when we used to sleep on the nets, so as not to get riaded by other fisherman poachrs etcyou would here them ,plopping in the river plus if you had a torch you would see them ,lamped several over the last ten yrs some people still treat them as vermin ,was lamping round biggar one night saw a big dog otter nice beastie ,plenty seals localy thats another story there was a few families of them up near gifford and surrounding fisheries but they seemed to have moved on or shot ,