How to Calculate Dilution of Seawater for Fish Cultivation
How can we calculate the dilution of seawater needed for fish cultivation?
Ms. Sison has 350 liters of seawater with a salinity of 38 ppt. She needs a 20 ppt. salinity for the cultivation of milkfish in aquaria with a capacity of 1 tonne. How much freshwater is needed for the dilution?
Calculating the Dilution of Seawater
To calculate the dilution of seawater needed to achieve a salinity of 20 ppt, we can use the formula:
C1V1 = C2V2
Where:
C1 = initial concentration (salinity) of seawater (38 ppt)
V1 = initial volume of seawater (350 liters)
C2 = final concentration desired (20 ppt)
V2 = final volume of diluted seawater
By the calculation, approximately 665 liters of freshwater need to be added to the 350 liters of seawater to obtain a total volume of diluted seawater with a salinity of 20 ppt.
The volume produced with a salinity of 20 ppt is also approximately 665 liters.
When cultivating fish like milkfish, it is essential to ensure the salinity of the water is at the optimum level for their growth and development. In this case, Ms. Sison needed to dilute the seawater from 38 ppt to 20 ppt to create a suitable environment for the milkfish.
By using the dilution formula C1V1 = C2V2, Ms. Sison was able to calculate that she needed to add approximately 665 liters of freshwater to the existing 350 liters of seawater to achieve the desired salinity of 20 ppt. This step is crucial in creating a balanced ecosystem for the fish to thrive.
Additionally, the calculation of the volume produced with a salinity of 20 ppt helps in understanding how much water will be available for the fish to inhabit. With a total volume of approximately 665 liters of diluted seawater, Ms. Sison can ensure that the milkfish have enough space to grow and move comfortably within the aquaria.
By maintaining the right salinity level and providing adequate water volume, Ms. Sison can create an ideal environment for the milkfish cultivation. This attention to detail and precise calculations are key to successful aquaculture practices and ensuring the well-being of the fish.