The Marine Bill passed its second stage, on 5 March 2012.
The bill contains provisions for marine planning and nature conservation within Northern Ireland's territorial waters.
Steven Agnew of the Green Party said he felt "good governance" would mean economic benefits would not be placed against environmental concerns.
The TUV's Jim Allister questioned the "geographical extent of the bill".
In response, Environment Minister Alex Attwood said all loughs would be subject to the reach of a Marine Bill.
He added that the chamber would be more efficient if everyone had a "forensic mind" like Mr Allister.
Mr Attwood said he would respond to the environment committee regarding other matters members had raised.
The second stage passed on an oral vote.
The first part of the debate can be viewed