Sunlight needs depend on how you plan to use the pond. In many cases, farm ponds can be placed in full sun. This will encourage healthy plant and plankton growth, which helps keep the pond’s ecosystem thriving. Aquaculturists looking to grow rooted plants will most often need full sun and shallow to moderate depth so that sunlight can reach to the base of the grown plants.
Part shade can also work for fishing ponds because the shady areas can help make fish more comfortable. Bear in mind that the shaded portions will produce less plant life. Ponds should never be placed in full shade, as they’ll stagnate quickly.