“ purity of the water is critical ”
The majority of King salmon in New Zealand are raised within sea farms located in areas selected for their isolation, water quality and flow and adhering to the Resource Management Act 1991, focussed on the sustainable management of New Zealand’s natural resources.
A King salmon life starts in a fresh water hatchery where it will remain until around 8-13 months before being transferred to a salt water farm.
These sea farms are designed specifically for New Zealand conditions with pens up to 24m deep.
The depth of the pens offer improved growing conditions allowing the fish to move below the surface water and away from surface related stress.
The young fish after, being placed within a sea water farm, will generally take 19 – 31 months of further nurturing to grow to an optimum market size of around 3.5 – 4 kg (7.7-8.8 lbs) and ranging up to around 6 kg (13.2 lbs).
In New Zealand, site selection for the growing of King salmon is based on a pristine and unpolluted rearing environment.
Farms are strategically positioned in remote areas with strong tidal flow.
The temperature and purity of the water is critical and the sun, wind and tides assist in cleaning the cages.
Fish need a plentiful supply of well-oxygenated and unpolluted water.
A good depth of water allows adequate space between net and seabed; a good water flow ensures a constant supply of dissolved oxygen and maintains the water quality.