"You can eat sea lettuce, you can make fuel from sea lettuce, you can make fertiliser from sea lettuce, but really there's an opportunity to farm sea lettuce.
"So you can stop seeing it as a nuisance and start seeing it at a resource to utilise carefully and link the environment with the economy."
Hundreds of tonnes of sea lettuce wash up on the shores of Tauranga Harbour each year, where it dries, rots and emits a particularly unpleasant odour.
Responding to residents' complaints, the Tauranga City Council scrapes the smelly algae off the shore and takes it away.
Tauranga Harbour programme co-ordinator Bruce Gardener is this summer trialing the use of sea lettuce as a garden mulch and fertiliser.
Head of Aquaculture at the Bay of Plenty Polytech Dr Simon Muncaster, also speaking at the symposium, said in order to farm sea lettuce in the Bay research would have to be done to understand the best growing conditions, required nutrient levels, ideal temperatures and how to control the algae's reproductive cycle.
A Centre of Excellence for Aquaculture would provide the necessary expertise and research capability to inform potential investors in sea lettuce farms or other aquaculture business, he said.
Dr Muncaster used his speech at the symposium to call for an aquaculture research facility to be set up in Tauranga.
Such a facility could partner with businesses to see the Western Bay develop its aquaculture potential, he said.
"I think that if you want to grow aquaculture in the Bay of Plenty it's logical to try and initiate the generation of knowledge to do that locally."
Aquaculture was an under-utilised industry in the Bay of Plenty, he said.