Sea Cage Aquaculture


Sea Cage Aquaculture   Sea Cage Aquaculture is that of  farming of fish in floating net mesh cages that are either anchored in natural waterways, lakes, estuaries, bays, or other coastal marine or freshwater environments.

In general juveniles (fingerlings) are sourced from external hatcheries or wild populations, however with BBA/BD7 manufacturing comes comprehensive  and integrated cage farm operational designs that now incorporate complete hatcheries  for land based and floating operation,  providing for an  overall self-contained  farm that is  ideally suited to both  commune and commercial  farming in developing  countries taking in to consideration where suitable land is neither physically or economically  available but water quality is high and easily accessible.

The growing of fish in open waters removes one of the biggest constraints land based aquaculture encounters, that of the need for a constant flow of clean, oxygenated water as cage aquaculture draws its resources from both around and beneath it

This in general is practical operation, however logistics and operational considerations as to fingerling supplies, power generation and more importantly fish health are major considerations and are addressed by BD7 cage technology.

BD7 sea cage designs offer practical solutions in that of pre-fabricated building structures, infrastructure, floating cages and pontoons units utilizing energy saving equipment incorporating solar, wind power supported by of  ‘onboard’ hatchery and nursery facilities as required.

 BD7 cage operational designs are based upon proven ‘Barrablue’ technology principles of water and air recirculation management with strict attention to biosecurity to meet the stocked biomass required using  ‘airlift’ water technology, additionally the inclusion of cage ‘liners’ to allow  hypo salinity disease and parasite  prevention and treatment  with  in situ ‘bathing’ to maintain good fish health.

Many options are available as each caged operation is design to both specific client and site requirements dependent upon the variables, i.e. location (open or sheltered waters), operational demand (tonnage), fish (species)  to be grown, logistics (supplies and market requirements) and weather conditions.


Grouper Floating Hatchery Design -Grow-out 1000Ton

Cages 3m Depth - 1800 Ton Recirculative system