GhostWhoVotes tweets that the first post-carbon tax announcement poll from Nielsen, presumably conducted between Thursday to Saturday from a sample of 1400, has the Coalition’s lead out from 59-41 to 61-39. Further comment superfluous, but primary votes and leadership figures, and presumably also some attitudinal stuff, to follow.

UPDATE: After falling a point short of overtaking Julia Gillard in last month’s poll, Tony Abbott has rocketed to an 11-point lead as preferred prime minister, up five points to 51 per cent with Gillard down six to 40 per cent.

UPDATE 2: Labor primary vote down a point to 26 per cent …

UPDATE 3: Michelle Grattan in the Sydney Morning Herald:

In results that will send waves of fear through the government, approval for Ms Gillard’s performance has tumbled another 3 points to 34 per cent, while her disapproval rating has jumped 3 to 62 per cent. The carbon plan has been given an unequivocal thumbs down, with 56 per cent of respondents opposed to a carbon price, 52 per cent rejecting the government’s carbon price and compensation package, and 53 per cent believing it will leave them worse off. More than half (56 per cent) say Ms Gillard has no mandate for her plan, and the same proportion want an early poll before the plan is introduced. Nearly half (47 per cent) think Bob Brown and the Greens are mainly responsible for the government’s package. More than half (52 per cent) say an Abbott government should repeal the package while 43 per cent believe it should be left in place under a new government. Ms Gillard yesterday denied she had been ringing around to gauge backbench support for her failing leadership.

The Coalition’s primary vote is up 2 points to 51 per cent, while the Greens’ is down 1 point to 11 per cent. Approval of Mr Abbott has risen a point to 47 per cent. His disapproval is down 2 points to 48 per cent … Ms Gillard’s approval rating is her worst so far and the lowest for a PM since Paul Keating’s 34 per cent in March 1995.

UPDATE (18/7/2011): Essential Research is kinder for the government, showing a slight improvement from last week’s worst-ever result for them: the Coalition’s lead is down from 57-43 to 56-44, with the Coalition down a point to 49 per cent, Labor up one to 31 per cent and the Greens steady on 11 per cent. Essential being a two-week rolling average, this was half conducted immediately before and half immediately after the carbon tax announcement, with the latter evidently having provided the better figures. I have noted in the past that, for whatever reason, Essential seems to get more favourable results for the carbon tax than phone pollsters: as well as being consistent with the voting intention findings (albeit not to the extent of statistical significance), the Essential survey also finds direct support for the carbon tax has increased since the announcement, with approval up four points to 39 per cent and disapproval down four to 49 per cent.

This raises at least the possibility that the phone polling methodology behind the recent Morgan and Nielsen results, as well as next week’s Newspoll, is skewed somewhat against the carbon tax – unless of course the internet-based Essential (or perhaps some other aspect of Essential’s methodology) is skewed in its favour. It should also be noted that Essential’s recovery only returns support to the level it was at in the June 14 survey, before a dive on July 11. For all that, respondents are just as pessimistic about their own prospects under the tax as were Morgan’s: 10 per cent say they will be better off against 69 per cent worse off, and 46 per cent believe it will be bad for Australia against 34 per cent good. Further questions inquire about respondent’s self-perceived level of knowledge about the tax, and their reactions about a range of responses to it.