includes one full time employee in charge of the copepod culture
system (37 hours/week), 2 hours per day for production of the
algae 7 days a week (14 hours/week) and 2 hours per day for administrative
matters 5 days a week (10 hours/week), a total of
61 hours/week. To get the yearly cost of salary, the hours/week is
multiplied with 52 weeks and then the salary per hour.
iii. The facility is a part of already existing buildings paying a rent of 200
euros per m2 per year.
iv. The running costs for RAS, APR and DL covers the costs needed to run
each respective system for one year.
v. Maintenance cost is the cost incurred for maintenance of the system
per year.
The labor cost accounted for 38% of the annual cost of production
and is the single most important cost item. The second and third largest
cost items are interest payment and the depreciation of assets, which
accounted for 20% and 15%, respectively. Overall, the variable costs covered
65% of the total annual production costs, whereas the fixed costs
accounted for 35%.