Rating recirculating systems for tilapia
The efficacy of any recirculating system must be based on solid evidence and statistics over a full season.
Is farmed fish bad for you?
Sweeping claims about toxins contained in farmed fish, which are supposedly dangerous to human health, are unsubstantiated and false.
Red tape strangles SA aquaculture
Local aquaculture is hampered by misguided policies, over-regulation and government interference – all of which serve to stifle what could otherwise be a highly productive and lucrative industry.
Oxygen and stocking rates
Any viable tilapia grow-out system is dependent on adequate oxygen levels. As stocking rates and fish size increase, so too does demand for oxygen, and it is important to ensure adequate supply at all times.
Fish farming – coping with heat
An increase in water temperature means a depletion in oxygen levels. How do tunnel-based fish farms cope with extreme heat and ensure that fish receive their required oxygen levels?
Aquaculture in 2015 – a review
The South African aquaculture industry continues to experience difficulty with the import and farming of certain species. In neighbouring countries, by contrast, the industry is flourishing.
Government’s approach towards aquaculture
The SA government’s misdirected approach towards aquaculture is clear, especially when compared with the situation in neighbouring countries.
A better way to do aquaponics
The traditional aquaponics single-unit system disadvantages the fish, the plants or both. Now might be the right time to rethink the design.
Aquaculture and conservation
Government’s draconian treatment of the aquaculture industry is hypocritical – what is it actually doing to conserve our endemic tilapia species?
Environmental discrimination in Aquaculture
The refusal by authorities to issue permits in parts of SA for the red Mozambique tilapia based purely on its skin colour is like a bizarre form of environmental segregation. It is unscientific and unfair.
An enabling environment for aquaculture?
In contrast to any other agricultural sector, aquaculture is hobbled by a maze of conflicting national and provincial restrictions and barriers.
National aquaculture conference
Two themes emerged at the recent national aquaculture conference: the maze of regulations throttling SA aquaculture development, and the relative absence of large-scale commercial fish farms.
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