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

125-kilometer-long transect in the Galapagos. During three field seasons, the team bolted nearly 1,500 plates at depths of 6 and 15 meters to track the colonization of barnacle larvae and the growth of populations in areas with weak, intermediate and strong vertical upwelling.

The team also documented for the first time the strength of currents at the sampling locations, which included a dozen islands or outcrops located in the center of the archipelago. In areas with the most vertical upwelling, the researchers found, the current moved at a brisk 0.6 meters (2 feet) per second; the weakest vertical currents were measured at 5 centimeters (0.2 feet) per second.

Scientists who study coastal marine communities had assumed that prey species such as barnacles and mussels would be largely absent in vertical upwelling areas, since the larvae, which float freely in the water as they seek a surface to attach to, would more likely be swept away in the coast-to-offshore currents. Studies of the near-surface layer of the water in rocky tidal zones confirmed that thinking. But the field work by Witman and his group, in deeper water than previous studies, told a different tale: Few barnacles were found on the plates in the weak upwelling zones, while plates at the strong upwelling sites were teeming with the crustaceans. Flourishing barnacle communities were found at both the 6-meter and 15-meter stations, the researchers reported.

The scientists think the free-floating larvae thrive in the vertical-current zones because they are constantly being bounced against the rocky walls and eventually find a tranquil spot in micro crevices in the rock to latch on to. "It's a contact game," Witman said.

The team suggests the observations could hold true for other rocky tidal ecosystems. "We're one of the few people doing underwater experimental ecology in the Galapagos," said Brandt, who is Ecuadorean. "This project is one of the first at
'/>"/>

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:5/5/2015)... , May 5, 2015, NXT-ID, Inc. (NASDAQ: ... company focused on the growing mobile commerce market, reminds investors ... Chief Technology Officer, is presenting  at CARTES SECURE CONNEXIONS AMERICA ... 5-7, 2015. The three-day conference is organized ... is speaking in is themed Global Fraud: Where is ...
(Date:4/27/2015)... FORT LAUDERDALE, Fla. , Apr. 27, 2015 /PRNewswire/ ... provider of access control and security systems is pleased ... joined the company as a consultant and member of ... Bedore is widely known as a thought leader ... Socrates Distance Learning Technology Group, and has published studies ...
(Date:4/20/2015)... 2015 The announcement comes as ... Records Management (GRM), Ireland,s foremost records ... Having built up an impressive track record of clients within ... within the records management sector in Dubai ... GCC staffbase and employ a further eight staff members at ...
Breaking Biology News(10 mins):NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 2NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 3Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 2Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 3Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 4Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 2Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 3
... 20, 2012   Cell Therapeutics, Inc. ("CTI") (NASDAQ and ... European Medicines Agency,s ("EMA") Committee for Medicinal Products for ... on CTI,s Marketing Authorization Application ("MAA") for Pixuvri in ... with the CHMP on the Summary of Product Characteristics ...
... of scientists has found one of the rarest and least ... was believed to be extinct or on the verge of ... of Primatology , confirms the continued existence of this endangered ... it was previously not known to exist. Miller,s Grizzled ...
... flow channels offer a chemically unique environment, which at first ... in the crust of the earth, through which water flows, ... And yet it is precisely this extreme environment, where ... root of all life: The multiplication of biomolecules (reproduction) and ...
Cached Biology News:Cell Therapeutics, Inc. Expects That the European Medicines Agency's (EMA) Committee for Medicinal Products for Human Use (CHMP) May Issue an Opinion on the Marketing Authorization Application ("MAA") on Pixuvri™ in Mid-February 2Cell Therapeutics, Inc. Expects That the European Medicines Agency's (EMA) Committee for Medicinal Products for Human Use (CHMP) May Issue an Opinion on the Marketing Authorization Application ("MAA") on Pixuvri™ in Mid-February 3'Extinct' monkey rediscovered in Borneo by new expedition 2Avalanche of reactions at the origin of life 2Avalanche of reactions at the origin of life 3
(Date:5/6/2015)... -- Bone Biologics, Corp., ("Bone Biologics") announced today the completion ... Capital") of Los Angeles, CA. The ... regenerative medicine using the patented recombinant human protein known as ... Michael Schuler , CEO of Bone ... round of funding which will allow the company to continue ...
(Date:5/6/2015)... San Jose, California (PRWEB) May 06, 2015 ... – Quantum Dots, a type of nanomaterial with ... the fastest-growing product in the global nanophotonics materials ... properties of quantum dots due to quantum confinement ... use in a wide range of scientific, technological, ...
(Date:5/6/2015)... -- Oxis Biotech, Inc. (OXIS), a wholly owned subsidiary of ... Cassian Yee , M.D., Professor, Department of Melanoma ... of Texas MD Anderson Cancer Center joined its scientific ... Immunology, Division of Cancer Medicine, and Director, Solid Tumor ... University of Texas MD Anderson Cancer Center.  ...
(Date:5/6/2015)... , May 6, 2015 Dr Jaspreet ... Massey University, will deliver a speech at the 2015 Asian ... the Shanghai New Expo Center.  ... introduce to attendees the topic: ,Potato Starch: A Potential ... Smart Foods., Co-editor of a 528 page ...
Breaking Biology Technology:Bone Biologics Corp Completes Financing With Hankey Capital, LLC 2Bone Biologics Corp Completes Financing With Hankey Capital, LLC 3Expanding Applications & Full-Scale Commercialization to Drive the Global Quantum Dots Market, According to a New Report by Global Industry Analysts, Inc. 2Expanding Applications & Full-Scale Commercialization to Drive the Global Quantum Dots Market, According to a New Report by Global Industry Analysts, Inc. 3Oxis Biotech Appoints Cassian Yee, M.D. To Its Scientific Advisory Board 2Oxis Biotech Appoints Cassian Yee, M.D. To Its Scientific Advisory Board 3Potato Starch: A Potential Source for the Creation of Next Generation Bulk-ingredients and Smart Foods 2
... asking for bids on the construction of downtown wireless Internet access ... to charge user fees and would take on the cost of ... for the right to operate. The project would not be paid ... costs are still not finalized. , ,Now, though, the city is ...
... Wis. While the Madison chapter of the ... for new social and technological developments, Scott Converse showed them ... they want to see where the next big thing is ... UW-Madison School of Business and founder of the Web integration ...
... is full of excitement and anticipation of what may await them ... screen the final onslaught of companies vying for a place at ... February to unwrap the selected 70 or so companies that will ... way that just wont wait until the conference gems we ...
Cached Biology Technology:Madison asks for wireless bids; airport, downtown would be first 2Business-school IT director points to reasons for wireless trend 2An early Christmas gift 2
... is the only PCR system that ensures ... time. It provides accuracy, consistency, and dependability ... the property of the DNA templates. This ... a unique blend of thermostable enzymes that ...
Special grade: for molecular biology Density: 1.000 g/mL (20 C)...
... meet the needs of the ... medium supports fast cell growth ... while maintaining high cell viability ... using the Baculovirus Expression Vector ...
... number is a new ... easily match Cornings product ... availability yet, please order ... number (Z36,327-8) or contact ...
Biology Products: