Is Zakat obligatory on a fish farming project in river ponds for the purpose of selling after 6-8 months, and what are the Sharia regulations for this business?

A commercial fishing project is subject to zakat on trade goods. This is done by calculating the invested capital. Once a year has passed, the value of the existing fish and the price of what was sold from them are assessed, and zakat is paid on the total at a rate of 2.5%, provided that the capital reaches the نصاب (minimum threshold) of gold or silver. To this is added any debts owed to you by a solvent and acknowledging debtor, and any debts you owe are subtracted, unless you possess non-zakat-able funds sufficient to cover the debt. Zakat is not obligatory on the fixed assets of the project, such as machinery, furniture, refrigeration equipment, and vehicles.