07/15/2026
Commercial Fishing Types (Part Two!)
There are a lot of different methods used in today's commercial fishing industry, with each having their own place in the patchwork of the modern trade. Below are some of the methods used in B.C. fisheries both historically and today. For more information, check out our post from July 9th!
Gillnetting is the most selective method of fishing used in BC, making use of a specific type of net called 'gillnets'. Gillnets are placed vertically in the water using weights on the bottom and floats on top and feature holes that are designed to allow fish to swim through only until the largest part of their body, at which point they will become stuck in the mesh trying to back out. The holes are large enough that smaller fish can swim through with no issue and large fish are unable to even enter, greatly increasing the selectability. Today, gillnetting is used to catch all varieties of pacific salmon as well as roe herring.
A far less selective form of fishing can be found in trawling, which is the use of a large, conical net being dragged behind a vessel (called a trawler or dragger.) The net is kept open by one of two methods: either the use of a long pole to keep the net spread (known as beam trawling) or a pair of boards known as 'otter boards' on opposite sides of the net (called otter trawling.) Trawling can be done either along the ocean floor or mid-water, although the amount of BC's seafloor that is passable for bottom-trawling is estimated to be less than 6%. Additionally, there are prominent concerns about the damage to local ecosystems bottom trawling can cause and the rate of bycatching associated with all forms of trawling.
To learn more about how our fisheries operate both then and now, come down to the Union Bay Museum, open 9:30-4:30 Wednesday through Sunday!
Sources:
"Land of Plenty: A History of the Comox District" by D.E. Isenor, W.N. McInnis, E.G. Stephens, and D.E. Watson, 1987.
"Gillnets." Marine Stewardship Council, n.d.
https://www.msc.org/.../fishing-methods-and-gear.../gillnets
"Demersal or Bottom Trawls." Marine Stewardship Council, n.d.
https://www.msc.org/.../fishing.../demersal-or-bottom-trawls
"Fishing, Commercial." KnowBC, n.d.
https://www.knowbc.com/knowbc/Books/Encyclopedia-of-BC/F/Fishing-Commercial
"Uncovering the Secrets of BC's Controversial Trawl Fishers." Amanda Follett Hosgood, 24 June 2025.
https://thetyee.ca/News/2025/06/24/Secrets-of-BC-Trawlers/
This article from The Tyee, an online BC-centred paper, goes more in depth into the ecological effects of trawl fishing as well as the industry's response, and is well worth a read if you are interested in the topic.
"Gillnet." BC Seafood Alliance, n.d.
https://bcseafoodalliance.com/harvest_method/gillnet/
This article gives a very good explanation of gillnetting and how it is done today.