Weir Science: hi-tech counters detect Tweed’s second highest number of salmon on record

If you thought a fish counter is where you choose fish at Morrisons, think again. These infra-red scanners and cameras were first installed in some areas of Scotland’s Tweed District in the year 2000 and three hi-tech versions now monitor salmon levels. The good news is that two tributaries saw the second highest number of… Read the full press release