Longline is regarded as one of the most environmentally friendly harvesting methods for wild fish.

CO2-emissions is regarded as one of the main environmental challenges in our time. The fuel consumption of hauling a 10-millimeter longline rope versus operating a bottom trawl is calculated to be less than 50 % per kilo catch, and in average one kilo of wild caught cod produce only 10 % of the carbon footprint as one kilo of beef[1].

Vulnerable bottom areas such as coral reefs have been treated by human activities, among them bottom trawling. In a large scientific study lead by United Nations scientists, Longline fishery is evaluated to have a minimal benthic impact compared to other demersal fishing methods [2].

Ghost fishing is another environmental challenge caused by fisheries activity and is almost non-existent in Longlining. When hooks are rid of bait they are not attractive to fish anymore and will consequently not catch any while a lost gillnet has proven to catch and kill fish for a long period after being lost[3].

[1] Winther et al 2009: Carbon footprint and energy use of Norwegian seafood products. SINTEF report SFH80 A096068

[2] Suuronen et. Al 2012: Low Impact and fuel efficient fishing- Looking beyond the horizon. Fisheries Research 119-120 (2012) p. 135-146.

[3] Macfadyen et Al 2009: Abandoned, lost or otherways discarded fishing gear. FAO FISHERIES AND AQUACULTURE TECHNICAL PAPER 523.