Variations: Flyðrumóðirin (pl.), Halibut Mother; Laxamóðir (Salmon Mother), Laxamóðirin (pl.); Silungamóðir (Trout Mother), Silungamóðirin (pl.)
The Flyðrumóðir, or “Halibut Mother”, is fairly representative of the Icelandic móðirin, the “mothers” of certain species of fishes. These creatures look like huge, monstrous versions of their namesakes, and they protect their smaller kin fiercely.
A flyðrumóðir looks like the halibut it protects, but it is much larger, growing to the size of a fishing boat. Its body, which turns grey on both sides with age, is covered with shells, barnacles, and seaweed, making it look like a small island when it surfaces.
While the flyðrumóðir has been said to be the mother of all fishes in the sea, its true “children” are the halibut. It is followed by schools of halibut out at sea, and it protects them if they are persecuted. A schooner in Faxaflói attracted (and escaped) the attention of a flyðrumóðir after it hauled up 40 halibuts. Another fishing boat owned by Archdeacon Hannes Stephensen was less lucky; it caught a flyðrumóðir on a coffin-nail hook, but was capsized by the halibut mother with all hands lost.
Even catching a flyðrumóðir is not necessarily a good thing. After the halibut mother of Breiðafjörður was snagged on a golden hook and filleted, the waters of the area ceased to produce fish, and the angler who caught the giant halibut never again caught a fish in his life.
Similar fish mothers include the freshwater Laxamóðir, “Salmon Mother” and Silungamóðir, “Trout Mother”. Both of these resemble oversized salmon and trout, respectively. Salmon mothers will swim out of salmon-rich rivers, tearing through fishing nets along their way. The big-headed trout mothers are bad luck to catch, and should be released whenever possible.
Hlidberg, J. B. and Aegisson, S.; McQueen, F. J. M. and Kjartansson, R., trans. (2011) Meeting with Monsters. JPV utgafa, Reykjavik.