HOME >> BIOLOGY >> NEWS
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.


'"/>

Contact: Press Relations Office
pressoffice@cornell.edu
607-255-6074
Cornell University News Service
20-Jun-2007


Page: 1

Related biology news :

1. Electric fish shed light on ways the brain directs movement
2. Electrical activity alters language used by nerve cells
3. Electric fish in Africa could be example of evolution in action
4. Electrical stimulation boosts stroke recovery
5. Electrical engineer works on personalizing medical treatment
6. Semiconductor membrane mimics biological behavior of ion channels
7. Interim analysis of anti-cancer vaccine, BiovaxID, to be conducted
8. Innovative smallpox vaccine research study to be conducted at Case Medical Center
9. Plastic with changeable conductivity developed by chemical engineer
10. The Parkinsons Institute to conduct Phase III Clinical Trial of creatine for Parkinsons disease
11. Parents genes, not parents arguing, may cause childrens conduct problems

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/5/2017)... , April 4, 2017 KEY FINDINGS ... anticipated to expand at a CAGR of 25.76% during ... diseases is the primary factor for the growth of ... report: https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The global ... product, technology, application, and geography. The stem cell market ...
(Date:3/30/2017)... HONG KONG , March 30, 2017 ... developed a system for three-dimensional (3D) fingerprint identification by adopting ground ... technology into a new realm of speed and accuracy for use ... applications at an affordable cost. ... ...
(Date:3/27/2017)... CENTRE, N.Y. , March 27, 2017 /PRNewswire-USNewswire/ ... Healthcare Information and Management Systems Society (HIMSS) Analytics ... Outpatient EMR Adoption Model sm . In addition, ... 12% of U.S. hospitals using an electronic medical ... CHS for its high level of EMR usage ...
Breaking Biology News(10 mins):
(Date:6/22/2017)... Frederick, MD (PRWEB) , ... June 22, 2017 ... ... software solutions provider, announced the release of Limfinity® version 6.5, a content-packed update ... Limfinity® framework continue to gain a larger and more diverse base of customers ...
(Date:6/20/2017)... NEWTOWN SQUARE, Pa. , June 20, 2017 /PRNewswire/ ... technology, is pleased to announce the issuance of a ... treating gout or hyperuricemia by the U.S. Patent and ... Biotech Inc., a winner of the Buzz of Bio ... , is akin to developing non-drug approaches to ...
(Date:6/19/2017)... ... 2017 , ... EDETEK, Inc., a clinical technology company focused ... two new additions of its award-winning cloud-based platform CONFORM™: Information Hub and Clinical ... Annual Meeting in Chicago, IL, June 19-22, 2017. , “Modern clinical trials use ...
(Date:6/16/2017)... Rocky Hill, CT (PRWEB) , ... June 16, 2017 , ... ... of last night’s Entrepreneur Innovation Awards (EIA), held at The LOFT at Chelsea Piers ... their innovative project ideas to a panel of judges for an opportunity to secure ...
Breaking Biology Technology:
Cached News: