Att 3 - Site Based Management · MCU17/0020

                                                     levels. If above +50mv check
                                                     oxygen level in tank to ensure it is
                                                     <2mg/l check flow rate to ensure
                                                     there is a 2hr dwell time
 Carbon Dioxide CO2 N/A                20mg/l        Check maintenance log to Ensure
                                                     probe has been recalibrated to
                                                     manufacturers recommendations.
                                                     Check protein skimmer and MBBR
                                                     for correct air flow to ensure CO2
                                                     is being gassed off.
 Dissolved Oxygen       4mg/l          N/A           When low set point triggered turn
                                                     on manual bottled oxygen to feed
                                                     oxygen into emergency diffusers in
                                                     grow tanks immediately. Check
                                                     oxygen generator for correct
                                                     operation. Check water flow is
                                                     sufficient in grow tank that has low
                                                     oxygen. Clean oxygen probe,
                                                     check membrane for damage and
                                                     check maintenance log to ensure
                                                     probe has been calibrated to
                                                     manufacturers recommendations.
 Salinity               13ppt          22ppt         Check storage tank to ensure
                                                     supply water is correct salinity then
                                                     adjust accordingly
 Temperature            25C            33C           Check heater/ chiller for correct
                                                     operation


6 Biosecurity
6.1 Animal source

Animals should be obtained from disease-free farms or sources only, after appropriate health
testing and disease-free certification by a reputable veterinary laboratory; disinfect eggs or
larvae where appropriate, quarantine (isolate) all animal introductions from the rest of the farm
for an appropriate period of time. The length of quarantine time depends on the species of
aquatic animal and potential disease or parasite. Contact DPI&F veterinary and extension
officers for advice.
b) Seek advice on appropriate preventative treatments for parasites to all introduced animals
while still in quarantine.

6.2 Hygiene

a) Seek advice on the disinfection of eggs or larvae prior to use.
b) Remove sick and dying animals as soon as possible and treat in a quarantine section or
dispose of appropriately, so there is no contamination of the farm animals or aquatic
environment.