The 2009 and 2010 catch records should show the impact of the set net bans on the commercial harvest. (I did not realized it has been banned for so long, time really flies)
While I have little time for torpedoes, and the poaching behavior same users partake in they still take a fraction compared with the commercial take. For comparison, 1,000,000kg of elephant fish are caught each year by commercial anglers in the management area off the South Island East Coast. How many kg would the torpedoes anglers take in one year?
For Rig, the 2009 and 2010 takes were slightly lower then the previous 5 years. Although all years have been under the TACC.
For Elephant fish, 2009 and 2010 were nearly record catches, both above the TACC. Only 2008 had a larger catch. All years they have meet or exceeded the TACC.
For Blue Moki, 2009 and 2010 had high takes. 2010 was in fact equal best with 2008.
For Butterfish, 2009 and 2010 are fairly normal years.
So there has not been a reduction in commercial take since the set net, and inshore trawling ban. What the numbers does not show is wither other areas are being hit harder, or wither more effort is being spent to catch the same number of fish.