Simple, proven technology for fish farming
There is much to be said for the reliability of proven filter designs, as opposed to newer ones where reliance on fragile, complicated technology could result in toxic water with dead or sick fish.
Know your tilapia species
There are many factors to consider when selecting a tilapia species. Here, in a nutshell, are the main advantages and disadvantages of each one.
Farmed tilapia are safe to eat
Commercially farmed tilapia are all male, due to minute quantities of a hormone they are given early on in their lives, but they are perfectly safe to eat!
More on species and strains
What characteristics are sought for improvement in a strain development programme? How far beyond simple growth improvement must one go?
Selecting fish species and strains
The correct choice of fish species or strain can determine success or failure. Beware of breeders claiming to have developed a superior ‘strain’ of tilapia. Chances are they have done no such thing.
Aquaculture success stories in Southern Africa
There are not too many successful commercial aquaculture enterprises in Southern Africa, but these two are worth mentioning.
When things go amiss with aquaculture systems
An intensive aquaculture system can fail for several reasons. A producer should always be prepared.
Aquaculture – the ‘right’ and ‘wrong’ stuff
Prospective aquaculture entrepreneurs are cautioned to evaluate a system’s yield potential before investing in unrealistic, small-scale projects that fail to provide adequate returns.
Aquaculture: Can the concept of zoning work?
Grouping aquaculture activities on one site for administrative convenience simply won’t work.
What danger do freshwater species really pose?
Climatic conditions dictate where species such as trout, tilapia and catfish can be farmed as well as the threat they pose to our natural environment.
Needed: fewer laws and more professionalism in aquaculture
New zoning regulations to protect riverine biodiversity take aim at aquaculture. But they may harm the industry – and still be ineffective.
Nile Tilapia: Wiser laws, higher yield
As it stands, prospective legislation seeking to control the use of Nile tilapia will be counter-productive and hamper the growth of aquaculture in South Africa.
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