Due to recent heavy rain and the possibility of more to come over the weekend, this survey has been rescheduled for the weekend of December 5th and 6th.

As well as increasing the health and safety risk to surveyors working along the city's watercourses, the increased levels in the rivers will likely wash away otter signs, making an accurate survey impossible.

Those people who have already signed up for the survey with Ambios should have received an e-mail letting them know of the revised dates - please make sure you respond to this and let the organisers know if you will still be able to attend on the revised dates in December.