Fishing on Hampstead Heath

There have been countless incidents of wildfowl injured by fishing
tackle.  Today I learned that Heath rangers were so intimidated by
fishermen who had been requested to  clear up their mess and desist from
fishing that they withdrew from the Vale of Health pond, only returning
to take away the rubbish after the fishermen had left.    When Heath
staff posted notices suspending fishing from the Vale of Health, fearing
for the safety of the pair of swans and their eggs, the notices
"disappeared" (three times!).   The cygnet which hatched from one of the
eggs last Friday has disappeared.   The only pond which has not suffered
loss of cygnets is number 1 pond at East Heath, where there is no
fishing.    I have a July 1973 map of the Heath and Hampstead which
shows only three ponds where fishing is permitted:   Vale of Health,
number 1 pond and number 2 pond at Highgate.    Over the years fishermen
have appropriated ponds 2 and 3 at East Heath and the Viaduct Pond with
- I believe - adverse effects on wildlife.    Is it not time for the
Corporation to seriously consider banning fishing outright unless under
the direct supervision (for instruction purposes) of a qualified member
of staff?