Navigation Links
MIT scientists say ocean currents cause microbes to filter light
Date:2/24/2011

Cambridge, MA- Adding particles to liquids to make currents visible is a common practice in the study of fluid mechanics. The approach was adopted and perfected by artist Paul Matisse in sculptures he calls Kalliroscopes. Matisse's glass-enclosed liquid sculptures contain an object whose movement through the liquid creates whorls that can be seen only because elongated particles trailing the object align with the direction of the current; light reflects off the particles, making the current visible to the viewer.

Researchers at MIT recently demonstrated that this same phenomenon is responsible for the swirling patterns scientists typically see when they agitate a flask containing microbes in water; many microbes are themselves elongated particles that make the whorls visible. More importantly, they say this phenomenon occurs in the ocean when elongated microbes caught in a current align horizontally with the ocean surface, affecting how much light goes into the ocean and how much bounces off as backscatter. Because many ocean microbes, like large phytoplankton, have either an elongated shape or live in communities of long chains, this orientation to ocean currents could have a substantial effect on ocean light which in turn influences photosynthesis and phytoplankton growth rates as well as on satellite readings of light backscatter used to inform climate models or assess algal blooms.

In a quiescent ocean, phytoplankton are randomly oriented and light filters through easily. This random arrangement is usually assumed in models of light propagation in the ocean and in satellite readings. But fluid flow can change things.

"Even small shear rates can increase backscattering from blooms of large phytoplankton by more than 30 percent," said Roman Stocker, Professor of Civil and Environmental Engineering at MIT and lead author on a paper about this work. "This implies that fluid flow, which is typically neglected in models of marine op
'/>"/>

Contact: Denise Brehm
brehm@mit.edu
Massachusetts Institute of Technology
Source:Eurekalert

Page: 1 2

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2015)... 2015 SoundView Technology Group issues a new research ... ) Wocket smart wallet. SoundView was one of the selected user ... with the Wocket in multiple scenarios and outlets. ... other retailers, making both debit and credit card payments.  ... "If the company meets their plans in 2015, it would ...
(Date:3/20/2015)... DUBLIN , Mar. 20, 2015 Research ... announced the addition of the "India Sensors ... their offering. The sensor market is ... through 2020 Consumer electronics, automotive, industrial ... for sensors in the country. In addition, adoption ...
(Date:3/19/2015)... March 19, 2015  NXT-ID, Inc. (NASDAQ: NXTD ... on the growing mobile commerce market, announces its biometric payment ... clip that aired this week on Washington DC,s ... In a segment "The Next Great Thing", host ... way to pay, and ,a really big breakthrough in mobile ...
Breaking Biology News(10 mins):Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 2India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 3NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3
... TAMPA, Fla. (Nov. 19, 2012) In three studies published in ... of the National Academy of Inventors , innovators unveil creative ... of energy, and change our lives. Untapped energy in ... and in Florida,s ocean waves can be captured and used, said ...
... has applied for a patent for a genetically-engineered vaccine strategy ... body structures that are the first sites of contact with ... last a lifetime, the vaccine will lead to the continual ... system. Another feature of the vaccine system is that it ...
... with histonesthe proteins that package DNAregulate many fundamental cell activities ... or blood cells becoming leukemic. These interactions are governed by ... chemically modify histones signaling them to clamp down tighter on ... expressed. In the November 19, 2012, online ...
Cached Biology News:New energy technologies promise brighter future 2New energy technologies promise brighter future 3Texas Biomed files patent for a novel HIV vaccine strategy 2Fruit fly studies guide investigators to misregulated mechanism in human cancers 2Fruit fly studies guide investigators to misregulated mechanism in human cancers 3
(Date:4/23/2015)... CA (PRWEB) April 23, 2015 Athena ... personal development of executive women in San Diego’s technology ... the 17th Annual Pinnacle Awards at their Gala on ... Hyatt Hotel. Register now at http://athenasd.org/events/ , ... support the Athena San Diego vision of fostering networking, ...
(Date:4/23/2015)... , April 23, 2015  Neurocrine Biosciences, Inc. (Nasdaq: ... report its first quarter 2015 results before the Nasdaq ... then host a live conference call and webcast to discuss ... morning, April 30, 2015 at 8:00 a.m. Eastern Time ... the live conference call by dialing 866-952-1906 (US) or ...
(Date:4/23/2015)... Prospects for Leading Companies in ... Details   We predict the global healthcare ... in 2015 and will grow at a CAGR of 6.3% ... around the world and increasing functional requirements for healthcare packaging ... global healthcare packaging market. A global ageing population, ...
(Date:4/23/2015)... April 23, 2015 /PRNewswire/ - Crystal Research Associates, LLC ... Overview ® (EIO) on Aeterna Zentaris Inc. (NASDAQ: ... available on Crystal Research Associates, website at ... website at www.aezsinc.com . Aeterna Zentaris ... biopharmaceutical company in oncology, endocrinology, and women,s health. With ...
Breaking Biology Technology:Athena Pinnacle Awards to Honor Executives, Corporations and Educators Working to Promote Women Leaders 2Neurocrine Biosciences Announces Conference Call and Webcast to Report First Quarter 2015 Results 2Healthcare Packaging Market Forecast 2015-2025 2Healthcare Packaging Market Forecast 2015-2025 3Healthcare Packaging Market Forecast 2015-2025 4Healthcare Packaging Market Forecast 2015-2025 5Healthcare Packaging Market Forecast 2015-2025 6Healthcare Packaging Market Forecast 2015-2025 7Healthcare Packaging Market Forecast 2015-2025 8Healthcare Packaging Market Forecast 2015-2025 9Healthcare Packaging Market Forecast 2015-2025 10Crystal Research Associates, LLC Issues Executive Informational Overview (EIO) on Aeterna Zentaris Inc. 2Crystal Research Associates, LLC Issues Executive Informational Overview (EIO) on Aeterna Zentaris Inc. 3
... Hospital (TSH),Canada,s largest urban community hospital, has selected ... physicians. The,implementation of Chyma(TM) for their team of ... ER departments at the two hospital campuses and ... medicine., "Chyma(TM) reflects the commitment of the ...
... Mass., June 2 RainDance Technologies, Inc.,a ... health and,disease research, today announced the appointment ... effective immediately., "As RainDance solutions enter ... to establish our manufacturing and financial capabilities,",said ...
... announced the,release of a new and exciting module ... experience with different techniques and,alternative approaches to the ... The GYN module is the latest addition to ... Mentor, the world,s most advanced,laparoscopic surgery simulator. The ...
Cached Biology Technology:Canada's Largest Urban Community Hospital Chooses Chyma(TM) On-Call Physician Scheduling Technology 2RainDance Appoints Kelly Chief Operating Officer 2Simbionix Takes Non-Invasive GYN Surgical Training to the Next Level 2
This CLS number is a new product number, created to easily match Cornings product number. If showing no availability yet, please order under the old Sigma-Aldrich number (F1676) or contact customer s...
... CLS number is a new product ... product number. If showing no availability ... Sigma-Aldrich number (E6152) or contact customer ... H diam. 11.25 6.40 ...
A convenience pack containing one each of the most popular sizes of Cat. No. 4980 flask. Designed for the low volume user, a case contains one each of five sizes: 50mL, 125mL, 250mL, 500mL, and 1L....
...
Biology Products: