More about one-by-one fishing

What is one-by-one tuna fishing

As the name suggests 'one-by-one' fishing is about using one hook and one line, to catch tuna one at a time. This includes techniques such as pole-and-line, handline and troll.

One-by-one tuna fisheries of the world

This working-map provides you with a visual representation of the location, relative size of the world's significant one-by-one tuna fisheries (pole-and-line, handline and troll). It also provides information on the fisheries certified by the Marine Stewardship Council and FairTrade. Please NOTE this live working map and this does not refer to ALL one-by-one tuna fisheries. 

The circle icons represent the locations of pole-and-line fisheries, square icons are troll fisheries and star icons are handline fisheries. The icon colours give an indication of the fishery’s catch in tonnes/year: white icons for less than 4999 tonnes/year; light blue for 5000-49999 tonnes/year and dark blue for greater than 50000 tonnes/year.

The information used to create this map was gained from a range of credible sources - references can be found on each individual data point. IPNLF will continue to update this map with information on one one-by-one fisheries. IPNLF very much welcome your input, comments and suggestions. If you have more recent or detailed information - get in touch!

We hope this resource provides a useful picture of the global extent of one-by-one fisheries.

The video below shows how fishers in the Maldives catch tuna using pole-and-line.

Pole-and-line fishing in action, Maldives 2014