Assume that the fish have an average mass of 280g. The average caloric value is 8kcal/g. The heron
is able to digest 60% of the fishes’ mass. How many will it need to eat to sustain its caloric intake of
3,000kcal/day?
3000kcal/day / (280g/fish * 8kcal/g * 60%) = 2.2 fish/day
Thank you SO much
To calculate the number of fish a heron needs to eat to sustain its caloric intake of 3,000 kcal/day, we need to follow these steps:
Step 1: Determine the total caloric value the heron needs per day
The heron's caloric intake goal is 3,000 kcal/day.
Step 2: Calculate the total mass of fish the heron needs to eat
Since the heron can digest 60% of the fish's mass, we can calculate the mass of fish needed to meet the caloric intake as follows:
Caloric intake needed = Caloric value per gram x Mass of fish x Percentage of fish digestible
3,000 kcal = 8 kcal/g x Mass of fish x 0.6
Step 3: Solve for the Mass of fish needed
Dividing both sides of the equation by (8 kcal/g x 0.6), we get:
Mass of fish = 3,000 kcal / (8 kcal/g x 0.6)
Step 4: Calculate the number of fish needed
To calculate the number of fish, we need to divide the total mass of fish needed by the average mass of each fish:
Number of fish = Mass of fish / Average mass of fish
Number of fish = (3,000 kcal / (8 kcal/g x 0.6)) / 280 g
Now you can substitute the given values into the equation and solve for the number of fish the heron needs to eat to sustain its caloric intake of 3,000 kcal/day.