Navigation Links
Sunlight and bunker oil a fatal combination for Pacific herring
Date:12/26/2011

th various, sometimes unknown, substances.

The study builds on research following the 1989 Exxon Valdez spill, which released up to 32 million gallons of crude oil into the comparatively pristine environment of Prince William Sound, Alaska. That research established a new paradigm for understanding the effects of oil toxicity on fish at early life stages.

The new study suggests that this old paradigm is inadequate to explain the dramatic, lethal effects of very low levels of oil on fish embryos, even in an urban estuary with preexisting background pollution.

"Based on our previous understanding of the effects of oil on embryonic fish, we didn't think there was enough oil from the Cosco Busan spill to cause this much damage," Cherr said. "And we didn't expect that the ultraviolet light would dramatically increase toxicity in the actual environment, as we might observe in controlled laboratory experiments."

Researchers began the new study in February 2008. They analyzed the levels of oil-based compounds in caged herring embryos at four oiled and two non-oiled subtidal sites, all of which were at least 1 meter below the water's surface. Naturally spawned embryos from shallower sites were also analyzed.

Three months after the spill, caged embryos at oiled sites showed nonlethal heart defects typical of oil exposure.

But embryos from the shallower, intertidal zone not only exhibited the nonlethal heart defects, they also showed surprisingly high rates of dead tissue and mortality unrelated to heart defects.

"These embryos were literally falling apart with high rates of mortality," said Cherr.

In 2008, almost no live larvae hatched from the natural spawn collected from oiled sites.

The high death rates did not seem to be caused by natural or manmade causes unrelated to the spill, the researchers report. No toxicity was observed in embryos from unoiled sites, even those near major highways.'/>"/>

Contact: Gary Cherr, UC Davis Bodega Marine Laboratory
gncherr@ucdavis.edu
707-799-9947
University of California - Davis
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Turning sunlight into liquid fuels
2. The sunlight solution for better health
3. Beyond sunlight: Explorers census 17,650 ocean species between edge of darkness and black abyss
4. Study explores link between sunlight, multiple sclerosis
5. Early Earth absorbed more sunlight -- no extreme greenhouse needed to keep water wet
6. California team to receive up to $122 million to develop method to produce fuels from sunlight
7. Exposure to early evening sunlight in spring creates teenage night owls
8. Scientists clock on to how sunlight shapes daily rhythms
9. Tall order sunlight-to-hydrogen system works, neutron analysis confirms
10. Sunlight can influence the breakdown of medicines in the body
11. NSF announces new awards that will investigate more efficient ways to harvest sunlight
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... 2015 /PRNewswire/ - Today, FindBiometrics, the leading source of biometrics industry ... new website design. "When we launched FindBiometrics 12 ... Peter O,Neill , founder and CEO of FindBiometrics. "Now it,s ... from the key players on a very broad scale.  We ...
(Date:1/22/2015)... Hall E -   EyeLock Inc. , a market leader ... its EyeLock ID technology integrated in a 3D printed automobile ... Ridge National Laboratory (ORNL) at the 2015 North ... is being used to validate the driver and authorize the ...
(Date:1/22/2015)... Jan. 16, 2015  A man-made form of insulin delivered ... mental capabilities in adults with mild cognitive impairment and ... by researchers at Wake Forest Baptist Medical Center. ... amnesic mild cognitive impairment (MCI) or mild to moderate ...
Breaking Biology News(10 mins):Identity Industry Leading Publication Debuts New Look As Biometrics Hit Mainstream 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3
... School of Medicine (BUSM) have found a link ... HIV-infected persons. The study appears online in the ... Deficiency Syndromes., Alcohol use is common among HIV-infected ... has been examined in in-vitro, animal and human ...
... Pacific Northwest National Laboratory,have discovered a way to ... creation of a portable biosensor that can address ... nerve agents, the need to quickly distinguish between ... The sensor components resemble a pregnancy test ...
... biological systems engineering, is leading the team of ... Sciences ( www.cals.vt.edu ) at Virginia Tech ( ... convert poultry litter into bio-oil, providing an economical ... issues. Agblevor will present the research during ...
Cached Biology News:Study shows link between alcohol consumption and hiv disease progression 2Truly sick or simply scared? 2Thermochemical process converts poultry litter into bio-oil 2
(Date:2/26/2015)... -- On behalf of biotech client GenScript USA, ... & Spitzer, P.A. (Wilentz) secured a significant jury verdict ... excess of $10 million. The jury determined that Genewiz ... it improperly hired one or more of GenScript,s employees.  ... notwithstanding the verdict, a new trial, and remittitur. ...
(Date:2/26/2015)... 2015 Protiviti ( www.protiviti.com ), a global ... Governance Portal , designed to increase the efficiency ... tasks across multiple business units and projects. The Governance ... better align their controls with the COSO ( Committee ... In response to client feedback, Protiviti has also included ...
(Date:2/26/2015)... , Feb. 26, 2015 The healthcare landscape is ... arena, Frost & Sullivan will host its 20 th ... MindXchange , March 8 to 10, at the Hilton San ... This event is a platform for ... to discuss industry disruptions and how to succeed in an ...
(Date:2/26/2015)... 26, 2015 RURO, Inc., a leading ... version 6.2 – the latest update to the bestselling ... that of a quick and easy method to gain ... latest version, RURO engineering has enhanced the system’s support ... large amounts of sample records. , "FreezerPro has ...
Breaking Biology Technology:Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 2Wilentz Client GenScript Awarded $10 Million in Trade Secrets Case Against Genewiz 3Protiviti Governance Portal Helps Companies Drive Governance, Risk and Compliance Productivity Across Multiple Business Units 2Protiviti Governance Portal Helps Companies Drive Governance, Risk and Compliance Productivity Across Multiple Business Units 3Embrace the Future of Medical Technologies with Frost & Sullivan 2Embrace the Future of Medical Technologies with Frost & Sullivan 3RURO Releases FreezerPro® version 6.2 2
... Jan. 29 Meet Kenny Twist and ... film, "Cell Side Story," developed by students at Atkins Academic and ... and other community partners. , "Cell Side Story" is a love ... within cells. Kenny Twist represents kinesin, a motor protein ...
... studied how atoms and molecules structure themselves into intricate ... in engineering artificial systems that could self-assemble into any ... Science , a team from Harvard led by ... how and why groups of atoms and molecules may ...
... Jan. 28 The 2009 BBVA Foundation Frontiers of Knowledge ... Richard N. Zare , of Stanford University , and ... Maryland , for their independent, fundamental contributions to describing the world ... and the underlying interactions between them by enabling us to view ...
Cached Biology Technology:New Musical 'Cell Side Story' Puts Science on Stage 2New Musical 'Cell Side Story' Puts Science on Stage 3Using magnetic toys as inspiration, researchers tease out structures of self-assembled clusters 2Using magnetic toys as inspiration, researchers tease out structures of self-assembled clusters 3Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 2Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 3Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 4Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 5Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 6Zare and Fisher Win the BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for Rendering Molecules Visible and Analyzing Their Collective Behavior 7
... Rapid-Screen cDNA Library Panels were designed for ... sets of PCRs to identify the desired ... performed in a 96-well "Master Plate," where ... clones. Having identified the positive well(s) by ...
... 295 ex can measure three fluorescence lifetimespicoseconds ... a few minutes. To match the absorption ... tryptophan, the Protein 295 exs excitation source ... emitting 295 nm. Fluorescence of tryptophan is ...
... Microarrays designed for proteomic scale kinase ... and drug discovery research built on the ... platform. These microarrays are available as part ... Peptide Microarray Service. Probe Content ...
... The F-7000 is a research grade ... bandwidth and scanning speeds of up to ... provides a high concentrated light beam along ... works with our FL Solutions, PC fluorescence ...
Biology Products: