Common ling
The common ling (Molva molva), also known as the white ling or simply the ling, is a large member of the family Lotidae, a group of cod-like fishes. It resembles the related rocklings, but it is much larger and has a single barbel. This species is unrelated to the pink ling, Genypterus blacodes, from the Southern Hemisphere. The common ling is found in the northern Atlantic, mainly off Europe, and into the Mediterranean Basin. It is an important quarry species for fisheries, especially in the northeastern Atlantic, although some doubts exist as to the sustainability of the fisheries. As an edible species, it is eaten fresh, frozen, or dried, but also preserved in lye, while the roe is a delicacy in Spain.
Distribution[edit]
The common ling is a North Atlantic species found in the further eastern coast of Canada, southern Greenland, Iceland, and the north-eastern Atlantic from the Barents Sea, around the coasts of the UK, becoming scarcer towards the south, and north-western Europe,[10] south to the Straits of Gibraltar and into the north-western coasts of the Mediterranean Sea.[6] It is rare in the Mediterranean[11] and in the North Sea, where it occurs as far east as the Skagerrak and Kattegat.[12]
Habitat and biology[edit]
The common ling is a demersal species that can be found over rocky substrates from 15 to 600 m or more in depth; it is most common between 100 and 400 m. The juveniles, less than 2 years old, are coastal, occurring in depths of 15–20 m, and pelagic; at 3 years, they migrate to deeper areas. Sexual maturity is attained at 5 years for males, at a length of around 80 cm and 5 or 6 years for females when they are between 90 and 100 cm in length. The spawning period runs from March to July[6] and the eggs and larvae are pelagic.[4] Each female may carry 20 to 60 million eggs. The main spawning areas are found at depths of 200 m from the Bay of Biscay to the Norwegian Sea, at depths of 100 to 300 m off southern Iceland, and at 50 to 300 m in the Mediterranean Sea. They grow rapidly, gaining 8–10 cm in length per year, a 1-year-old fish has a typical length of 20 cm, 2-year-olds 31–35 cm. The females grow at a faster rate than the males. The maximum recorded lifespan is 10 years for males and 14 for females, at which age they attain a length around 200 cm.[6]
Common ling is mainly a solitary and benthic species, which hides among rocks, crevices, and wrecks in deep water,[5] although they are often free swimming in deep water.[4] They are mainly piscivorous and their main prey include species such as Trisopterus esmarkii, Atlantic cod, Atlantic herring, and flatfish, but they also feed on crustaceans (e.g. European lobsters), cephalopods, and echinoderms (e.g. starfish).[6][5]