Navigation Links
Electric fish conduct electric duets in aquatic courtship

Cornell researchers have discovered that in the battle of the sexes, African electric fish couples not only use specific electrical signals to court but also engage in a sort of dueling "electric duet."

The study is the first to compare electrical and behavioral displays in breeding and nonbreeding Brienomyrus brachyistius, a type of mormyrid electric fish, which emit weak electric fields from a batterylike organ in their tails to sense their surroundings and communicate their species, sex and social status with other fish. It is also the first study to successfully sort signals in electric fish based on sex.

The research, which is the cover story in the July 1 issue of the Journal of Experimental Biology, is authored by Carl D. Hopkins, Cornell professor of neurobiology and behavior, and Ryan Wong '05, who conducted the study as an undergraduate for his senior honors thesis and is now a Ph.D. student at the University of Texas in Austin.

"Our study provides strong evidence that the 'rasp' [a certain electric signal] is a male advertisement call during courtship in this species," said Wong, noting that the males also serenade females with lower frequency "creaks."

The researchers developed custom software that offers new techniques for separating and documenting electrical pulses based on sex. They video recorded four pair of mating mormyrids (a feat in itself, since the species rarely breeds successfully in captivity) and identified nine common motor displays and 11 specific pulse sequences common to courtship and mating.

"Knowing the electrical and motor patterns during courtship allows for further exploration of such topics as mate choice and neural basis of pattern generation in these fish," explained Hopkins, noting that the next step in the research will be to decode the fish transmissions and unravel their meaning.
'"/>

Source:Cornell University News Service


Page: 1

Related biology news :

1. Researchers Discover That Microbes Can Produce Miniature Electrical Wires
2. What can change in the brain? Electrical synapses, research shows
3. Electric fish in Africa could be example of evolution in action
4. Electric jolt triggers release of biomolecules, nanoparticles
5. Marine conservation organizations team up to conduct Indonesia coral reefs assessment
6. Zooming in on the protein-conducting channel
7. Superconducting magnet attracts molecular research
8. Innovative smallpox vaccine research study to be conducted at Case Medical Center
9. Liposome finding implies electrical effect on cell development
10. Its electric: Cows show promise as powerplants
11. Pollution-eating bacteria produce electricity
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/15/2016)... , April 15, 2016 ... "Global Gait Biometrics Market 2016-2020,"  report to their ... ) , ,The global gait biometrics market ... 13.98% during the period 2016-2020. Gait ... which can be used to compute factors that ...
(Date:3/31/2016)... -- Genomics firm Nabsys has completed a financial  restructuring under ... M.D., who returned to the company in October 2015. ... including Chief Technology Officer, John Oliver , Ph.D., ... Vice President of Software and Informatics, Michael Kaiser ... Bready served as CEO of Nabsys from 2005-2014 and ...
(Date:3/22/2016)... , PROVO and ... -- Newborn Screening Ontario (NSO), which operates the highest ... for molecular testing, and Tute Genomics and UNIConnect, leaders ... technology respectively, today announced the launch of a project ... sequencing (NGS) testing panel. NSO has ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... (PRWEB) , ... June 27, 2016 , ... Parallel ... clinical trials, announced today the Clinical Reach Virtual Patient Encounter CONSULT module ... circle with the physician and clinical trial team. , Using the CONSULT module, patients ...
(Date:6/27/2016)... BOSTON , June 27, 2016   Ginkgo ... biology to industrial engineering, was today awarded as ... a selection of the world,s most innovative companies. ... at scale for the real world in the ... organism engineers work directly with customers including Fortune ...
(Date:6/24/2016)... NC (PRWEB) , ... June 24, 2016 , ... Researchers ... the most commonly-identified miRNAs in people with peritoneal or pleural mesothelioma. Their findings are ... to read it now. , Diagnostic biomarkers are signposts in the blood, lung ...
(Date:6/23/2016)... - FACIT has announced the creation of a ... Propellon Therapeutics Inc. ("Propellon" or "the Company"), to ... of first-in-class WDR5 inhibitors for the treatment of ... an exciting class of therapies, possessing the potential ... patients. Substantial advances have been achieved with the ...
Breaking Biology Technology: