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Aquaculture

fish farming system

A word of warning for start-up producers

Prospective fish producers should consider all the hurdles that stand in the way of making a profit.
Lake Malawi cichlid fish species

Southeast Asia’s formula for top ornamental fish

To produce quality ornamental fish, a breeder must establish a habitat that is as natural as possible, with food sources such micro-algae and insect larvae.
fish tunnel

How to safeguard your fish against the cold

A severe drop in water temperature can kill tilapia fish stock in an aquaculture system, and a proper heating system is the only solution.
Abalone

West Coast abalone farm doubles in size, thanks to demand

Today, there are about a dozen abalone farms along the coastline between Port Nolloth and East London. One of the first to be established was Jacobsbaai Sea Products in the West Coast hamlet of Jacobsbaai. In the 24 years since it started farming abalone, the farm has produced an ever-greater number of these delicacies, and now exports millions annually.
The fry-rearing ponds at Lake Harvest, Kariba.

A tilapia model that SA should be emulating

Land ownership of the supply chain has enabled a number of countries to produce thousands of tons of tilapia annually. There is little reason why this cannot take place in South Africa.
The Mozambique tilapia

How to distinguish similar-looking juvenile cichlids

Approximately 15 cichlid species occur in South Africa. To the untrained eye, several appear confusingly alike, especially as juveniles. So make sure you get the right tilapia species for your aquaculture enterprise!

Fish production: simplicity or sophistication?

A recirculating system and a pond farm are at opposite ends of the aquaculture spectrum. The sweet spot is somewhere in between.
Cut-down domestic water tanks

Aquaponics: get it right, or grow veggies on their own!

Many aquaponics operations focus only on plant yield and ignore fish production. These are merely hydroponic systems that use expensive means to fertilise their plants.

Debate about humane killing of fish rages on

Compared with most other agricultural industries in South Africa, the farmed fish industry is in its infancy. With no legal framework yet in place, fish farmers and animal welfare organisations are at loggerheads about how to kill fish with the least suffering.
Shortcomings of modern water pumps

Shortcomings of modern water pumps

Choose the best pump you can afford for your system. A cheap purchase will end up costing you money.
The desert: hot, dry, and perfect for fish production

The desert: hot, dry, and perfect for fish production

Groundwater extracted from arid areas is often unsuitable for irrigation, but it would be ideal for aquaculture.
Which fish should be farmed in SA, and where?

Which fish should be farmed in SA, and where?

Our climate varies dramatically from season to season, limiting the fish species that can be used in aquaculture, and the locations where it can take place.

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