The length-mass relation for swordfish xiphias gladius in the atlantic ocean
The swordfish (Xiphias gladius) is a valuable industrial and amateur fishing object. It is the subject of trade for Japan, the USA, Italian, Spanish, Canadian, Korean, Chinese, Philippine's, and Mexican fleet. The overall catches of swordfish in the Atlantic Ocean in 2011-2014 was between 30-38 thousands of tons. Like other big pelagic species, such as sailfish and marlin, the swordfish plays a crucial role in the World Ocean ecosystems and deserves a special attention.