Netmark is a Danish company with over 40 years of experience. Netmark is a manufacturer of nettings made of high-density raw materials for the fishing industry. The knotted netting is made in different fibers for pelagic trawling, bottom trawling, purse seining, aquaculture and other industries.
Netmark are manufacturing:
All the nettings from the above-mentioned fibers for pelagic fishing are impregnated and heat treated for better abrasion resistance, optimal knot strength, and stability and prolonged lifetime. Purse seine nettings are made of black twisted nylon or black braided nylon. The raw material is high quality and the nettings for purse seining are impregnated with a special treatment, which ensures the stability and top quality.
We source our raw materials carefully and follow the quality very closely in order to ensure that all the delivered nettings by Netmark are working properly both in the new fishing and also in case of repairs when the panels are replaced.
Purse seine fishing
Netmarks twisted nylon and braided nylon nettings are suitable for purse seine fishing. It is especially good to catch species that gather in large groups or “schools” in surface or mid-ocean waters, like sardines anchovy, herring, mackerel, menhaden, squid, and tuna.
What is seine fishing?
Seine fishing is a method of fishing and the most common form is purse seine, which Netmark are making nettings for. Another main type of seine net deployed from seiners is Danish seines. When talking about Seine fishing it is important to mention that, it employs a seine or dragnet. A definition of a seine fishing net is that it hangs vertically in the water with its bottom edge held down by weights and its top edge buoyed by floats. It is possible to deploy seine nettings from the shore this is called beach seine. In addition, it is also possible to use seine nettings from boats.
A Danish seine can also be called an anchor seine. A Danish seine collects the fish in a bag, which is fastened to a conical net with two long wings. It all happens in such a way that the wings Drag lines extend from the wings and surrounds an area because of the long length. A Danish seine is similar to a small trawl net, but the wire warps are much longer and there are no otter boards. The way to catch fish by using the seine method is that the seine boat drags the warps and the net in a circle around the fish. This motion herds the fish into the central net where it cannot come out. The Danish seine method is best with demersal fish, which are either scattered on or close to the bottom of the sea, or are schooling. The Danish seining is used when it is not trawlable, which is when there are flat but rough seabed’s. This type of fishing is suitable in the northern regions, and not in the tropical to sub-tropical areas.
Purse seine is named such because along the bottom are a number of rings. A purse-line passes through all the rings when pulled. When it is pulled, it draws the rings close to one another, avoiding the fish from swimming down to escape the net. The purse seine method is the preferred way for capturing fish species, which school, or aggregate, close to the surface.
The history of seine fishing nettings
By Stone Age societies it was commen to use seiners. One of the people how used these was the Māori. They used large canoes to deploy the long seine nets. Sometimes the seine nettings could be more than one thousand meters long and it required hundreds of men to haul. The nettings were then made of green flax, with stone weights and lightwood or gourd floats. The Native Americans on the Columbia River also used fibers from the nature to make their sein nettings. They used spruce root fibers or wild grass and they also used stones as weights. To get the fish to swim in the netting and keep them together, they used sticks made of cedar because of the way it moves.
The documentation of the use of seine nettings can already be seen in the tomb paintings, which appeared in Egyptian 3000 BC. But also in the ancient Greek literature, there are many references to seine nettings. One of these is the author Ovid there are talking about the nettings and the use of cork floats and lead weights.
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