Market price and farm gate price are quite different. Farm gate price is the value that the fresh product can be sold for at harvest. Market price can have many points throughout the post-harvest value chain (i.e. auction, wholesale market, supermarket or restaurant) right through to when it is sold to the end consumer. For simplicity, farm gate price is an easy comparison to production cost to determine profitability.
Currently the core aquaculture species that are commercially produced in NZ are:
Other species are farmed but their combined commercial value is minimal. Some species are still in the research or pre-commercial stages and these include sea cucumbers, kina, rock lobsters, kingfish and hapuka. Trout (Rainbow trout) is a species that has great potential for land based farming in NZ but it is currently illegal to farm this species.
The following map shows where the different species are farmed in NZ.
The New Zealand Government has produced a list of species that may be legally farmed in New Zealand (106 in total). That list of potential aquatic species can be found at the following page:
All other species including trout are not able to be farmed in New Zealand.