Clark said: “Ted was a much-loved family pet as well as a treasured companion to Paul and Bob on Gone Fishing.
“He took fame in his little stride and loved nothing better than messing around on the riverbanks, nicking Jammie Dodgers from Bob and bait from Paul.
“He will be sorely missed both at home and on screen. We’ll never forget him.”
The BBC Two series began in 2018 and sees Whitehouse and Mortimer discuss life while fishing. It has been nominated six times for a Bafta TV award.
The programme has been shot across the UK and Ireland, including in Norfolk, Donegal, the River Dee in North Wales and Dumfries and Galloway.