Navigation Links
Coastal animals have their own tidal timer -- separate from the 24-hour body clock
Date:9/26/2013

University of Leicester researchers have revealed that coastal animals have their own biological tidal timer, which is separate from their 24-hour body clock.

Experts from the University's Department of Genetics have published a paper in Current Biology which reveals the discovery of an independent clock driving coastal animals' tidal rhythms.

The paper, Dissociation of Circadian and Circatidal Timekeeping in the Marine Crustacean Eurydice pulchra, follows nearly ten years of research by Leicester geneticists, along with colleagues at the Universities of Bangor, Aberystwyth and Cambridge.

The researchers observed the behaviour of Eurydice pulchra, the speckled sea louse which lives along the sandy shores around the UK coast.

Eurydice have a regular 12.4 hour swimming cycle matching the incoming tides which sees them actively swimming around to find food as the tide comes in, and burying themselves in the sand as the tide goes out.

Eurydice also have a 24 hour 'circadian' rhythm in pigmented cells called melanophores, which grow during the day (acting as sunscreen) and become smaller at night when they are not required.

It had been thought for many years that these patterns of tidal behaviour in coastal organisms were driven by the 24-hour circadian clock, the ubiquitous and genetically encoded 'body clock' which controls the rhythmic behaviour and physiology of almost every terrestrial higher organism, including humans.

But the new paper shows that tidal behaviour is not governed by the circadian clock but is instead controlled by a dedicated 12.4-hour "circatidal pacemaker".

The researchers caught Eurydice from the coast near Bangor every season and monitored their behaviour and clock molecules in laboratories at Bangor and Leicester.

The team were able to "turn off" Eurydice's circadian clock by genetically kno
'/>"/>

Contact: Charalambos Kyriacou
cpk@le.ac.uk
01-162-523-430
University of Leicester
Source:Eurekalert

Page: 1 2

Related biology news :

1. Oceanographer Sylvia Earle kicks off Northeasterns Sustaining Coastal Cities Conference
2. Study finds maize in diets of people in coastal Peru dates to 5,000 years ago
3. Brown University scientists to discuss resilience of coastal communities at AAAS
4. Sustaining Coastal Cities Conference at Northeastern University
5. Preserve the services of mangroves -- Earths invaluable coastal forests, experts urge
6. Destroyed coastal habitats produce significant greenhouse gas
7. Clemson, Coastal Carolina universities to set hundreds of sensors in Savannah River
8. PSU study finds caffeinated coastal waters
9. Increasing levels of carbon dioxide in Arctic coastal seas
10. Personality interactions between animals may dictate outcomes in the wild
11. Relating animals to humans could help conservation projects
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/25/2014)... that there are 133 active fires in the North Slave ... in the past 24 hours. Fire danger is moderate to ... , The Birch Lake Complex of fires are in an ... within 30 km north of Fort Providence. Four crews ... Moraine Point this week. Mop-up continues many areas of complex,s ...
(Date:8/25/2014)... The Happy Camp Complex of fires began as a lightning ... consumed 22,670 acres and is 20% contained. There ... present. It consists of many small fires and a ... have been contained and only account for about 100 acres. ... the morning and early afternoon on August 24, keeping fire ...
(Date:8/25/2014)... August 25, 2014 Nearly 1 in 6 adults ... time, the disorder can cause serious complications. Auriculotherapy, ... points on the outer ear, may help in ... between 2007-2013 that evaluated the effectiveness of auriculotherapy ... discussed in a Review article in The ...
Breaking Biology News(10 mins):Happy Camper and July Fire Complexes in California 2
... ANN ARBOR, Mich. The risk of esophageal cancer ... is not as high as many may think, according ... GERD is considered a relative risk for developing esophageal ... Joel Rubenstein, M.D., M.Sc., an investigator with the Department ...
... -- When their razor-sharp mandibles wear out, leaf-cutter ants ... sisters take over cutting, say researchers from two Oregon ... regular publication in the journal Behavioral Ecology and ... of providing for its displaced workers. "This ...
... can dive for anything up to 15 minutes. However, Bob ... blue whales may be able to dive for longer, because ... blood and muscles, so why don,t they? ,The theory was ... lot of energy, says Shadwick. Explaining that the whales feed ...
Cached Biology News:Esophageal cancer risk lower than expected for patients with GERD 2When their tools get dull, leaf-cutters switch jobs 2When their tools get dull, leaf-cutters switch jobs 3Blue whale-sized mouthfuls make foraging super efficient 2
(Date:8/26/2014)... , Aug. 26, 2014  ViveBio, LLC ... sample collection, stabilization and transportation, announced today that ... Procurement Services, LLC (LPS) of Knoxville, ... products in the United States ... class of ambient temperature dried biological specimen transport ...
(Date:8/26/2014)... Francisco, CA (PRWEB) August 26, 2014 ... reach USD 8,020.1 million by 2020, according to a ... for personalized medicine and theranostics, and the subsequent introduction ... key factors driving market growth over the next six ... and chronic diseases such as cancer, coupled with disease ...
(Date:8/26/2014)... Aug. 26, 2014 Trovagene, Inc. (NASDAQ: ... Dx Summit; Moving Assays to the Clinic ... Monitoring of Cell Free Tumor DNA in Urine." ... of its Precision Cancer Monitoring (PCM) platform and ... for the detection of tumor DNA mutations from ...
(Date:8/26/2014)... NEW YORK , Aug. 26, 2014  That,s ... life science markets, today announced the formation of a ... strategic content development. The expanded team will combine current ... messaging areas at That,s Nice. ... Strategic Content to lead the team. Tiene was previously ...
Breaking Biology Technology:ViveBio and Laboratory Procurement Services Sign Agreement for Distribution of the ViveST Line of Products 2World Molecular Diagnostics Market Is Expected To Grow To $8,020.1 Million From 2014 To 2020: Grand View Research, Inc 2World Molecular Diagnostics Market Is Expected To Grow To $8,020.1 Million From 2014 To 2020: Grand View Research, Inc 3World Molecular Diagnostics Market Is Expected To Grow To $8,020.1 Million From 2014 To 2020: Grand View Research, Inc 4World Molecular Diagnostics Market Is Expected To Grow To $8,020.1 Million From 2014 To 2020: Grand View Research, Inc 5World Molecular Diagnostics Market Is Expected To Grow To $8,020.1 Million From 2014 To 2020: Grand View Research, Inc 6Highly Sensitive and Quantitative Analytical Performance is Translational for Clinical Utility of Cell-Free Tumor DNA Diagnostics 2Highly Sensitive and Quantitative Analytical Performance is Translational for Clinical Utility of Cell-Free Tumor DNA Diagnostics 3Highly Sensitive and Quantitative Analytical Performance is Translational for Clinical Utility of Cell-Free Tumor DNA Diagnostics 4That's Nice Announces Expanded Offering For Strategic Content And Public Relations 2That's Nice Announces Expanded Offering For Strategic Content And Public Relations 3
... VENTURA, Calif., Dec. 12 VivoMetrics Inc., a ... the,appointment of Howard R. Baker to the position ... Paul Kennedy, who will remain with,the company in ... Baker joins VivoMetrics with over 28 years in ...
... Oral Iclaprim, "Rolling" NDA for Intravenous Iclaprim in cSSSI; Electronic ... First Modules ... Arpida Ltd,(SWX: ARPN) announced today the enrolment and dosing of ... iclaprim in the treatment,of hospital-acquired pneumonia (HAP) / ventilator-associated pneumonia,(VAP) ...
... for the First Time on 50 mg/Day Dose for PRISTIQ ... Treatment of ... a division of Wyeth (NYSE: WYE ), announces that ... serotonin-norepinephrine reuptake inhibitor (SNRI), showed,that adult patients who received a ...
Cached Biology Technology:VivoMetrics(R) Appoints Howard R. Baker as New President and Chief Executive Officer 2First Patients Enrolled in Phase II Trial With Intravenous Iclaprim in HAP/VAP/HCAP 2First Patients Enrolled in Phase II Trial With Intravenous Iclaprim in HAP/VAP/HCAP 3First Patients Enrolled in Phase II Trial With Intravenous Iclaprim in HAP/VAP/HCAP 4First Patients Enrolled in Phase II Trial With Intravenous Iclaprim in HAP/VAP/HCAP 5New Phase 3 Data Showed PRISTIQ Significantly Reduced Symptoms of Major Depressive Disorder Versus Placebo 2New Phase 3 Data Showed PRISTIQ Significantly Reduced Symptoms of Major Depressive Disorder Versus Placebo 3New Phase 3 Data Showed PRISTIQ Significantly Reduced Symptoms of Major Depressive Disorder Versus Placebo 4New Phase 3 Data Showed PRISTIQ Significantly Reduced Symptoms of Major Depressive Disorder Versus Placebo 5New Phase 3 Data Showed PRISTIQ Significantly Reduced Symptoms of Major Depressive Disorder Versus Placebo 6
... The Dodeca silver stain kits are ... devices including Bio-Rad Dodeca stainers. This ... quantities of proteins in polyacrylamide gels ... kit includes sensitizer concentrate, silver reagent ...
The AVR9-8 stream-select valve is a 9-port, 8-position valve for use with the BioLogic DuoFlow system. This valve is used for high-pressure stream selection....
... stain for staining RNA (bluish-purple), DNA (blue), proteins (red) ... ≥ 90 % Cation traces: Ca ≤ 10 mg/kg ... ≤ 5 mg/kg Cu ≤ 5 mg/kg Fe ≤ ... mg/kg Mn ≤ 5 mg/kg Na ≤ 50 mg/kg ...
... Biometras Tpersonal thermocycler provides maximum performance ... generation of Peltier elements, high heating and ... to short run times. With a maximum ... Tpersonal provides half the capacity of much ...
Biology Products: