Research theme: Fish ageing techniques
… Fish ageing is a fundamental element of fisheries research and provides scientists with lots of valuable … 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 …
Arctic char (Salvelinus alpinus)
… The Arctic char is native to Ireland, and its geographic range also … Russia. In Ireland, the Arctic char is a glacial relict species, which means that char populations found in Ireland … char populations. Freshwater Threatened Related Species Brown trout (Salmo trutta) A brief description of the biology …
Ferox trout (Salmo ferox)
… 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 Study in Lough Corrib and Lough …
Research theme: Tagging and telemetry
… to study the lives and habits both of highly mobile fish species that migrate long distances (e.g. blue shark) and of … which tend to live all their lives in one area (e.g. brown trout). The migratory habits of the tagged fish are … Ultimately, the tagging method used will depend on the research question to be answered, budget, the habitat (e.g. …
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 …
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 ecology of Atlantic salmon (Salmo salar) in Ireland. Arctic char (Salvelinus alpinus) A brief description of the …
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 … of climate change. Sadly, recent Inland Fisheries Ireland research shows an overall decline in this species. This …
Brown trout (Salmo trutta)
… and parts of northern Africa. As a favourite angling species, brown trout have been widely introduced to other … and ecology of Atlantic salmon (Salmo salar) in Ireland. Arctic char (Salvelinus alpinus) A brief description of the biology …
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 …
Research theme: Electrofishing
… than other methods. If we are interested in a particular species of fish and need to learn more, we can target certain … broken and appears to bubble or boil. If we want to find brown trout, they are most often in the deeper flowing … National Brown Trout Programme Climate Change Mitigation Research Programme | CCMRP The CCMRP aims to assess 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 …