Trawling is common worldwide due to its efficiency in capturing large numbers of fish.
Demersal or bottom trawling covers several gear types, all of which use a cone-like net with a closed end (cod-end) that holds the catch. These nets are towed by one or two boats and are designed to catch fish living at great depths or on the bottom of the sea.
![Bottom trawl demersal trawl illustration Bottom trawl demersal trawl illustration](https://msc-live.precedenthost.com/images/default-source/msc-english/content-banner/content-page-body-images-912-x-513/rs5074_bottom-trawl-contentbody.png?sfvrsn=6f82b945_4)
Demersal or bottom trawling covers several gear types, all of which use a cone-like net with a closed end (cod-end) that holds the catch. These nets are towed by one or two boats and are designed to catch fish living at great depths or on the bottom of the sea.