Britannica Sources used in this answer

Which flatfish families are important to commercial fisheries in northern waters?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Body plan and sexual dimorphism in the common sole (Solea solea) and dusky flounder (Syacium papillosum). — pleuronectiform Body plan and sexual dimorphism in the common sole (*Solea solea*) and dusky flounder (*Syacium papillosum*).

Flatfishes of the family Pleuronectidae are the most commercially important flatfishes in northern waters. While members of other families are harvested in limited quantities, no other flatfish group is utilized to the same extent as Pleuronectidae.1

This family includes several economically valuable species, such as the Atlantic halibut and the Pacific halibut. Additionally, other flatfish families are represented in northern commercial catches, though to a lesser degree; for instance, plaice and sole (family Soleidae) are taken in the North Sea.23

It is essential to recognize that many of these populations have been heavily exploited, leading to concerns regarding the sustainability of these fisheries. Ethical fishing practices, such as adhering to catch quotas and monitoring programs, are vital to ensure the long-term survival of these species and the health of marine ecosystems.43