An 18-year-old man has been committed to stand trial for manslaughter over an alleged one-punch altercation in a Hobart nightclub.

Beau Wayne Kelly pleaded not guilty in the Magistrates Court to the manslaughter of University of Tasmania (UTAS) academic Stewart Williams.

The teenager was originally charged with assault but the charge was upgraded in May after medical and legal advice.

It is alleged Mr Kelly punched Dr Williams to the face outside Mobius Lounge Bar on Hobart's waterfront in the early hours of February 24.

Dr Williams was taken to the Royal Hobart Hospital (RHH) after the alleged assault.

His condition deteriorated and he died on March 2 in the RHH's intensive care unit.

Dr Williams was a senior lecturer at the School of Land and Food in the College of Sciences and Engineering at UTAS, where he had worked for a decade.

In a UTAS email sent to the College of Sciences and Engineering staff, Dr Williams was described as a "highly regarded academic and teacher".

Mr Kelly is on bail until his Supreme Court appearance in September.

Government to legislate against one-punch attacks

The State Government has committed to bringing in legislation that would create a new crime for fatal one-punch assaults.

The Justice Department is now conducting a review of what laws other states have introduced to tackle one-punch deaths.

Public consultation on the legislation is expected to open soon.

Last week, the State Government announced $200,000 for an advertising and education campaign aimed at reducing one-punch attacks in Tasmania.

The program, run by the Tasmanian Hospitality Association, will also aim to give young people advice on how to avoid and de-escalate violent situations.

The campaign will be modelled on a national anti-violence campaign led by boxer Danny Green and is expected to roll out by the end of year festive season.