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:
TAG: Electric fish conduct electric duets aquatic courtship

(Date:8/20/2014)... WORCESTER, MA Using population-based screening outcomes of approximately ... states, including four researchers at the University of Massachusetts ... combined immunodeficiency (SCID) can be successfully implemented across public ... programs published in the Aug. 20 issue of the ... JAMA ) showed the rate of SCID in newborns ...
(Date:8/20/2014)... are athletes who have suffered concussions ready to return ... found that high school athletes who head back on ... a significant regression in their abilities to simultaneously walk ... seen in changes in their balance and/or altered walking ... of the 12 had returned to activity in less ...
(Date:8/20/2014)... plastic bags could one day be made out of ... are now reporting. The novel process they developed and ... its agricultural and plastic waste problems, appear in the ... S. Bayer and colleagues at the Italian Institute of ... In 2012, its production reached 288 million tons worldwide, ...
Breaking Biology News(10 mins):Newborn screening expansion offers early diagnosis and treatment to infants with SCID 2Newborn screening expansion offers early diagnosis and treatment to infants with SCID 3Recovery reversal seen in Oregon study of returning concussed athletes 2Recovery reversal seen in Oregon study of returning concussed athletes 3
... be processed unconsciously when the area of the brain ... down, according to research at Rice University in Houston. ... in the Proceedings of the National Academy of Sciences' ... than one pathway along which visual information can be ...
... have identified some of the key factors that prevent ... (MS), complications of premature birth, and other diseases and ... nervous system fails to repair itself and suggest ways ... be reversed. The research is published in the August ...
... an alien if you encountered it on the street tomorrow? ... rather was created in a laboratory right here on Earth ... Peter Ward has the beginnings of an answer. In a ... expanded "tree of life," or biological classification system, to account ...
Cached Biology News:Out of sight, out of mind? Not necessarily 2OHSU researchers discover potential mechanism to repair brain damage linked to Multiple Sclerosis 2OHSU researchers discover potential mechanism to repair brain damage linked to Multiple Sclerosis 3OHSU researchers discover potential mechanism to repair brain damage linked to Multiple Sclerosis 4New book expands biological classifications to account for 'alien' life 2New book expands biological classifications to account for 'alien' life 3
(Date:8/20/2014)... Aug. 20, 2014 /PRNewswire-iReach/ -- A case study ... between the school,s bioengineering department and the Intel® ... Intel® Software Academic Program, UCSD,s research focuses on ... human body.  Photo - ... the work of Dr. Todd P. Coleman ...
(Date:8/20/2014)... GraphDB™ 6.0 from ... to the enterprise replication cluster, faster loading speeds, ... and Elasticsearch. This release happens to coincide with ... – GraphDB™ was formerly known as OWLIM. ... mature enterprise resilient RDF triplestore will also benefit ...
(Date:8/19/2014)... -- Research and Markets  has announced the addition of the ... report to their offering. This report analyzes ... Thousands by the following Product Segments: Media, Sera, and Reagents. ... Canada , Japan , ... Latin America . Annual estimates and forecasts are provided for ...
(Date:8/19/2014)... 2014 Research and Markets  has announced the ... Global Strategic Business Report" report to their offering. ... Oxide Fuel Cells (SOFCs) in US$ Thousands. The report provides ... , Europe , Asia-Pacific ... provided for the period 2012 through 2020. Market data and ...
Breaking Biology Technology:Intel and University of San Diego Bioengineering Department Release Case Study on Health Sciences Research 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 3Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 4Global Cell and Tissue Culture Supplies - Strategic Business Report 2014 2Global Solid Oxide Fuel Cells (SOFCs) - Strategic Business Report 2014 2
... Microfluidic Systems (MFSI),along with its manufacturing ... invited to attend the U.S. House of,Representatives ... and Responding to Bioterrorism. MFSI will be ... The purpose,of the fair is to educate ...
... Memory,Pharmaceuticals Corp. (Nasdaq: MEMY ) today ... included an explanatory,paragraph in their opinion on the ... Report on Form 10-K for the year ended,December ... continue as a going,concern. The Company discusses this ...
... today,announced it has secured $20 million in venture ... includes Silicon Valley Bank,and Comerica Bank. Aerovance drew ... The remaining $10 million is available upon the ... interest and enthusiasm in Aerovance,and our clinical programs," ...
Cached Biology Technology:Memory Pharmaceuticals Receives Audit Opinion Containing Going Concern Qualification 2
Mouse polyclonal antibody raised against a partial recombinant LASS3. NCBI Entrez Gene ID = 204219...
... Bio-Beads SM-2 adsorbents are macroporous polystyrene ... a high surface area for adsorbing organics ... aqueous solutions. The beads are useful for ... active agents; for example, the removal of ...
MAb to Catenin beta, N-terminal (exon 2) Catenin, beta, N-terminal (exon 2)...
... Phosphate Phosphatase 2 (LPP2) ... aqueous solution Solution ... containing 0.08% sodium azide. ... the human LPP2 protein. ...
Biology Products: