04mg/L in hard water
  Chlorine                           <0.003mg/L                       Tin                                <0.001mg/L
  Hydrogen sulphide                  <0.002mg/L                       Zinc                       0.03–0.06 mg/L in soft water
                                                                                                    1–2 mg/L in hard water

Source: Department of Primary Industries and Fisheries - Water Quality in Aquaculture—DPI Notes April 2004.

Table 7 Aquaculture EV: Water quality objectives for optimal growth of particular species in
freshwater
  Water parameter   Barramundi       Eel      Silver perch     Jade perch Sleepy cod        Redclaw
Dissolved oxygen      4–9mg/L      >3mg/L        >4mg/L          >3mg/L       >4.0mg/L      >4.0mg/L
                  0
Temperature C                  26–32           23–28             23–28              23–28             22–31          23–31
pH                            7.5–8.5         7.0–8.5            6.5–9              6.5–9            7.0–8.5        7.0–8.5
Ammonia (TAN,
Total ammonia-                               <1.0mg/L                                               <1.0mg/L       <1.0mg/L
nitrogen)
Ammonia (NH3, un-
ionised form)*pH            <0.46mg/L        <0.1mg/L           <0.1mg/L          <0.1mg/L          <0.1mg/L       <0.1mg/L
dependent.
Nitrate (NO3)                                                   <100mg/L
Nitrite (NO2)                <1.5mg/L        <1.0mg/L           <0.1mg/L                            <1.0mg/L       <1.0mg/L
Salinity (extended
                              0–35ppt                             <5ppt             <5ppt                              <4ppt
periods)
                                                            5–10ppt for 1                          max. 20ppt
Salinity bath                 0–35ppt
                                                                hour                               for 1 hour
Hardness (CaCO3)                                              >50 mg/L            >50 mg/L          >40mg/L        >40mg/L
Alkalinity                   >20mg/L                        100–400 ppm         100–400 ppm         >40mg/L        >40mg/L
Chlorine                    <0.04mg/L                                                              <0.04mg/L
Hydrogen sulphide           0–0.3mg/L                                                              0–0.3mg/L
Iron                        <0.1mg/L                            <0.5mg/L          <0.5mg/L         <0.1mg/L        <0.1mg/L
Spawning                                                                                          >24 for more
                               Marine                            23–28              23–28
temperature                                                                                       than 3 days

Source: Department of Primary Industries and Fisheries - Water Quality in Aquaculture—DPI Notes April 2004.




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