Terminology

An eyebolt is a metal fastener with a looped head, used to securely anchor ropes, cables, or nets to a fixed surface.

Grommets are small metal or plastic rings inserted into a flexible material - such as netting, tarpaulin or canvas - to reinforce a hole and enable hanging, the passage of ropes or attachment to structures.

Snap hooks are quick-release metal hooks fitted with a spring-loaded latch, used to easily attach, fasten or secure nets, ropes or cables.

The quick link is a metal connector closed by a screw, used to create a solid, permanent link between two elements, such as threads, chains or cables. Unlike carabiners, they are not spring-loaded, but are locked by manually screwing on the locking ring.

Vinyl Canvas is a strong, flexible strip usually welded or sewn around the perimeter of a net to reinforce the edges. It improves strength, facilitates installation (e.g. by inserting eyelets) and extends the net's lifespan. At Filmar, we use high-quality, UV-, moisture- and wear-resistant vinyl strips to guarantee clean, long-lasting finishes on all our professional nets.

Composite material obtained by weaving threads or textile fibres made of cotton, hemp, linen or synthetics such as nylon, polyamide or viscose.

Steel or aluminium bar generally used to support a net vertically.

Heavy object added to the bottom of nets to facilitate lowering and allow nets to be vertical in a body of water. Often used in conjunction with floats

Wooden or aluminium stick usually attached to a landing net to hold it at arm's length.

Vertical guide attached to net mouth to create a wall in front of the net encouraging organisms to follow it towards the net mouth

Tool in which organisms are confined during sampling, and which can then be removed to collect samples.

Object (usually hollow) capable of floating on the surface of the water. Usually installed on the headrope of a net to enable it to float on the surface of the water.

Small rope te textile used when weaving the net to the perimeter ropes or any other object requiring the net to be attached to it.

20-25kg weight with a "V"-shaped wing serving to substantially encourage the descent of a net. Generally used in conjunction with large nets in oceanographic research.

Tool installed at the opening of a plankton net to measure the speed of water flowing through the net. Mechanical and digital models available

Square made from stainless steel or aluminium, generally used as an opening in certain types of fyke nets or to hold the net in a certain shape.

Circle made from stainless steel or aluminum, usually used to make cylindrical bodies in fyke nets or as a fish funnel opener

Vertical guide attached to net mouth to funnel organisms into net mouth

Semi-crystalline thermoplastic polymer with exceptional fatigue strength

Made in Canada from high-tenacity multifilament polypropylene, this is the ultimate all-purpose utility rope. While one of the biggest concerns with polypropylene rope is that it degrades in the sun, this rope is made with UV-stabilized yarn for extra longevity.

Rope with a lead rope at its core, thus increasing its weight and acting as a weight on the bottom of the nets to guarantee a constant descent along the length of the net.

A rope with a cork rod at its core, increasing its buoyancy. Installed on the top of nets to ensure that the top part floats on the surface of the water.

A term used in the fishing and maritime industries to designate all the sides of a net that are reinforced with a mesh.
rope. Drop rope refers to the vertical sides, top rope and bottom rope refer to the top and bottom of the net respectively.

Net mounting during which the meshes are attached to the headline at a certain percentage of their maximum size (50%, 60%, 70%, 80%), thus reducing the size of the mounted mesh, allowing, for example, a fish to pass its head, but to block at the desired body diameter.

The action of taking a regular piece of net and adding selvedges (ropes) on the sides, to allow the net to keep its shape and increase the buoyancy or weight on one of the selvedges.

Net only without rope and wire. The net is not very pleasant to use, but works for precise applications requiring fast, low-cost work. Difficult to install, as the net tends to pull towards the center of itself.
even

Net only without rope and wire. The net is not very pleasant to use, but works for precise applications requiring fast, low-cost work. Difficult to install, as the net tends to pull towards the center of itself.
even

Rope installed on the perimeter of a net and woven with a fine thread allowing the net to take the required shape.

Treatment applied to the strand used in the manufacture of the net to protect it from UV rays, thus extending its useful life.

Farbiqué netting with weaving of the strand inside the opposite strand to create a mesh (Raschel). The end result is a net that is softer to the touch and has a more attractive finish.

Net made of several strands twisted together and generally mounted at a percentage to allow the fish to pass its head through and remain attached to the body. As soon as the fish retreats, it is caught by the gills. Multifilament is stronger than monofilament.

Net made of a single strand which is usually mounted at a percentage to allow the fish to pass its head through and remain price to the body. As soon as the fish retreats, it is caught by the gills.

Treatment applied to the strand used in the manufacture of the net to make it flame retardant

This is the maximum force that can be exerted on a strand before it breaks.

Diameter of the wire used to make the net. The larger the diameter, the stronger the net.

Textile industry unit of measurement representing the weight in grams of a 9m-long fabric.

Machine-made knotless net with hexagonal meshes, very strong and with mesh sizes ranging from 1/32" to 1/4".

The color of the strand used to make the net, which is also the color of the net.

Yarn used in the initial design of the net. The net is the result of different strands woven together, with or without knots.

Net made by knotting the strands to create the mesh. The result is a net that is rougher to the touch.

Maximum distance between two opposite corners of the same mesh when stretched to their maximum. Twice the length of the square mesh. This is simply the largest dimension the mesh can assume when the perpendicular length is reduced to its minimum.

Distance between two corners of the same mesh. A 1" x 1" object cannot pass through a 1" x 1" mesh. An object with a diameter of 1", on the other hand, can pass through the same mesh.

High-density polyethylene (HDPE) is made from naturally UV-resistant materials that do not absorb water or rot, but have a lower tensile strength than nylon. HDPE net retains its color for the entire life of the net. Since it doesn't absorb water, there's less sagging, so fewer adjustments are needed to the net. We suggest this net for high-temperature areas and snowy climates. High-density polyethylene loses only 10% of its strength over its lifetime, making it ideal for outdoor use.

Nylon mesh has an initially higher breaking strength than HDPE.

European-made fabric manufactured to excessively high standards, giving the material uneven precision. Ideal for scientific research requiring replicable conditions in different environments

Light, malleable metal found mainly in bauxite. An impermeable alumina layer just a few nanometers thick protects it from corrosion, making it ideal for aquatic use.

Steel made from an alloy of iron and carbon, with less than 1.25 carbon and more than 10.55 chromium, which is not very susceptible to corrosion and does not rust.

Steel coated with a layer of zinc during a hot-dip galavanizing process to protect the steel against corrosion. This treatment is known as anticorrosive.