Installing shark warning signs at Oamaru Harbour "might be an overreaction", Waitaki District Council chief executive Alex Parmley says.
Police approached the council about putting up signs in the harbour area after Alvira Repia-King, 13, was bitten by a shark a week ago near Holmes Wharf, and needed 52 stitches.
The shark, described by witnesses as dark grey and about 1.8m long, was believed to be a sevengill.
Parmley said while the council had not ruled out putting up warning signs, he was not convinced they would prevent future incidents.