Lough Melvin ( ; ) is a lake in the northwest of the

island of Ireland Ireland ( ; ga, Éire ; Ulster-Scots: ) is an island in the North Atlantic Ocean, in north-western Europe. It is separated from Great Britain to its east by the North Channel, the Irish Sea, and St George's Channel. Ireland is the s ...

on the border between

County Leitrim County Leitrim ( ; gle, Contae Liatroma) is a county in Ireland. It is in the province of Connacht and is part of the Northern and Western Region. It is named after the village of Leitrim. Leitrim County Council is the local authority for the ...

(in

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

) and

County Fermanagh County Fermanagh ( ; ) is one of the thirty-two counties of Ireland, one of the nine counties of Ulster and one of the six counties of Northern Ireland. The county covers an area of 1,691 km2 (653 sq mi) and has a population of 61,805 ...

(in the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...

). It is internationally renowned for its unique range of plants and animals.

Ecology

The water quality was reported to be excellent with an oligotrophic rating. The ecology of Lough Melvin, and other Irish waterways, remain threatened by curly waterweed,

zebra mussel The zebra mussel (''Dreissena polymorpha'') is a small freshwater mussel. The species originates from the lakes of southern Russia and Ukraine, but has been accidentally introduced to numerous other areas and has become an invasive species in ma ...

, and freshwater clam invasive species.

Fishes and angling

Lough Melvin is one of Ireland's famous angling loughs offering the chance of spring

salmon Salmon () is the common name for several commercially important species of euryhaline ray-finned fish from the family Salmonidae, which are native to tributaries of the North Atlantic (genus ''Salmo'') and North Pacific (genus '' Oncorhy ...

from February to May,

grilse Salmon () is the common name for several commercially important species of euryhaline ray-finned fish from the family Salmonidae, which are native to tributaries of the North Atlantic (genus '' Salmo'') and North Pacific (genus ''Oncorhynchu ...

from May to July and gillaroo, sonaghan and ferox trout throughout the season. Lough Melvin is also home to an endemic species of char, the Melvin charr or Gray's charr ('' Salvelinus grayi''). A

ghillie ''Gillie'' or ''ghillie'' is an ancient Gaelic term for a person who acts as a servant or attendant on a fishing, hunting, deer stalking or hawking expedition, primarily in the Scottish Highlands or on a river such as the River Spey. In origi ...

or boatman is strongly recommended to anglers unfamiliar with the lake.

Gillaroo trout

Lough Melvin is home to the gillaroo or ''Salmo stomachius'', a species of

trout Trout are species of freshwater fish belonging to the genera '' Oncorhynchus'', '' Salmo'' and '' Salvelinus'', all of the subfamily Salmoninae of the family Salmonidae. The word ''trout'' is also used as part of the name of some non-salm ...

which eats primarily snails. The name "gillaroo" is derived from the

Irish language Irish ( Standard Irish: ), also known as Gaelic, is a Goidelic language of the Insular Celtic branch of the Celtic language family, which is a part of the Indo-European language family. Irish is indigenous to the island of Ireland and was ...

''Giolla Rua'', which means "Red Fellow". This is due to the fish's distinctive colouring. It has a bright buttery golden colour in its flanks with bright crimson and vermillion spots. The gillaroo feed almost exclusively on bottom living animals (snails, sedge fly larva and freshwater shrimp) with the exception of late summer when they come to the surface to feed and may be caught on the dry fly.

Sonaghan trout

The sonaghan trout (''Salmo nigripinnis'') is another species of salmonid unique to Lough Melvin. It can have a light brown or silvery hue with large, distinctive black spots. Its fins are dark brown or black with elongated pectorals. Sonaghan are found in areas of open, deep water, where they feed on mid-water planktonic organisms such as water fleas (

Cladocera The Diplostraca or Cladocera, commonly known as water fleas, are a superorder of small crustaceans that feed on microscopic chunks of organic matter (excluding some predatory forms). Over 1000 species have been recognised so far, with many more ...

), midge (

chironomid The Chironomidae (informally known as chironomids, nonbiting midges, or lake flies) comprise a family of nematoceran flies with a global distribution. They are closely related to the Ceratopogonidae, Simuliidae, and Thaumaleidae. Many specie ...

) pupae and phantom ('' Chaoborus'') larvae. Sonaghan will be most readily located close to the surface over deep water.

Fly-fishing Fly fishing is an angling method that uses a light-weight lure—called an artificial fly—to catch fish. The fly is cast using a fly rod, reel, and specialized weighted line. The light weight requires casting techniques significantly differ ...

with a team of wet flies fished in classic lough style (i.e. short, snappy casts from a boat drifting beam-on to the breeze) gives best chance of success. Sonaghan give a powerful and energetic fight out of all proportion to their size.

Ferox trout

The classic work carried out by Andrew Ferguson of Queens University on the genetics of the

of Lough Melvin identified the ferox as a separate subspecies. The fish home to a specific spawning area and are reproductively isolated. They are also one of the oldest trout races to colonise Ireland, perhaps as old as 50,000 years. Ferox

cannibal Cannibalism is the act of consuming another individual of the same species as food. Cannibalism is a common ecological interaction in the animal kingdom and has been recorded in more than 1,500 species. Human cannibalism is well documented, bo ...

ise brown trout (which returned to many of the same lakes when geological processes and climatic conditions allowed) and also prey on other fish species. The best method of capture is trolling, particularly with a Rapala type lure.The Trouts – Ferox
Irish Char Conservation Group

Panoramic view

References and notes

Notes

Primary sources

Secondary sources

* * {{authority control

Melvin Melvin is a masculine given name and surname, likely a variant of Melville and a descendant of the French surname de Maleuin and the later Melwin. It may alternatively be spelled as Melvyn or, in Welsh, Melfyn and the name Melivinia or Melva may ...

Fishing in Ireland

Republic of Ireland–United Kingdom border