The search was called off last week.
They are raising money to search for the missing man themselves.
"Every minute, hour, day that goes by that window of opportunity to find them alive is closing."
The black petrel is unique to New Zealand and vulnerable.
John Bulkeley says cattle ships are not built to allow water to escape.
Winston Peters says it's only responsible to explore what's possible.
On Friday, the Japanese coast guard called off its search.
Forty crew members, including two New Zealanders, remain unaccounted for.
Two New Zealanders were onboard the ship.