Navigation Links
New electric fish genus and species discovered in Brazil's Rio Negro
Date:4/22/2014

AMHERST, Mass. Scientists at the University of Massachusetts Amherst and the Instituto Nacional de Pesquisas da Amaznia (INPA), Brazil, this week report that they have discovered a new genus and species of electric knifefish in several tributaries of the Negro River in the Amazonia State of Brazil.

Professor Cristina Cox Fernandes at UMass Amherst, with Adlia Nogueira and Jos Antnio Alves-Gomes of INPA, describe the new bluntnose knifefish in the current issue of the journal Proceedings of the Natural Sciences of Philadelphia.

Their paper offers details about the new genus and species' anatomy, range, relationship to other fish, salient features of its skeleton, coloration, electric organs and patterns of electric organ discharge (EOD). True to their name, these fish produce electric discharges in distinct pulses that can be detected by some other fish.

Cox-Fernandes says the discovery of this species is leading to a new interpretation of classifications and interrelationships among closely related groups. She adds that as the diversity of electric fishes becomes more thoroughly documented, researchers will be able to explore possible causes of this group's adaptive radiation over evolutionary time.

Last year, with colleagues including ichthyologist John Lundberg at the Academy of Science in Philadelphia and others at Cornell University and INPA, the UMass Amherst fish biologist co-authored a description of three other electric fishes. The authors provided details about the most abundant species of apteronotid, so-called "ghost knife fishes," another family of electric fish very common in the Amazon River and its large tributaries.

In the early 1990s, Cox-Fernandes recalls, when she began her studies of the communities and diversity of electric fishes, fewer than 100 species were then scientifically described. But with the current journal article and studies by herself and others, the number has roughly doubled today. Electric fishes are of little commercial importance, but in her opinion fishes of the Neotropics, especially in the Amazon, are still "under studied," and more taxonomic studies such as the one are needed.

She adds, "As environmental changes affect rivers worldwide and in the Amazon region, freshwater fauna are under many different pressures. Fish populations are dwindling due to the pollution, climate change, the construction of hydroelectric plants and other factors that result in habitat loss and modification. As such the need to document the current fish fauna has become all the more pressing."


'/>"/>
Contact: Janet Lathrop
jlathrop@admin.umass.edu
413-545-0444
University of Massachusetts at Amherst
Source:Eurekalert  

Related biology news :

1. Name of new weakly electric fish species reflects hope for peace in Central Africa
2. Smart grid for electric vehicle fleet
3. Solar-induced hybrid fuel cell produces electricity directly from biomass
4. Study: Electric drive vehicles have little impact on US pollutant emissions
5. Synthetic natural gas from excess electricity
6. Pioneering path to electrical conductivity in tinker toy materials to appear in Science
7. KAIST developed the biotemplated design of piezoelectric energy harvesting device
8. How living cells solved a needle in a haystack problem to produce electrical signals
9. Pressure cooking to improve electric car batteries
10. How does electrical stimulation modulate electrophysiological environment after SCI?
11. Journal of Control, Automation and Electrical Systems now published by Springer
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New electric fish genus and species discovered in Brazil's Rio Negro
(Date:3/31/2016)... Florida , March 31, 2016 ... ) ("LegacyXChange" or the "Company") LegacyXChange ... potential users of its soon to be launched online ... ( https://www.youtube.com/channel/UCyTLBzmZogV1y2D6bDkBX5g ) will also provide potential ... use of DNA technology to an industry that is ...
(Date:3/29/2016)... Florida , March 29, 2016 ... the "Company") LegacyXChange "LEGX" and SelectaDNA/CSI Protect are pleased ... in ink used in a variety of writing instruments, ... Buyers of originally created collectibles from athletes on LegacyXChange ... forensic analysis of the DNA. Bill ...
(Date:3/22/2016)... March 22, 2016 ... Sensors Market for Consumer Industry by Type (Image, ... Application (Communication & IT, Entertainment, Home Appliances, ... Forecast to 2022", published by MarketsandMarkets, the ... to reach USD 26.76 Billion by 2022, ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... , ... May 25, 2016 , ... Scientists at the ... options being tried for mesothelioma may be hampering the research that could lead to ... Click here to read it now. , The team evaluated 98 ...
(Date:5/25/2016)... , ... May 25, 2016 , ... ... Food and Drug Administration (FDA) has granted the company’s orphan drug designation request ... second orphan drug designation granted by the FDA. , Spinocerebellar ataxia is ...
(Date:5/24/2016)... ... ... Last week, Callan Capital, an integrated wealth management firm specializing in asset ... Diego Life Science event at the Estancia La Jolla Resort and Spa. , Over ... Dr. Rich Heyman, former CEO of Aragon and Seragon, and Faheem Hasnain, former CEO ...
(Date:5/23/2016)... ... May 23, 2016 , ... PrecisionAg® ... Farming in 2017 and Beyond. The paper outlines the key trends that are ... industry. , “We’ve witnessed a lot of highs and lows as the precision ...
Breaking Biology Technology: