Modelling of Organic Deposition Derived from Fish Farms on The Fresh Waters

International Agricultural Science Congress, Van, Türkiye, 9 - 12 Mayıs 2018, cilt.000, sa.0, ss.175

Generally, monitoring and modelling using software of

environmental pollution depending upon net-pen operations have been

started to study since 1990‟s. In many countries, different modelling trials

using some softwares relating to farms of fish and other marine species have

made up till now. However, establishment permits are confirmed based on

results of modelling studies of cage farms in many countries in Europe.

Modelling studies are crucial to estimate environmental impacts of existing

fish farms and potential effects of future farms. In this study, practicability

of a commercial computer software using frequently for modelling on netpens

was investigated (MERAMOD). For this purpose, especially trout

farms operating on the fresh waters were planned. Some characteristics such

as current speeds, current directions, depth, stocking rates and feeding rates

per cage are essential for simulations of organic deposition. All data

regarding farm and cage area are input into the each of four software

modules and then data sets are transferred to another software called Surfer.

In this way, „foot print‟ of organic accumulation derived from cage farms

can be constituted to evaluate. Further studies, simulations can be validated

using different types of sediment traps. With this study, potential

environmental effects of existing farms on the fresh waters of Turkey can be

predicted and also similar studies can be a useful tool for determining

environmentally acceptable locations of future farms.