He said most of the country's 23 trades academies were aimed at Year 12 students and operated for one day a week, compared with two days a week for the Year 13 dual pathway students.
Manukau has about 400 students in 15 trades academies, including three academies in South Auckland schools. By contrast, it has only 160 Year 13 dual pathways students.
"They are probably adding more places in the trades academies [than the number being lost in dual pathways]," he said.
"The trades academies are very successful. Fifty per cent of those students subsequently enrol in a polytech course. That is a very high level of progress."
The transfer will increase trades academy places from 6190 to 7250 a year.
There were 1065 students in the Year 13 dual pathways pilot last year and 715 in April this year.