Protective Nets Against Predators
In some farming areas, spiny dogfish can pose a challenge beneath fish cages. These small sharks are often drawn to feed residues or organic material that settles at the bottom of the net bag. Over time, their presence can lead to increased wear on the netting, particularly in exposed lower sections.
Spiny dogfish have strong jaws and sharp teeth. Repeated contact with the net can weaken the material and, in worst cases, create damage that affects both fish welfare and operational safety.
To reduce this risk, a protective net is installed at the bottom of the net bag. This added layer absorbs most of the mechanical impact and abrasion, protecting the primary net from direct exposure. The result is extended service life, reduced maintenance, and a more robust solution in areas with known predator pressure.
The approach is simple: protect the most exposed area, and let the system work as intended—over time, in real conditions.