Navigation Links
Barnacles prefer upwelling currents, enriching food chains in the Galapagos
Date:3/2/2010

PROVIDENCE, R.I. [Brown University] There's been a rich debate in marine ecological circles about what happens to a key food source along rocky coastlines dominated by upwelling. The literature is filled with studies suggesting that the larvae of simple prey organisms such as barnacles and mussels hitch a ride on the coast-to-offshore currents typical of upwelling and are thus mostly absent in the coastal tidal zones.

That theory is getting a major challenge. In a paper in Ecological Monographs, Brown University marine ecologist Jon Witman and colleagues report that a key thread in the food web, the barnacle the popcorn of the sea flourishes in zones with vertical upwelling. Working at an expansive range of underwater sites in the Galapagos Islands, Witman and his team found that at two subtidal depths, barnacle larvae had latched onto rock walls, despite the vertical currents. In fact, the swifter the vertical current, the more likely the barnacles would colonize a rocky surface, the team found.

The finding "is counter to the prevailing notion about how marine communities are influenced by upwelling," said Witman, professor of biology in the Department of Ecology and Evolutionary Biology.

Barnacle communities thrived in the vertical-current sites, the team also found. The group routinely found specimens that had grown from one field season to the next to 3 centimeters (about 1 inch) in diameter "big enough to make soup out of," Witman said. The researchers also documented the presence of whelks and hogfish, which feast on barnacles. This predator-prey relationship shows that vertical upwelling zones are "much more dynamic ecosystems in terms of marine organisms than previously believed," Witman said.

Witman and his team, including Brown graduate student Margarita Brandt and Franz Smith of CSIRO Marine and Atmospheric Research in Australia, chose a dozen sites of underwater cliffs, ledges and slopes along a
'/>"/>

Contact: Richard Lewis
Richard_Lewis@Brown.edu
401-863-3766
Brown University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Barnacles go to great lengths to mate
2. Non-toxic hull coating resists barnacles, may save ship owners millions
3. Nontoxic hull coating resists barnacles, may save ship owners millions
4. Girls prefer pink, or at least a redder shade of blue
5. Ripe fruit preferred
6. Female katydids prefer mates cool in winter and hot in summer
7. Study finds connections between genetics, brain activity and preference
8. Researchers at UH explore patient preferences for personalized medicine
9. Analysis of fresh strawberries reveals consumer preferences
10. No place like home: Africas big cats show postcode preference
11. You say offset, I say tax? Study suggests labels and political affiliation may affect preferences
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Barnacles prefer upwelling currents, enriching food chains in the Galapagos
(Date:10/28/2014)... awards to expand the Office of Rare Diseases ... Translational Sciences (ORDR-NCATS) collaborative Rare Diseases Clinical Research ... at 22 consortia will work with 98 patient ... new treatments for patients with rare diseases. The ... fiscal 2014 funding from NIH. , Rett syndrome, ...
(Date:10/28/2014)... will be building a hybrid micro-grid which will ... first in the region, the hybrid micro-grid will ... tidal-current, diesel, storage and power-to-gas technologies, and ensure ... be built under the new Renewable Energy Integration ... be located offshore at Semakau Landfill and is ...
(Date:10/27/2014)... are an indigenous species of the West Antarctic Peninsula ... Earth. Since 1950, the average annual temperature in the ... and 6 degrees Celsius during winter. , As ... dry, polar system to a warmer, sub-polar system with ... a connection between local weather conditions and the weight ...
Breaking Biology News(10 mins):NIH's ORDR-NCATS RDCRN & NICHD awards U54 cooperative agreement for natural history study 2NIH's ORDR-NCATS RDCRN & NICHD awards U54 cooperative agreement for natural history study 3NTU to build region's first renewable energy integration demonstration micro-grid 2NTU to build region's first renewable energy integration demonstration micro-grid 3University of Delaware study connects penguin chick weights to local weather conditions 2University of Delaware study connects penguin chick weights to local weather conditions 3
... replacements, biomaterials have become big business. But scientists pursuing ... How will a biomaterial on the lab bench actually ... the new material or suffer an inflammatory response? And ... , To tackle such questions, researchers at the ...
... mechanisms is the neural machinery that triggers the hungry ... same machinery swings the other way after a hearty ... of the siesta. However, scientists have understood little about ... and other energy-related behaviors. , Now, in an article ...
... of the species known as social amoebas has been plotted ... clues to the evolution of life on earth. , Researchers, ... of York, and biochemist Professor Pauline Schaap, of the University ... 100 or so known species of social amoeba. , ...
Cached Biology News:Finding the right mix: A biomaterial blend library 2New mechanism explains glucose effect on wakefulness 2New mechanism explains glucose effect on wakefulness 3Scientists' cell discovery unearths evolutionary clues 2Scientists' cell discovery unearths evolutionary clues 3
(Date:10/30/2014)... Oct. 30, 2014  Ardelyx, Inc. (NASDAQ: ... on cardio-renal, gastrointestinal and metabolic diseases, today announced ... results on Thursday, November 6, 2014. Following the ... live conference call and webcast at 4:30pm ET ... a business update. The live webcast ...
(Date:10/30/2014)... Texas (PRWEB) October 30, 2014 ... Naltrexone HCL Industry” is a professional and in-depth ... report provides basic Naltrexone HCL information, including its ... well as industry overview. This research covers the ... well as global industry analysis covering macroeconomic environment ...
(Date:10/30/2014)... October 30, 2014 SoundConnect ... provider, offers Office 365 end users the key ... complete phone system by adding voice enablement and ... includes Lync Online, a communication tool that includes ... With hosted voice, O365 becomes a comprehensive unified ...
(Date:10/30/2014)... MA (PRWEB) October 30, 2014 James Sherley ... advance in adult tissue stem cell technology since his days ... (FCCC) in Philadelphia in the late 1990’s. Sherley founded ... The company holds all the intellectual property developed in ... professor at the Massachusetts Institute of Technology (MIT), and more ...
Breaking Biology Technology:Ardelyx to Report Third Quarter 2014 Financial Results on November 6, 2014 2Naltrexone HCL Market & Nalbuphine HCL Industry Analysis for Global, China Regions Now at DeepResearchReports.com 2Naltrexone HCL Market & Nalbuphine HCL Industry Analysis for Global, China Regions Now at DeepResearchReports.com 3SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 3Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 2Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 3Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 4
... Varian, Inc.,(NasdaqGS: VARI) today announced a plan to ... to close certain facilities. , ... economic environment,we are taking proactive steps to reduce our ... while continuing to invest in new product,development and maintaining ...
... Associates, Inc.,(SullivanCotter) has published its 16th 2008 Physician ... Notable findings this year,include an average salary increase ... physicians. Nearly three-quarters (72%) of the survey,participants ... 2008,which is comparable to last year, when 73% ...
... have entered into a research collaboration to improve insect control in ... ... Research Triangle Park, NC (Vocus) January 15, 2009 -– DuPont and ... improve insect control in corn and soybeans. Under the agreement, ...
Cached Biology Technology:Varian, Inc. Announces Cost Reduction Plan 2Despite Economic Woes, Physician Compensation Increases 2Despite Economic Woes, Physician Compensation Increases 3DuPont and Athenix Collaborate to Advance Insect Control in Corn, Soybeans 2DuPont and Athenix Collaborate to Advance Insect Control in Corn, Soybeans 3
Mouse Wnt-9b Affinity Purified Polyclonal Ab Keywords: Wnt 9b Protein Family: Cancer Stem Cell Markers, Wnt Ligands...
One-step, microplate or cuvet, colorimetric, linear detection range 0.7 mg/dL to 35 mg/dL. Procedure: 5 min....
assays for phosphatase, lipase, nucleoside triphosphatases (ATPase, GTPase etc). HTS and follow up studies for phosphatase inhibitors. Quantitation of phosphate content in protein, lipids, and DNA....
...
Biology Products: