Arctic char (Salvelinus alpinus)
… The Arctic char is native to Ireland, and its geographic range … Russia. In Ireland, the Arctic char is a glacial relict species, which means that char populations found in Ireland have become isolated from other char populations as this species' range contracted …
Sea trout (Salmo trutta trutta)
… along the west coast. Sea trout are part of the same species as brown trout: brown trout spend their entire lives … as maidens may not return to spawn for at least one year. Sea trout can range widely along the coast, moving in and out with the tides and visiting other estuaries and rivers. After returning to rivers, sea …
Pollan (Coregonus pollan)
… is endemic to Ireland, which means that it is a native species that is only found in Ireland, making it a very … the fish family Salmonidae, along with salmon, trout and char. The pollan ( Coregonus pollan ) is very closely related to the Arctic cisco ( Coregonus autumnalis ), which inhabits the …
Atlantic salmon (Salmo salar)
… or silver in colour. Salmon that mature after one year at sea are called grilse and usually return to rivers in … or more winters at sea. Atlantic salmon are an emblematic species for Ireland and are extremely valuable for angling … and ecology of ferox trout (Salmo ferox) in Ireland. Arctic char (Salvelinus alpinus) A brief description of the …
Ferox trout (Salmo ferox)
… trout that are behaviourally and genetically distinct from other wild brown trout stocks in the lakes in which they are … of fish prey, and they have been known to switch between species, for example, in Lough Corrib, where they switched between Arctic char and roach. Recent research by the Ferox Trout …
Rainbow trout (Oncorhynchus mykiss)
… as a game fish when stocked into angling waters. The species is also widely cultivated for food by commercial … and ecology of sea trout (Salmo trutta trutta) in Ireland. Arctic char (Salvelinus alpinus) A brief description of the biology …
Brown trout (Salmo trutta)
… and parts of northern Africa. As a favourite angling species, brown trout have been widely introduced to other temperate parts of the world. They are the most … and ecology of Atlantic salmon (Salmo salar) in Ireland. Arctic char (Salvelinus alpinus) A brief description of the …
Pink salmon (Oncorhynchus gorbuscha)
… to river systems flowing into the North Pacific Ocean, the Arctic Ocean and the Bering Sea between Siberia and Alaska. … sea. Because they die after spawning once (a semelparous species), this means that pink salmon populations typically have a two-year life cycle for migration and spawning: pink salmon born …
Research theme: Fish ageing techniques
… with new layers of growth deposited around the scale each year. These growth rings are called circuli, and the gaps … because they are easy to collect and store. For some fish species, scales are difficult to age, and other fish species have no scales at all, so bones from the …
Red Data Book Species
… in Ireland that lists our rare, endangered and threatened species. This is done under the direction of the … fish species of interest to the Red Data Book team are Arctic char and smelt. Arctic char The Arctic char is listed as …
Arctic Char Research Programme
… Arctic char as their name suggests, have a circumpolar … are lower). Historical survivors Arctic char are a relict species, which means that they are a remaining population of … depends on the maximum depth of the lake and whether other fish species are present. Because Arctic char are …
Recent publications: Corrib fish stock survey, Eel Monitoring Programme
… Recent publications: Corrib fish stock survey, Eel Monitoring … This is the second such survey on the Lough, the only other complete survey having been carried out previously in … was undertaken in 1996 – Roach have now had a thirty year period to integrate with other stocks in the lake, a …