The toxic oil spill in the Bay of Plenty will leave tonnes of dirty, sticky fuel on New Zealand beaches.
The clean up will continue today, even as “fist-sized patties about 5mm high” continue to wash up, with the weather hampering efforts to battle the spill from the crashed cargo ship Rena. It’s a looming environmental disaster.
Authorities can’t use booms to stop the spread because of the ocean conditions, and are hoping dispersants will reduce the damage. There is also some speculation marine microbes could help.
Maritime NZ has the latest on the crisis here, and the excellent folk at the New Zealand Science Media Centre have collected the following from experts:
Professor Ravi Naidu, Managing director of the Co-operative Research Centre For Contamination Assessment And Remediation Of The Environment, SA, says:
This spill could impact on the sensitive aquatic environment and life cycle of the marine ecosystem. The oil will not disappear quickly… it will be in the aquatic environment for a while. There are volatile hydrocarbons in the oil which will disperse but the oil which is not removed will continue to have an effect.
There will be some natural remediation by microbes in the coastal environment, but it may be found that these are not as active as they are in warmer tropical waters. Oil which is bound to organic matter in the sediments may be the easiest to break down—the wave action will be an advantage.
Marine ecologist Associate Professor Mark Costello, at Auckland University’s Leigh Marine Laboratory, says:
[Effectiveness of the microbes] seems to depend on what type of oil it is, and what type of environment it is, as the physical environment breaks it into smaller pieces. Dispersants, like a lot of detergents, will kill animals and plants as well. Some of the new ones may be safer, but I don’t know how safe they are. You do get natural oil and gas leaks in various parts of the world. The marine microbes which break down oil slicks seem to be pretty cosmopolitan and they break down lumps of oil in other places.
“I know people have sprayed nutrients such as nitrogen on beaches to try and speed up the growth of bacteria that would help degrade the oil—but as far as I know this has been experimental and it’s not yet clear whether it has any effect in degrading the oil faster. The nutrients could have their own knock-on effect.
It’s only early days, but already birds have died, and penguins and possibly seals and a dog have been affected. People have been told to stay away from the beach, and to avoid fish that may have come into contact with the 5km slick. It’s still not clear why the ship, which had had deficiencies noted previously, ran aground. We’ll keep you updated.
Facebook Recommendations
Read all about it
Punch live
Up to the minute Twitter chatter
@karalee_ yeah, have concluded same after cursory look at a few. Scary that some brands might actually use them
Recent posts
The latest and greatest
Schapelle has done her time
Schapelle Corby has served more than seven years in Kerobokan prison for attempting to import 4.2 kilos…
Do women need to know when to walk away?
Opposition Leader Isobel Redmond has sparked controversy over her advice that young women should sometimes…
Who murdered the Arts degree?
Have we murdered the liberal arts education? That was the final question on Monday night’s Q&A…
Nosebleed Section
choice ringside rantings
From: They must pay for one’s bitter disappointments
Michael S says:
"A teacher at Geelong Grammar had criticised her for using words that were too long, which had left her confused and had made her doubt her ability to write essays. She became ''quite distressed'' when her English marks began to fall." I can sympathise. My scholastic mentors conveyed to me a causal relationship… [read more]From: Welfare for breeders is a bonus for everyone
Change Up! says:
I have no problem paying my taxes. As a single, childless person on a very decent income, I can afford it and not have my life severely altered. Plus I understand that my taxes paying for things like schools, childcare and infrastructure is ultimately a good thing. A better community is better for me… [read more]Gentle jabs to the ribs
They must pay for one’s bitter disappointments
A private school girl’s family is sueing her elite, extremely expensive private school for not… Read more
Most commented