Trolaarikalastus

Trolaarikalastus, also known as trawling, is a method of fishing that involves pulling a fishing net through the water, often behind a single boat or a pair of boats. The net is shaped like a cone or a bag and is designed to catch fish by surrounding and scooping them up. There are several types of trawling, including bottom trawling, midwater trawling, and pair trawling, each suited to different marine environments and target species.

Bottom trawling involves dragging a net along the seabed, which can be effective for catching demersal fish such as cod, haddock, and flatfish. However, it has raised concerns due to its potential impact on marine habitats, including damage to coral reefs and seabed ecosystems. Midwater trawling, on the other hand, operates in the water column above the seabed and is used to catch pelagic species like herring, mackerel, and squid. Pair trawling utilizes two boats to tow a single, larger net, allowing for greater control and potentially higher catch efficiency for certain species.

Trolaarikalastus is a widely used fishing technique globally, contributing significantly to seafood supply. The effectiveness of trawling in catching large quantities of fish has made it economically important for many fishing communities. However, the method's sustainability and environmental impact remain subjects of ongoing research and debate, leading to regulations aimed at minimizing bycatch and protecting vulnerable marine ecosystems. Different countries and fishing organizations have implemented various management measures, including gear restrictions, closed areas, and quotas, to address these concerns.