What you need to know about Nile Perch Fish
The Nile perch Lates niloticus is a large freshwater fish found extensively in the rivers
and lakes of Africa. Also known as capitaine, mputa or sangara, it can grow up to 200 kg and
two metres in length. It is a predator, and lives and feeds throughout the water column.
main attractions as a food fish are its abundance, ease of catching with a variety of
artisanal and industrial techniques, its large size and very palatable bone-free white
Nile perch further eats other smaller fish species in the lake, therefore, making itself
vulnerable to fishermen.
Choosing the ideal Site for Tilapia Fish Farming
One of the key factors that will determine your level of success or failure in this business is
the selection of your site.
so I will take a little more time to explain in detail.
One of the key things you will need to take into consideration in selecting a suitable site for
your tilapia fish farming is:
your accessibility to water source throughout the year.
Your fish farm will need plenty of water so it is vital that wherever you situate your farm that
you can have access to regular and fresh supply of water regularly.
Without water … there is no fish farm!!!
The site should also be well exposed to light (i.e. sunlight).
This helps to hasten photosynthesis in small aquatic plants such as algae which will be serving
as the number one source of food for the tilapia fish.
You also need to site your farm in an area which is not prone to flooding.
The least thing you want is for every time it rains for your fish to be swept away.
The soil of the area should be clayey in order for it to retain water and must not contain
This can cause the water to become poisonous to the fish.
If you ignore this, you may wake up one morning after a heavy rain to see your fish all dead
floating on top of the pond.
In choosing your tilapia fish farming site,
Cage Tilapia fish farming
Raising fish in cages is a successful system used in many parts of the world.
It has replaced the traditional fish-growing method of earth ponds.
Its advantages are well recognized and it is widely spread all over the globe.
The first and most important advantage is the unlimited amount of water surrounding the
cages. This unlimited water supply provides vast amounts of oxygen and running water which
is necessary for productive fish farming.
Secondly, the financial investment in such a system is much lower.
This system of cages is simpler in daily operation in comparison to any other commonly used
method of growing fish.
Site Selection and Placement of Cages
Large bodies of water tend to be better suited for cage culture than small ponds, because the
water quality is generally more stable and less affected by fish waste. Exceptions are entropic
waters rich in nutrients and organic matter. Small (1 to 5 acres) ponds can be used for cage
culture, but provisions for water exchange or emergency aeration may be required.
Cages should be placed where water currents are greatest, usually to the windward side. Calm,
stagnant areas should be avoided. However, areas with rough water and strong currents also
Cages may be moored individually or linked in groups to piers, rafts, or lines of heavy rope
suspended across the water surface. At least 5 meters should separate each cage to optimize
The cage floor should be a minimum of 4 meters above the bottom substrate, where waste
accumulates and oxygen levels may be depressed. However, greater depths promote rapid growth and
reduce the possibility of parasitism and disease.
In pond farming, Nile perch is kept in the same structure with other smaller fish species. “In
this case, we allow both sexes of small fish species so that they can reproduce in plenty, thus
naturally providing food for the Nile perch. Ponds where the Nile perch is kept, however, must
Under normal circumstances when rearing fish species like tilapia, farmers go for same sex to
avoid over-reproduction that makes management a tough task.
But in the Nile perch fishponds, the
carnivorous fish species prey on the reproduced fingerlings, making it possible to keep the
parent stock population in control, while at the same time providing food for the bigger fish.
The scientist further said that while keeping Nile perch in ponds, one should harvest when they
are still smaller, unlike in cages where they can be left to grow big.