The Invertebrate Fauna of the River Spey by Craig Macadam

The study Following concerns about changes in the aquatic invertebrate populations of the River Spey, the Spey Fishery Board commissioned an analysis of historical data to determine any trends in species of importance to anglers, and whether there are any indications of changes in water quality or flow. Data collected by SEPA at Spey mainstem sites, over a 39 year period, from 1981 to 2019 were obtained and analysed. Invertebrates are at the heart of freshwater ecosystems. ?Changes to the invertebrate fauna impacts the food web and can have a detrimental effect on game fisheries. Invertebrates are found in almost…

Source: Spey Fishery Board – The Invertebrate Fauna of the River Spey by Craig Macadam