[Coral-List] New paper on toxicity of benzophenone-2 on coral planulae

Vanessa Lovenburg vanessa.lovenburg at zoo.ox.ac.uk
Wed Jan 22 12:52:42 EST 2014

I had been waiting awhile for this paper to come out! I work for Operation Wallacea for my field seasons and I am always telling all of the volunteers who come out to work in coral reef conservation research that they are undermining their efforts when they apply non-zinc based sunscreens…it’s very frustrating though because most of the remote field stations only have access to benzophenone containing sunscreens. I am probably responsible for a lot of pasty British kids’ future skin cancer problems…but maybe I saved a coral or two?! :-\

Thanks for sending this around…and well done!

Best wishes,
Vanessa Lovenburg
DPhil Candidate
Ocean Research and Conservation
Department of Zoology
University of Oxford
01865 281 329
Prof. Alex D. Rogers, Dr. Martin Speight 

On 22 Jan 2014, at 16:49, Cheryl Woodley - NOAA Federal <cheryl.woodley at noaa.gov> wrote:

> Hi Coral-List Members,
> I would like to draw your attention to a new publication on the toxicity of
> a UV blocking compound, Benzophenone-2 and its effects on Stylophora
> planulae and in a coral cell bioassay.
> The article is in the journal Ecotoxicology.  A link to the article can be
> found at  http://link.springer.com/article/10.1007/s10646-013-1161-y
> Below is the abstract for the paper:
> Toxicological effects of the sunscreen UV filter, benzophenone-2, on
> planulae and in vitro cells of the coral, *Stylophora pistillata*
> C. A. Downs • Esti Kramarsky-Winter • John E. Fauth • Roee Segal •Omri
> Bronstein • Rina Jeger • Yona Lichtenfeld • Cheryl M. Woodley •
> Paul Pennington • Ariel Kushmaro • Yossi Loya
> Accepted: 7 December 2013
> Abstract Benzophenone-2 (BP-2) is an additive to personal-care products and
> commercial solutions that protects against the damaging effects of
> ultraviolet light. BP-2 is an ‘‘emerging contaminant of concern’’ that is
> often released as a pollutant through municipal and boat/ship wastewater
> discharges and landfill leachates, as well as through residential septic
> fields and unmanaged cesspits. AlthoughBP-2may be a contaminant on coral
> reefs, its environmental toxicity to reefs is unknown. This poses a
> potential management issue, since BP-2 is a known endocrine disruptor as
> well as a weak genotoxicant. We examined the effects of BP-2 on the larval form
> (planula) of the coral, Stylophora pistillata, as well as its toxicity to
> in vitro coral cells. BP-2 is a photo-toxicant; adverse effects are
> exacerbated in the light versus in darkness. Whether in darkness or light,
> BP-2 induced coral planulae to transformfromamotile planktonic state to a
> deformed, sessile condition. Planulae exhibited an increasing rate of
> coral bleaching in response to increasing concentrations of BP-2. BP-2 is a
> genotoxicant to corals, exhibiting a strong positive relationship between
> DNA-AP lesions and increasing BP-2 concentrations. BP-2 exposure in the
> light induced extensive necrosis in both the epidermis and gastrodermis. In
> contrast, BP-2 exposure in darkness induced autophagy and autophagic cell
> death. The LC50 of BP-2 in the light for an 8 and 24 h exposure was 120 and
> 165 parts per billion (ppb), respectively. The LC50s for BP-2 in darkness
> for the same time points were 144 and 548 ppb. Deformity EC20 levels (24
> h) were 246 parts per trillion in the light and 9.6 ppb in darkness.
> These are links to press responses to the paper:
> http://www.prunderground.com/sunscreen-chemical-in-soaps-cosmetics-body-fragrances-threaten-coral-reefs-says-haereticus/0031720/
> http://www.jpost.com/Enviro-Tech/Israeli-American-researchers-identify-coral-reef-toxin-in-hundreds-of-beauty-products-338449
> -- 
> Cheryl M. Woodley, Ph.D.
> Coral Health and Disease Program
> Center for Coastal Environmental Health and Biomolecular Research
> Hollings Marine Laboratory
> 331 Fort Johnson Rd
> Charleston, SC 29412
> 843.762.8862 Phone
> 843.762.8737 Fax
> cheryl.woodley at noaa.gov
> _______________________________________________
> Coral-List mailing list
> Coral-List at coral.aoml.noaa.gov
> http://coral.aoml.noaa.gov/mailman/listinfo/coral-list

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