i am suspicious of "science". our new snapper regs were introduced on the back of a knee-jerk 3 month ban. it seems science can evolve at a rapid rate when it is deemed required. likewise green zone science moved along rapidly. science brought us the cane toad (via the cane beetle) and a myriad of other pests.
if anyone has a short memory about the annihilation of orange roughy and the current "science" that allows this species to still be commercially harvested, spend a minute here: http://www.amcs.org.au/default2.asp?active_page_id=358
these fish allegedly live to 150 years and do not breed until they are 25-30. the fact they are still being harvested is shameful.