15 years: Ocean conservationist
Almost 90% of global marine fish stocks are exploited or overfished. On average, we eat twice as much fish as we did 50 years ago. How did we get here? Join Vincent Kneefel as he explores fisheries and aquaculture, the most common fishing methods and some solutions to the fishing crisis.
Almost 90% of global marine fish stocks are exploited or overfished. On average, we eat twice as much fish as we did 50 years ago. How did we get here? Join Vincent Kneefel as he explores fisheries and aquaculture, the most common fishing methods and some solutions to the fishing crisis.
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12 mins 6 secs
Fishing has become a large problem in the marine industry. 38 million tonnes of sea creatures are unintentionally caught every year, an estimated 40% of the entire fish catch. In addition to that, almost 90% of global marine fish stocks are now fully exploited or overfished. The most common fishing methods include: purse seine, trawling, gillnets, long lines and pole and line. Each has their own problems with levels of bycatch unintentionally caught. There are some solutions we can use to limit the impact of overfishing however, namely seafood traceability and fish alternatives (i.e. plant-based fish).
Key learning objectives:
Define fisheries and aquaculture
Identify common fishing methods
Understand how to combat fishing problems
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A fishery is a fishing ground or area where fish are caught.
Aquaculture is the term used to describe the farming of fish.
1. Purse seine
A boat locates a school of fish and then, using either a crane or other smaller boat, takes one end of a net around the school and back to the fishing vessel. The ends of the net are synced together like a drawstring bag and pulled aboard with the fish inside.
2. Trawling
Trawling is the process of dragging a net through the water behind a boat. There are two different kinds: bottom trawls and midwater trawls.
3. Gillnets
Gillnets are set up to act as a wall with holes in it which fish unknowingly swim into and get stuck.
1. Longlines
These are very long fishing lines that have a baited hook every few feet and can be many miles in length.
2. Pole and line
A fishing pole and line is used to catch individual fish.
1. Seafood traceability is critical to strengthening the sustainable management of fisheries, deterring illegal practices and verifying environmental and social responsibility claims.
2. Fish alternatives could help to diminish some of the problems. Plant-based seafood could help to take some of the strain off the industry by alleviating the demand for fresh-caught fish, curbing the overfishing that can decrease fish populations, reduce biodiversity in the ocean and harm habitats.
This content is also available as part of a premium, accredited video course. Sign up for a 14-day trial to watch for free.