Tench Snowlynx, I have caught these just into double figures but not has large has this (see link.) Tring reservoirs hold good fish which is also good for bird watching at least it was many years ago. But they now tell me car theft is on the rise again, incidentally I know longer fish mainly because I consider it cruel, another age thing I expect, that and the fact I got fed up with clearing up people’s rubbish.
Wow, they certainly can get to be a good size, can't they? One of the volunteers at Rye Meads told us they don't know how the fish got into the ponds, but that some streams feed in from the River Lea and it must have come in that way.
It is possible it came from the river Lea as is dispersal by water fowl Rowanberry, e.g. carried on legs or feathers; I also believe live spawn can also be found in the bird faeces having survived having entered the gut.
Snowlynx the Tench is part of the carp family, also called the doctor fish has its mucus skin is supposed to cure other fish by rubbing up against it, an urban myth though.
This is a PDF file therefor it needs to be down loaded
Google – Thienemann 1950 translation the transport of aquatic animals by birds.
This link contradicts the first findings although there is no concrete evidence to prove otherwise...