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:
TAG: Electric fish conduct electric duets aquatic courtship

(Date:6/24/2015)... , June 22, 2015 ... announced the addition of the "Huawei Ascend ... report to their offering. Huawei,s ... to the opposite direction than Apple,s and Samsung,s ... fingerprint sensor developed by Fingerprint Cards, a main ...
(Date:6/23/2015)... June 22, 2015 ... addition of the "Body-Worn Temperature Sensors Market ... and Forecast 2014 - 2020" report to ... analysis of the global body-worn temperature sensors market. ... segmented on the basis of types, care setting, ...
(Date:6/18/2015)... YORK , June 18, 2015 This ... US$ Million by the following Product Segments, which includes ... Systems, Chemiluminescence Immunoassay Systems, Radio Immunoassay Systems, and Nephelometric ... the US, Canada , ... Asia-Pacific , Latin America ...
Breaking Biology News(10 mins):Huawei Ascend Mate 7 Fingerprint Sensor - Reverse Costing Analysis 2Body-Worn Temperature Sensors Market - Global Industry Analysis 2Global Immunoassay Systems Market 2Global Immunoassay Systems Market 3Global Immunoassay Systems Market 4Global Immunoassay Systems Market 5Global Immunoassay Systems Market 6Global Immunoassay Systems Market 7Global Immunoassay Systems Market 8Global Immunoassay Systems Market 9Global Immunoassay Systems Market 10Global Immunoassay Systems Market 11Global Immunoassay Systems Market 12Global Immunoassay Systems Market 13Global Immunoassay Systems Market 14Global Immunoassay Systems Market 15Global Immunoassay Systems Market 16Global Immunoassay Systems Market 17Global Immunoassay Systems Market 18Global Immunoassay Systems Market 19Global Immunoassay Systems Market 20Global Immunoassay Systems Market 21Global Immunoassay Systems Market 22Global Immunoassay Systems Market 23Global Immunoassay Systems Market 24Global Immunoassay Systems Market 25Global Immunoassay Systems Market 26Global Immunoassay Systems Market 27Global Immunoassay Systems Market 28Global Immunoassay Systems Market 29
(Date:7/2/2015)... -- Amici Procurement Migrates to the Cloud ... has chosen Microsoft Cloud Solution Provider iomart ...      (Logo: http://photos.prnewswire.com/prnh/20121126/579634) , ... the bio-tech sector with a unique procurement service, helping ... help them obtain best value. Its IT platform hosts ...
(Date:7/1/2015)... PARK, N.C. and PARIS ... research firm AgBiome, and Genective, key developer of ... accelerate the discovery of new generations of insect ... for insect control to counter the realities of ... with Genective, aligning AgBiome,s unique insect control technology ...
(Date:7/1/2015)... , July 1, 2015   Neuraltus Pharmaceuticals, ... development of groundbreaking drugs to treat neurodegenerative diseases ... that Robert G. Miller , M.D., Director of ... Health,s California Pacific Medical Center in San Francisco, has ... for $1.5 million to help fund a Phase ...
(Date:7/1/2015)... 1, 2015 InferMed , ... will ... evidence-based clinical s olutions suite   ... information products and services, announced today the acquisition of  InferMed ... (CDS) technology company. InferMed,s Arezzo technology supports clinicians ...
Breaking Biology Technology:Biotech Procurement Company Moves to Office 365 with iomart 2AgBiome and Genective collaborate to create novel insect-resistant crops 2Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 2Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 3Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 4Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 2Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 4
Cached News: