Fish Farming

Fish Cage Systems

Floating polyethylene fish cages for marine and inland-water projects. 12 m to 60 m diameter range, 2 or 3 main pipe configuration — sized to site data.

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SYSTEM CORE

Floating fish cages built from high-density polyethylene with 2 or 3 main pipe configurations. Engineered to respond elastically to current, wave and wind loads — site-specific engineering for the dynamic conditions of the open ocean. We manufacture THOR injection brackets at our Izmir facility and size each cage to species, site data and target production capacity. Engineering, transport and on-site commissioning are delivered turnkey by the ASAKUA team.

APPLICATION SCENARIOS

Designed for these scenarios.

SCENARIO 01

Open-ocean fish farm

30 m to 60 m diameter range, 2 or 3 main pipe configuration. For sea bream, sea bass, trout and salmon farming in high wave and current exposure sites. Active installations across Mediterranean, Black Sea and Atlantic waters.

SCENARIO 02

Lake and reservoir farm

12 m to 30 m diameter range, typically 2 main pipe configuration. The standard choice for trout, sturgeon, carp and tilapia in inland water projects. Delivered to reservoirs in the Caucasus, Central Asia and East Africa.

SCENARIO 03

Sheltered bay and coastal cages

12 m to 30 m diameter range, 2 or 3 main pipes. For sea bream, sea bass and barramundi farming in semi-exposed waters with moderate wave loads. We operate systems along Red Sea and Indian Ocean coastlines.

TECHNICAL

Technical detail.

Built from UV-stabilised polyethylene PE100 pipes — 250 mm, 315 mm, 400 mm, 450 mm and 500 mm diameter options selected to site conditions. The 2 main pipe configuration covers most standard projects with balanced floor area and design loads; the 3 main pipe configuration is preferred where wave exposure is high or cage diameter exceeds 40 m.

All main pipe and handrail joints use ASAKUA THOR injection-moulded brackets — five variants from 250 mm to 500 mm, weld-free assembly and consistent polyethylene-to-polyethylene material continuity. Our Izmir injection line manufactures THOR brackets; we have delivered over 100,000 THOR brackets to the field to date.

Cage design is carried out against site data. Raw material: PE100. Engineering, manufacturing, packing, transport and on-site installation — turnkey from a single supplier. ASAKUA has completed over 50 fish farm projects to date.

Diameter range: 12 m – 60 m (standard) · custom diameters on request
Pipe diameter: 250 mm · 315 mm · 400 mm · 450 mm · 500 mm
Configuration: 2× main pipes · 3× main pipes
Handrail height: 125 mm standard · double rail optional
Material: HDPE PE100, UV-stabilised
Bracket system: THOR injection-moulded (250 / 315 / 400 / 450 / 500 mm)
Design reference: Site-specific design
Manufacturing: ASAKUA Izmir facility · 90 kg max injection capacity
Design life: 25 years, with normal maintenance