sentences:  Pont in 1604 – 08 writes that salmon are plentiful in the River Irvine.The river system contains, amongst others, brown trout, sea trout, salmon, eels, minnows, lampreys, and sticklebacks.The brown colour of the Irvine at places like Darvel and Newmilns is not a result of pollution, but simply organic material washed out of the peat banks at the watershed.