Deep sea isolation: Hypersaline 'islands' harbor unique life
July 8, 2013 — Deep in the ocean exist super salty anoxic basins that form 'islands' allowing evolution to vary between communities of ciliated plankton. These unique communities are presented in BioMed Central's open access journal BMC Microbiology, and provide an opportunity to observe multiple results of evolution from the same stock and different solutions to environmental difficulties.
Share This:
About five and a half million years ago the Mediterranean sea dried up. This resulted in salty sediment, known as Messinian evaporites, in basins which were covered by sea water as the area reflooded. Salts from these basins are slowly leaching out but, since this water is denser than the surrounding sea, they are unmixable and it remains a briny column.
The ciliate plankton which live in these brines all began from the same stock, but over time have had the potential to evolve differently. Researchers from University of Kaiserslautern in collaboration with Woods Hole Oceanographic Institution, USA and CNR- Institute for Coastal Marine Environment, Italy, investigated how isolated these communities are, and whether there has been mixing between them and the surrounding ciliates in the sea.
The researchers found that there was some mixing of ciliate communities at the interfaces immediately above four different brines, and that these communities were very similar to each other. However the communities living at the heart of the brines were very different from each other even though the physical properties of each island were the same.
Dr Thorsten Stoeck who led this project said, "The isolation of these very similar habitats means that we can study alternative courses of evolution. Each of our four communities had taken a subtly different route in adapting to anoxia and hypersalinity, resulting in four very different communities. Other ancient isolated habits which also occur in the Red Sea and Gulf of Mexico may also contain 'hot spots' of as-of-yet unstudied and potentially highly divergent ecosystems."
Welcome to SUV System Ltd!
SUV System Ltd is ISO 90012008 Certified electronics distributor with 10 years of experiences.
We have built up long term business relationship with about many companies which are stockers and authorized agents. we have a steady and reliable supply to meet customer's demands to the greatest extent .Confidently, we are able to lower your cost and support your business with our years of professional service.
SUV System Ltd is Electronic Components Distributor Supplies,Find Quality Electronic Components Supplies Products IC(Integrated Circuits),Connectors,Capacitor,Resistors,Diodes,Transistors,LED at Suvsystem.com. Sourcing Other Energy, Environment, Excess Inventory Products from Manufacturers and Suppliers at Suvsystem.com
Electronic Components distributor:http://www.suvsystem.com
Connectors Distributor:http://www.suvsystem.com/l/Connectors-1.html
IC Distributor:http://www.suvsystem.com/l/IC(Integrated-Circuits)-1.html
LED Distributor:http://www.suvsystem.com/l/LED-1.html
Capacitor Distributor:http://www.suvsystem.com/l/Capacitor-1.html
Transistor Distributor:http://www.suvsystem.com/l/Transistors-1.html
Resistor Distributor:http://www.suvsystem.com/l/Resistors-1.html
Diode Distributor:http://www.suvsystem.com/l/Diodes-1.html
SUV System Ltd insists on the managing faith ofsincereness,speciality,foresight, win-win,so we build up stable-relationship customers located all over the world, including the States, Europe, Argentina, UAE, Malaysia, Australia,and India etc
we are focus on the following fields,and hope we can help you.
Bipolar MOTOROLA BB Chip Fuses Freescale Semiconductor NEC TDK Renesas parts Cypress IC Military IC INFLNEON Microchip IC Other Parts IDT IC Multi-units Switching ROHM Kingbrigt LED SANYO Fleld Effect INTERSIL LINEAR LITTELFUSE AVX Xilinx Texas Instruments(TI) chip Filter saws DIODES TOSHIBA ON Digital ST Thick Film ALTERA PANASONIC LED part Resistor Arrays Dialight LED FAIRCHILD diodes Resistor Networks
http://www.suvsystem.com/a/3543.aspx
