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🐟 Fish are gathering at the water surface                                                        🍽️ Fish are not eating well

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🐟 Fish are gathering at the water surface                                                        🍽️ Fish are not eating well

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🐟 Water has bad smell                                              💩 Uneaten feed can be seen in the pond

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🐟 Water has bad smell                                              💩 Uneaten feed can be seen in the pond

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Divide students into group of 5-6 members

Each group will handle ONE scenario

Ensure each member has a role

Students are required to perform a role play based on a real aquaculture situation

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Discuss your scenario and identify:

Water quality problem

Cause of problem

Effect on fish

Suitable solution

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Perform a short role play (discussion simulation)

Each member must speak based on their role

Keep it short, clear and realistic

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Discussion: 30 minutes

Padlet submission: 20 minutes

Presentation: 5 minutes per group

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Each group MUST include:

1. Group Name

2. Scenario Title

3. Water Quality Problem (Parameter)

4. Cause of Problem

5. Effect on Fish

6. Suggested Solution

7. Role Play Summary (2-3 sentences)

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1 group = 1 post

Include

Members + roles

Key points (short & clear)

Optional: photo / video for your acting

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Each member must take ONE role:

Farm Manager -> Decision Making

Make final decision

Choose best solution

Water Quality Technician -> Analysis

Identify parameter (DO, pH, temperature, etc.)

Explain reading

Fish Health Specialist -> Impact

Explain fish behaviour

Identify symptoms

Operations Staff -> Solution

Suggest actions (aerator, water exchange, etc)

Environmental Officer -> Sustainability

Explain environmental impact

Suggest long-term control

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Your answer must include:
✔ Parameter (e.g., DO, pH, ammonia)
✔ Effect on fish
✔ Management solution

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Members & Roles:

Ali – Farm Manager

Siti – Technician

John – Fish Specialist

Mira – Operations

Adam – Environmental

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🐟 Fish suddenly become very active, then weak                                                   🌡️ Weather has been very hot for the past few days

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🐟 Fish suddenly become very active, then weak                                                   🌡️ Weather has been very hot for the past few days

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🐟 Freshwater fish suddenly show stress                                                           💧 Water source recently changed

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🐟 Freshwater fish suddenly show stress                                                           💧 Water source recently changed

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🌫️ Water becomes very cloudy                               ☀️ Light cannot penetrate into the pond

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🌫️ Water becomes very cloudy                               ☀️ Light cannot penetrate into the pond

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🐟 Fish growth is very slow                                          💧 Water condition seems abnormal     

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🐟 Fish growth is very slow                                          💧 Water condition seems abnormal     

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🎯 Your Task

Based on the situation given, you are required to:

1. Identify the water quality problem

2. Explain the cause of the problem

3. Describe the effect on fish

4. Suggest a suitable solution

🎭 Role Play

Discuss within your group

Each member must speak based on their role

⚠️ Reminder:
Do NOT guess. Use your knowledge from Chapter 3

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🎯 Your Task

Based on the situation given, you are required to:

1. Identify the water quality problem

2. Explain the cause of the problem

3. Describe the effect on fish

4. Suggest a suitable solution

🎭 Role Play

Discuss within your group

Each member must speak based on their role

⚠️ Reminder:
Do NOT guess. Use your knowledge from Chapter 3

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🎯 Your Task

Based on the situation given, you are required to:

1. Identify the water quality problem

2. Explain the cause of the problem

3. Describe the effect on fish

4. Suggest a suitable solution

🎭 Role Play

Discuss within your group

Each member must speak based on their role

⚠️ Reminder:
Do NOT guess. Use your knowledge from Chapter 3

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🎯 Your Task

Based on the situation given, you are required to:

1. Identify the water quality problem

2. Explain the cause of the problem

3. Describe the effect on fish

4. Suggest a suitable solution

🎭 Role Play

Discuss within your group

Each member must speak based on their role

⚠️ Reminder:
Do NOT guess. Use your knowledge from Chapter 3

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🎯 Your Task

Based on the situation given, you are required to:

1. Identify the water quality problem

2. Explain the cause of the problem

3. Describe the effect on fish

4. Suggest a suitable solution

🎭 Role Play

Discuss within your group

Each member must speak based on their role

⚠️ Reminder:
Do NOT guess. Use your knowledge from Chapter 3

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🎯 Your Task

Based on the situation given, you are required to:

1. Identify the water quality problem

2. Explain the cause of the problem

3. Describe the effect on fish

4. Suggest a suitable solution

🎭 Role Play

Discuss within your group

Each member must speak based on their role

⚠️ Reminder:
Do NOT guess. Use your knowledge from Chapter 3

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During your role play:

Select the correct device image provided

Show it during your presentation

Explain how the device is used

⚠️ You must choose the correct device based on your problem.

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During your role play:

Select the correct device image provided

Show it during your presentation

Explain how the device is used

⚠️ You must choose the correct device based on your problem.

# data[].attributes.body
During your role play:

Select the correct device image provided

Show it during your presentation

Explain how the device is used

⚠️ You must choose the correct device based on your problem.

# data[].attributes.body
During your role play:

Select the correct device image provided

Show it during your presentation

Explain how the device is used

⚠️ You must choose the correct device based on your problem.

# data[].attributes.body
During your role play:

Select the correct device image provided

Show it during your presentation

Explain how the device is used

⚠️ You must choose the correct device based on your problem.

# data[].attributes.body
During your role play:

Select the correct device image provided

Show it during your presentation

Explain how the device is used

⚠️ You must choose the correct device based on your problem.

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Problem:
Dissolved oxygen is low (2 mg/L)

Cause:
High feeding and respiration reduced oxygen level

Effect on Fish:
Fish are gasping at the surface and not eating

Solution:

Install aerator

Reduce feeding

Improve water circulation

🎭 Role Play Summary:
Technician reported low DO, specialist explained fish stress, and manager decided to install aeration immediately.

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Farm Manager - Zarif

Water Quality Technician - Irwan

Fish Health Specialist - Aiman

Operation Staff - Amir

Environment Officer - Dayang

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Farm Manager : Aizrin

Technician : Faris

Fish Specialist : Muzafar

Operations : Fina

Environmental : Liya

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Members & Roles.

• Qairry - Manager

• Hakimi - Technician

• Irfan - Specialist

• Liew - Operation

• Fuad - Environmental

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members and roles:

1 IMRAN - FARM MANAGER

2 MAISARAH - ASSISTANT MANAGER

3 DINI - TECHNICIAN

4 ATIQAH - FISH SPECIALIST

5 FITRI - OPERATION STAFF

6 ZUL - ENVIROMENTAL OFFICER

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Farm manager - Hilman

Water Quality Technician - Syafiah ( peah )

Fish health Specialist- Iman

Operation Staff - Yasmin

Environmental officer - Alya

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Water quality problem : High Turbidity

Cause of Problem : Excess feed or fish waste Algae bloom or plankton overgrowth Soil disturbance from fish activity or rain Poor water management.

Effect on Fish : Low oxygen (DO decreases) Fish become stressed

Reduced feeding and slow growth

Risk of disease or death

Difficulty for fish to see

food

Suggested Solution : Use aerator to increase oxygen

Do partial water exchange

Reduce feeding amount

Remove excess waste/sludge

Monitor water quality regularly

Roleplay Summary : Technician reported low oxygen level.

Specialist explained fish are stressed and gasping.

Manager decided to install aerator and reduce feeding.

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Problem :

High Ammonia

Cause :

Over feeding and waste accumulation

Effect on Fish :

stress

potential death

reduce growth

Solution :

remove remaining excess excreted

change water regularly

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Farm Manager

Nurul Afiqah Binti Jol

Water Quality Technician

Isabella Betrisha

Fish Health Specialist

Dexter Hayden Johnny

Operation Staff

Ariell Amyza Bin Abdullah

Environmental Officer

Siti Nor Zahira

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Problem :

Dissolved oxygen is low

Cause :

1. Poor aeration

2. Overfeeding

Effect on fish :

1. Fish are gathering at the water surface

2. Fish are not eating well

Solution :

1. Increase aeration

2. Reduce feeding

Role play summary :

Technician reported low DO , specialist explained fish stress , and manager decided to increase aeration immediately, environmental officer suggest long term control, operations staff monitor fish and water conditions, maintain equipment and take quick action.

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Problem:

High water temperature

Cause:

Temperature too hot and low of oxygen

Effect on fish:

High metabolism means fish required more oxygen demand

Solution

-add shade

-install aeration

Role play summary:

TECHNICIAN report high temperature,specialist explained fish metabolism is high and need more oxygen,manager decide to install black net for shade and install aeration.

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Problem:

Water salinity is too high.

Causes:

Compound of undergrounds minerals

Mixing between the seawater and freshwater

Effects on fish:

Fish may die because they cannot tolerate the salinity.

Solution:

Liming to reduce salinity of the water

Temperature control to reduce evaporation.

Effective Microorganism (EM) to breakdown salt ions.

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Problem:

pH is low (6 acid)

Cause:

rain falls into a fish pond and the fish pond will become acidic so it causes slow fish growth

Effect on Fish:

Fish growth slows down

Solution:

• Stabilize the pH of the water by adding limestone

• Installing a translucent roof

🎭 Role Play Summary:

Technician reported low reading pH, specialist explained fish behavior, environment officer suggested long-term controo and manager decided to stabilize the pH of the water