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...
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.
The problem with aquaponics
Currently, too many systems cruelly compromise fish quality to favour plant production. But there’s a simple solution to this unacceptable state of affairs that will see both flourish.
Aquaculture jobs and training
Fish farming is an attractive occupation that appeals to many young people. What should they do to get started?
Aquaculture feed
The main operating cost of intensive aquaculture ventures is feed, and many ventures fail due to excessive spending on this input. Larger, warm water projects are now carefully scrutinising feed...
Controlling diseases in aquaculture systems
Producers can use a variety of methods to limit diseases in their commercial aquaculture systems.
Fish farming in Winter
When it comes to temperature levels, warm water fish farms and trout farming are at opposite ends of the spectrum. While tilapia hibernates in winter, trout prefer the cooler weather.
A fingerling’s happy home
Spacious tanks, consistency in water temperature and quality, and using both natural and live feed will ensure robust, healthy fish.
Fish breeding do’s & don’ts
There’s more to breeding than sticking fish in the water and hoping for the best. Start off with the right type of tank, get quality fish, and avoid inbreeding.
Tilapia on our shelves
Long considered the ‘aquaculture fish of the future’, tilapia products are now being imported in quantity from Zimbabwe, writes Stephen McVeigh.
Developing a pond farm
There is no reason that pond fish-farming could not be viable in parts of South Africa, as it is already successful elsewhere in Africa.
Fish fall foul of new laws
For many years, aquaculture in South Africa has had to play second fiddle to the various departments of nature conservation. Now this has changed. Or has it?
Aquaculture: Are we making progress?
A brief overview of the current state of fish farming in South Africa.
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