Navigation Links
LSU biologist James Caprio, Japanese colleagues identify unique way catfish locate prey
Date:6/5/2014

BATON ROUGE Animals incorporate a number of unique methods for detecting prey, but for the Japanese sea catfish, Plotosus japonicus, it is especially tricky given the dark murky waters where it resides.

John Caprio, George C. Kent Professor of Biological Sciences at LSU, and colleagues from Kagoshima University in Japan have identified that these fish are equipped with sensors that can locate prey by detecting slight changes in the water's pH level.

A paper, "Marine teleost locates live prey through pH sensing," detailing the work of Caprio and his research partners, will be published in the journal Science on Friday, June 6. This is the first report of any fish using pH to find live prey.

"What makes this so interesting is that the discovery was unexpected, quite serendipitous," Caprio said.

The study was an offshoot of work initiated in 1984 when Caprio, a specialist in aquatic vertebrate taste and smell systems, began a collaborative investigation at Kagoshima University examining the physiology of the taste system of the Japanese sea catfish. While performing electrical recordings from the fish barbells, or "whiskers," he noticed that every so often some new sensory nerve fibers would respond at a much larger amplitude than the others.

"Immediately I knew that there was something different about those nerves, but I was working on a different project funded by the National Science Foundation and had to put my curiosities on the back burner," Caprio said.

In 1986, Caprio's curiosities got the best of him, and he asked his friends in Japan to ship him some of the catfish so that he could examine what was triggering such huge responses in the fish.

"I suspected the response was due to a change in pH caused by some of the tested stimuli," he said. "It was obvious that there were sensory nerve fibers in these fish that were responding to transient lowering of the pH of the seawater
'/>"/>

Contact: Aaron Looney
alooney@lsu.edu
225-578-3871
Louisiana State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. University of Toronto biologists pave the way for improved epilepsy treatments
2. Neurobiologist Thomas Jessell to receive $500,000 Gruber Neuroscience Prize
3. JHU biologists identify new neural pathway in eyes that aids in vision
4. Why a bacterium got its curve -- and why biologists should know
5. IU biologists receive $6.2 million to advance research on bacterial evolution
6. Biologists discover a key regulator in the pacemakers of our brain and heart
7. Stanford biologists help solve fungal mysteries
8. Biologists develop nanosensors to visualize movements and distribution of plant hormone
9. Climate change a likely culprit in coqui frogs altered calls, say UCLA biologists
10. Neurobiologists find chronic stress in early life causes anxiety, aggression in adulthood
11. SU biologists use sound to identify breeding grounds of endangered whales
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/19/2014)... VIEW, Calif. , Dec. 18, 2014  23andMe, Inc., the ... study that pinpoints fine-scale differences in genetic ancestry of individuals ... Since immigrants first arrived more than four hundred years ... as a meeting place for peoples from different continents. This ...
(Date:12/17/2014)... SM announced today its completion of a Good ... current U.S. Food and Drug Administration (FDA) regulations. This ... smart phone application trials utilizing the highest principles for ... determined to improve global healthcare access, quality, and delivery ...
(Date:12/15/2014)... 2014 Research and Markets ( http://www.researchandmarkets.com/research/87pph8/global_facial ) ... Recognition Market 2015-2019" report to their offering. ... recognition is a technology used for the identification of ... of a person such as nose, jaw edges, mouth, ...
Breaking Biology News(10 mins):23andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3
... COLUMBIA, Mo. -- Resveratrol, a compound found commonly in ... have several beneficial effects on human health, including cardiovascular ... researcher has discovered that the compound can make prostate ... chances of a full recovery from all types of ...
... nonfood substances, such as earth -- and amylophagy, eating raw ... the U.S. Some 180 species of animals are also known ... A study appearing Oct. 17 in the online journal ... of pica in Madagascar. It is one of only a ...
... Society of Environmental Toxicology and Chemistry will present the SETAC/ICA ... Annual Meeting, November 11 at the Long Beach Convention and ... School of Marine & Atmospheric Science of the University of ... understanding of fate and effects of metals in the environment, ...
Cached Biology News:Compound in grapes, red wine could be key to fighting prostate cancer 2Study documents eating of soil, raw starch in Madagascar 2SETAC announces Chris Lee Award for metals research winner, Kevin Brix 2
(Date:1/22/2015)... zFlo Motion , a US leader in ... product from a new partner. STT-Systems has developed ... 15 years, with offerings in the optical-motion capture, 3D scanning, ... (inertial measurement unit), iSen, is opening eyes around the world. ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 Diagenode, ... such as the Bioruptor® and complete solutions for ... for chromatin immunoprecipitation, alleviating the need for manual ... controls needed for ChIP of histones or transcription ...
(Date:1/22/2015)... GenoSpace , a precision medicine software company that has developed ... of genomic, imaging and other biomedical data in research and ... , CEO of Aspera, an IBM Company, to its board ... "We are pleased to welcome Michelle ...
(Date:12/24/2014)... YORK , Dec. 24, 2014 PlasmaTech Biopharmaceuticals, Inc. ... critical areas, announced the closing of an underwritten public offering ... up to an aggregate 3,500,000 shares of common stock, at ... warrant.  The warrants have a per share exercise price of ...
Breaking Biology Technology:3D Motion Capture Just Got Easy 2Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2GenoSpace Expands Board with Appointment of Michelle Munson 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3
... ... ... -- DuPont has entered into agreements to acquire AgVenture, Kentland, Ind.; Hoegemeyer Hybrids, ... business’ PROaccess℠ strategy. Closings are scheduled to occur in the latter part of 2010. ...
... 2 Repligen Corporation (Nasdaq: RGEN ) announced today that it ... on Wednesday, June 9th, 2010 , before the market opens.  The Company ... a conference call and webcast on the same day at 10:00 a.m. ... the Company. , , , ...
... FT. MYERS, Fla., June 2 NeoGenomics, ... will present at the Sixth Annual Noble Financial Equity Conference ... 7, 2010 at the Seminole Hard Rock Hotel in ... Chief Scientific Officer, will give a presentation regarding NeoGenomics, market ...
Cached Biology Technology:DuPont Enhances its PROaccess℠ Business Strategy Through Acquisitions 2DuPont Enhances its PROaccess℠ Business Strategy Through Acquisitions 3DuPont Enhances its PROaccess℠ Business Strategy Through Acquisitions 4Repligen Announces Conference Call of Fourth Quarter and Fiscal Year 2010 Financial Results 2Repligen Announces Conference Call of Fourth Quarter and Fiscal Year 2010 Financial Results 3NeoGenomics to Present at Noble Financial's 6th Annual Equity Conference on Monday, June 7th 2NeoGenomics to Present at Noble Financial's 6th Annual Equity Conference on Monday, June 7th 3
Phospho-TAK1 (Thr184/187) (90C7) Rabbit mAb Shipping Temperature: Cold Storage Temperature: -20C...
Gamma delta T Lymphocytes Purified Anti-Porcine clone MAC320, Isotype Rat IgG 2a , kappa, 0.1 mg Consult technical datasheet for details....
... (Ser843) Immunogen: ... encompassing the human, mouse, and rat ... Number: NM_153831 ... by immunoblot. ...
Mouse monoclonal [DJR3] to DcR1 (Biotin) ( Abpromise for all tested applications). entrezGeneID: 8794 SwissProtID: O14798...
Biology Products: