The Arctic charr holds some good titles to its name. It is the world’s most northerly distributed freshwater fish with a range extending from Ellesmere Island in Northern Canada (82°N) to high altitude lakes in the UK and central Europe. It is also commonly referred to as the world’s most diverse vertebrate and across its range, the Arctic charr is found to be highly polymorphic, often represented by several discrete ecotypes within a single lake.
We've given the blog over to Ellie Ward, a PhD student at Durham University, to tell us more about these enigmatic fish.....