Aquaculture fish cages at sunset with flying birds and calm sea.

Aquaculture & Fishing

Engineered to help every harvest thrive.

From fish farming and offshore aquaculture to predator protection and mooring systems, Cortland International delivers engineered netting and rope solutions designed for strength, durability, and long-term performance. Our portfolio combines decades of manufacturing expertise with high-quality synthetic materials to help producers improve operational efficiency, protect valuable stock, and withstand the demands of harsh marine environments.

Submit a Request

Child playing with fishing net by the water at sunset, scenic outdoor image.

Smarter solutions for stronger aquaculture.

Every aquaculture operation has unique challenges. That’s why Cortland International offers a comprehensive range of knotless and knotted netting, anti-predator systems, trawling netting, and high-performance ropes designed to maximize service life, reduce maintenance, and deliver dependable performance in demanding offshore and nearshore environments.

Knotless Netting

High-strength knotless netting delivers exceptional durability, improved water flow, and reduced fish abrasion for healthier, more efficient aquaculture operations.

Knotted Netting

Engineered for reliable performance and long service life, our knotted netting provides dependable strength for a wide range of fish farming applications.

Anti-predator Netting

Protect valuable stock from marine predators with rugged netting systems designed for maximum security and durability.

Circular fish farming pond with netting in aquaculture facility.

Aquaculture Cages

Custom aquaculture cages from Cortland International allow for the free flow of water while containing aquatic animals, enabling efficient farming in existing water resources.

Tufline Trawling Netting

Manufactured for demanding commercial fishing environments, Tufline® trawling netting offers excellent strength, abrasion resistance, and long-lasting performance.

High-performance Ropes

Our UHMWPE (HMPE) engineered synthetic ropes deliver superior strength, durability, and handling characteristics for mooring and aquaculture support applications.

Close-up of durable turquoise and yellow marine rope from Cortland.

Floating Ropes

Lightweight floating ropes provide excellent strength-to-weight performance, low water absorption, and dependable buoyancy for aquaculture operations.

Close-up of white synthetic rope with blue accents for marine use.

Sinking Ropes

Designed to remain submerged, our sinking ropes offer outstanding abrasion resistance and durability for underwater mooring lines to secure fish pens and cages, and as groundlines along the seafloor.

Aquaculture & Fishing Gallery

Downloads

Aquaculture Catalog

We recognize the importance of this evolving industry and are committed to empowering its growth through innovative rope and netting solutions.

Tilapia Nets

Specifications for knotted and knotless tilapia nets, designed for durability, stock retention, and resistance to UV, abrasion, and fouling.