verkkokalastusmenetelmä

Verkkokalastusmenetelmä refers to a method of fishing that utilizes nets. This is a broad category encompassing various techniques depending on the type of net, the target species, and the fishing environment. Nets are typically constructed from synthetic materials like nylon, though historically they were made from natural fibers. The effectiveness of verkkokalastusmenetelmä lies in its ability to passively or actively intercept fish as they move through the water.

There are several common types of verkkokalastusmenetelmä. Gillnets, for example, are designed to catch fish by their gills. The mesh size is critical, as it determines which size of fish can become entangled. Trawl nets are actively towed through the water by one or more boats, scooping up fish in their path. Seine nets are also used to encircle schools of fish, and can be deployed from shore or from a boat. Cast nets are circular nets that are thrown by hand and sink to the bottom, trapping fish underneath.

The choice of verkkokalastusmenetelmä has significant implications for the marine ecosystem. While effective for catching large quantities of fish, some methods can lead to bycatch, which is the unintentional capture of non-target species. Overfishing can also be a concern if these methods are not managed sustainably. Regulations regarding mesh size, fishing seasons, and protected areas are often implemented to mitigate these potential negative impacts and ensure the long-term viability of fish stocks and aquatic environments.