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

; however, what I did not know was what function this response served."

Caprio tabled the investigation again, as other research activities took precedence, and resumed his analysis in 2005 with support from the National Institutes of Health and LSU. Caprio traveled to Japan six times between 2005 and 2013, staying at least a month each visit. During this time, he focused his attention on the fishes' nervous system, while colleagues conducted behavior experiments.

For the physiological experiments, the fish were outfitted with electrodes that allowed the recording of the fishes' responses to water of varying pH. It was during this time that they determined that the function of the sensitivity of the fishes' barbells to minor changes in water pH was due to the respiration of small sea worms, polychaetes, a primary prey of the sea catfish.

The sea worms live in tubes or burrows in the mud. As the worms breathe, they release tiny amounts of carbon dioxide and acid, producing a slight decrease in the pH of the seawater that the nocturnal sea catfish detects.

"These fish are like swimming pH meters. They are just as good as a commercial pH meter in the lab," Caprio said.

For the behavioral experiments, the researchers placed the fish in aquariums filled with seawater, along with the sea worms, which were placed into glass tubes within the coral substrate of the aquarium. The researchers used infrared photography to show that the nocturnally active fish spent significantly more time in the vicinity of the worms than in other locations in the aquarium. The researchers also confirmed that the catfish were attracted to a location in the aquarium where seawater of a slightly lower pH was being emitted from a small tube even when no worms were present. In addition, the fish became extremely active, searching for food and even bit repeatedly at the end of the tube.

The research indicates that the catfishes' sensitivi
'/>"/>

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 $6.2 million to advance research on bacterial evolution
6. Biologists discover a key regulator in the pacemakers of our brain and heart
7. Stanford biologists help solve fungal mysteries
8. Biologists develop nanosensors to visualize movements and distribution of plant hormone
9. Climate change a likely culprit in coqui frogs altered calls, say UCLA biologists
10. Neurobiologists find chronic stress in early life causes anxiety, aggression in adulthood
11. SU biologists use sound to identify breeding grounds of endangered whales
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/13/2015)... , Feb. 13, 2015 ACT Genomics ... that aims to transform cancer genomic information into ... the company has raised US$ 8 million in the ... in Taipei, Taiwan , ACT ... ACTOnco™. With the aim to implement next generation ...
(Date:2/11/2015)... 2015 According to ... Market by Product (Cards and Readers, Biometrics, Controllers, Management ... Industrial, Healthcare, Education) and By Geography - Global Forecast and Analysis ... Access Control Market is expected to reach ... CAGR of 10.6% between 2014 and 2020. ...
(Date:2/5/2015)... , 5. Februar 2015 Marken ... Logistikunternehmen und hat eine neue Marketingkampagne gestartet, ... (Clinical Logistics Organization – CLO) der Branche ... lautet First , mit Schwerpunkt auf ... http://photos.prnewswire.com/prnh/20150205/173753 Logo - ...
Breaking Biology News(10 mins):ACT Genomics Raises $8 Million in its First Private Funding Round 2Access Control Market Worth $10.4 Billion by 2020 2Access Control Market Worth $10.4 Billion by 2020 3Access Control Market Worth $10.4 Billion by 2020 4Marken startet Kampagne mit Patienten im Mittelpunkt 2Marken startet Kampagne mit Patienten im Mittelpunkt 3
... fractures due to osteoporosis are a major cause of disability ... are patients who have already suffered one fragility fracture; they ... compared to others who have not fractured. Nevertheless ... and treat these patients, leaving them exposed to debilitating and ...
... 2013 Reportlinker.com announces that a new ... catalogue: India Biometrics Market ... http://www.reportlinker.com/p01162444/India-Biometrics-Market-Forecast-and-Opportunities-2018.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Security_Systems The biometric security ... India . With the ...
... LLC are pleased to announce a new license ... the unique characteristics of CSIRO,s Reversible Addition-Fragmentation chain ... high-end polymer development capabilities for the biotech industry., ... Hayes said the agreement would allow the company ...
Cached Biology News:New review sets international standards for best practice in fracture liaison services 2India Biometrics Market Forecast and Opportunities, 2018 2India Biometrics Market Forecast and Opportunities, 2018 3India Biometrics Market Forecast and Opportunities, 2018 4India Biometrics Market Forecast and Opportunities, 2018 5India Biometrics Market Forecast and Opportunities, 2018 6
(Date:3/6/2015)... Transparency Market Research has published a new report ... Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - ... valued at US$ 116.3 Mn in 2013 and is anticipated ... CAGR of 5.1% from 2014 to 2020. In terms of ... tons in 2013. , Isoxaflutole is widely used in the ...
(Date:3/6/2015)... , March 6, 2015   BioLife Solutions ... developer, manufacturer and marketer of proprietary clinical grade ... and precision thermal shipping products for cells ... Company,s fourth quarter and full year 2014 financial results will ... the Company will host a conference call and live ...
(Date:3/5/2015)... , March 5, 2015  DuPont (NYSE: ... Transportation and Industrials Conference held today in ... Matthew L. Trerotola discussed strategy, progress and plans ... for DuPont.  Strengthening and growing the company,s leading position ... areas of strategic priority for DuPont. Discussing ...
(Date:3/5/2015)... , March 5, 2015   HX360 ... semi-finalists in the HX360 Innovation Challenge competition. ... will compete to be chosen as one of four ... of senior health system executives and venture capitalists during ... Innovation Challenge takes place at the 2015 HIMSS Annual ...
Breaking Biology Technology:Isoxaflutole Market is Expected to Reach US$ 163.0 Mn by 2020 : Transparency Market Research 2Isoxaflutole Market is Expected to Reach US$ 163.0 Mn by 2020 : Transparency Market Research 3BioLife Solutions to Report Fourth Quarter and Full Year 2014 Financial Results and Provide Business Update on March 12, 2015 2DuPont Leader Highlights Strategy, Progress and Plans to Accelerate Growth in Advanced Materials and Discusses Near-Term Outlook 2DuPont Leader Highlights Strategy, Progress and Plans to Accelerate Growth in Advanced Materials and Discusses Near-Term Outlook 3DuPont Leader Highlights Strategy, Progress and Plans to Accelerate Growth in Advanced Materials and Discusses Near-Term Outlook 4HX360 Announces Sixteen Innovation Challenge Semi-finalists Competing To Deliver Solutions That Improve The Patient Experience 2HX360 Announces Sixteen Innovation Challenge Semi-finalists Competing To Deliver Solutions That Improve The Patient Experience 3HX360 Announces Sixteen Innovation Challenge Semi-finalists Competing To Deliver Solutions That Improve The Patient Experience 4
... Ohio, June 25 Battelle is,strengthening its ... device, and government clients, and,Kevin Xie will ... of Biomarker,Services., Battelle offers a suite ... validation services to help our clients,better define ...
... with six million, votes revoked - and no ... TORONTO, June 25 /PRNewswire/ - The Concerned Shareholders of ... today and will seek a,declaration that the Biovail Corporation ... and will request that a proper meeting be convened. ...
... GanedenBC30, to power new raisin bran probiotic muffins. , ... ... Gourmet, one of the fastest growing manufacturers of gourmet frozen bakery ... with the high-survivability probiotic, GanedenBC30 (Bacillus coagulans GBI-30, 6086). ...
Cached Biology Technology:Battelle Selects Xie to Develop Biomarker Services 2Main Street Gourmet Launches New Probiotic Muffins 2Main Street Gourmet Launches New Probiotic Muffins 3
... up to 30 minutes of walkaway time. Automatic Calibration. Five minute cooldown from turn-on. ... ... ... ...
... pipets ,Angled acrylic pipet rack offers easy access ... pipet cans. Constructed of 6 mm (1/4 in.) thick ... 76 mm H x 289 mm D (3 x ... W x 406 mm H x 292 mm D ...
...
CoverWell imaging chamber gasket with adhesive, one chamber, 20 mm diameter, 1.0 mm deep *set of 40* Cell Biology Imaging Tools and Accessories Microscope Slide Accessories...
Biology Products: