An MP bagged a 37lb 7oz mirror during a successful trip to Walthamstow Reservoirs.
Scott Mann took a break from what he called the “parliamentary hothouse” to bag the new personal best from reservoir two at the London complex.
The Conservative member for North Cornwall was taking part in a trip organised by the All-Party Parliamentary Angling Group.
Former MP and current Angling Trust policy chief Martin Salter also got in on the action, catching 25 fish to 21lb during a 24-hour session in search of bream on reservoir one.
Scott Mann, who is backing outsider Mark Harper in the current Tory leadership race, said: “It was great to get away from the parliamentary hothouse and spend some quality time with the guys from the Angling Trust fishing on Thames Water's amazing Walthamstow fishery in the heart of London.
“It's good see a water company opening up their reservoirs to the community, especially when they offer anglers like myself a chance of landing personal-best specimens in fabulous surroundings."
Walthamstow Reservoirs have been extensively restocked since a major fish kill occurred in 2017.
Thames Water’s Will Barnard said: “After a tricky period, our Walthamstow fishery is thriving again.
“We have some of the best bream and carp fishing in the country available at an affordable price in the middle of our capital city.”
Martin Salter added: “We are lucky to have the support of MPs like Scott Mann and his other colleagues in parliament and we do our best to get them out on the bank to learn more about the issues that matter to fish and fishing.
“Of course, it’s even better if we can help them catch the fish of their dreams!”