With otters such as this little guy pictured now being found in most rivers in Britain, the population appears to be doing rather well. There are now thought to be around 10,000 of them in Britain. Whilst this is good news for the species it seems it is bad news for koi enthusiasts. Otters are good at climbing and digging and are naturally drawn to ponds full of large well fed fish. One man interviewed has lost 15 of his carp whilst another found the remains of a £200 fish on his patio. Householders in some areas are now being warned to protect their ponds with metal grids. For those considering more drastic measures they should be reminded that otters are protected and anyone attempting to kill them or disturb them can be fined up to £5,000 or jailed for six months.