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Elements and Performance Criteria

1. Prepare for manipulation of culture or holding environment
   • Confirm with supervisor water quality parameter to be adjusted
   • Collect required water treatment materials, equipment and personal protective equipment, and check for serviceability
   • Observe water and environmental conditions that could adversely impact stock, and report to supervisor
2. Manipulate culture or holding environment
   • Apply water treatment safely and in accordance with work health and safety (WHS), food safety, biosecurity and environmental regulations, stock requirements and supervisor instructions
   • Observe stock behaviour and use work practices that minimise stock stress and damage
   • Check water parameters manipulated against stock requirements
3. Complete activities after the environment has been manipulated
   • Clean work area and dispose of waste materials safely according to workplace procedures
   • Check and store tools and equipment, reporting any identified repair requirements to supervisor
   • Record relevant data and observations, and report any abnormal records to supervisor

Performance Evidence

An individual demonstrating competency must satisfy all of the elements and performance criteria in this unit.

There must be evidence that the individual has manipulated the stock culture environment on at least one occasion, including:

communicating with and reporting to supervisor on manipulating the stock culture environment

preparing and safely applying basic water treatment using appropriate water treatment materials, equipment and personal protective equipment

monitoring culture and holding environments to ensure optimal conditions for rearing stock, while adhering to workplace health and safety, food safety, biosecurity and environmental regulations

completing accurate observation records to demonstrate compliance with workplace procedures

cleaning up work area and storing tools and equipment after environment manipulation activities.

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Knowledge Evidence

An individual must be able to demonstrate the knowledge required to perform the tasks outlined in the elements and performance criteria of this unit. This includes knowledge of:

use and purpose of basic water quality tests

features of basic water quality and environmental factors that can impact stock

effects of water and culture conditions on stock

key characteristics of normal and abnormal stock behaviour

methods and techniques for manipulating stock culture or holding environments

main reasons for manipulating the stock culture environment

safe work practices and biosecurity measures used when manipulating stock culture and holding environments.

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