Navigation Links
Aquatic fish jump into picture of evolutionary land invasion
Date:10/7/2011

Research sometimes means looking for one thing and finding another. Such was the case when biology professor Alice Gibb and her research team at Northern Arizona University witnessed a small amphibious fish, the mangrove rivulus, jump with apparent skill and purpose out of a small net and back into the water.

This was no random flop, like you might see from a trout that's just been landed. The rivulus seemed to know what it was doing.

They hadn't expected to see that behavior, even from a fish known to spend time out of the water. So before long, what began as a study on the evolution of feeding behavior was shifted to a study of how fish behave when stranded on land. And considering what is implied by the truism "like a fish out of water," the results came as another surprise.

Some fully aquatic fishes, as the author's video clips show, also can jump effectively on land even without specialized anatomical attributes. This has significant implications for evolutionary biology, Gibb said, because the finding implies that "the invasion of the land by vertebrates may have occurred much more frequently than has been previously thought."

The study is summarized in a paper, "Like a Fish out of Water: Terrestrial Jumping by Fully Aquatic Fishes," that appears online in the JEZ A: Ecological Genetics and Physiology.

Gibb said the study "supports a big-picture theory in evolution," which is that the nervous system, in its control of bones and muscles, can allow a new behavior to appear without necessarily bringing about a physical change.

In the case of aquatic fish, Gibb said, "This shows that you don't have to have legs or rigid pectoral fins to move around on land. So if you go back and look at the fossil record to try to say which fish could move around on land, you'd have a hard time knowing for sure."

The original feeding study began with guppies, then moved to a relative, the mangrove riv
'/>"/>

Contact: Eric Dieterle
Eric.Dieterle@nau.edu
928-225-5042
Northern Arizona University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. A living species of aquatic beetle found in 20-million-year-old sediments
2. Location matters: For invasive aquatic species, its better to start upstream
3. TUM scientists document aquatic species decline at dams and weirs
4. Study shows climate change makes some chemicals more toxic to aquatic life
5. Baylor study finds common fire retardant harmful to aquatic life
6. Aquatic food web tied to land
7. Many urban streams harmful to aquatic life following winter pavement deicing
8. University of Maryland co-sponsors International Conference on the Effects of Noise on Aquatic Life
9. Healthy watersheds can sustain water supplies, aquatic ecosystems in a changing climate
10. New study documents use of hormone progesterone in simple microscopic aquatic animals
11. Aquatic life declines at early stages of urban development
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Aquatic fish jump into picture of evolutionary land invasion
(Date:8/18/2015)... , Aug. 18, 2015  Navitas today ... contributor to the Submission Content Management webinar ... a non-profit forum. Dedicated to the Implementation of ... neutral platform for industry, vendors, health authorities, ... and work towards a standard method of ...
(Date:8/12/2015)... , Aug. 12, 2015   MedNet Solutions ... the entire spectrum of clinical research, is proud to ... the company,s comprehensive SaaS-based eClinical technology platform, has led ... the first two quarters of 2015.   Q2 2015 ... largest quarters measured by contract value sold in the ...
(Date:8/12/2015)... , Aug. 12, 2015  Synaptics Inc. (NASDAQ: ... interface solutions, today announced that four of its ... solution, have officially been named FIDO Certified™ by ... of the certification, Synaptics, Natural ID™ fingerprint solutions ... Authentication Framework (UAF) standard and are interoperable among ...
Breaking Biology News(10 mins):Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3MedNet Solutions Experiences Explosive Corporate Growth 2Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 2Synaptics Announces FIDO Certification of Natural ID Fingerprint Solutions 3
... lower blood pressure (BP), and the diets can also be ... body weight, physical activity and alcohol intake play a role ... shown to be effective for preventing and managing hypertension. ... from 1900 to 2013 in which participants ate a vegetarian ...
... capture on video. Now researchers at Princeton University have achieved ... to break into and infect a cell. The technique they ... drugs via nanoparticles which are about the same size ... infection from occurring. The video reveals a virus-like particle ...
... or a busy airport where cold viruses and other germs ... as bees and butterflies can pick up fungal, bacterial or ... or as debilitating as influenza. But "almost nothing ... flowers," postdoctoral researcher Scott McArt and Professor Lynn Adler at ...
Cached Biology News:Now in 3-D: Video of virus-sized particle trying to enter cell 2Now in 3-D: Video of virus-sized particle trying to enter cell 3As hubs for bees and pollinators, flowers may be crucial in disease transmission 2
(Date:8/27/2015)... MA (PRWEB) , ... August 27, 2015 , ... Inc. ... United States, ranking iLab Solutions as number 1,361 in growth for the three years ... of the top 0.1% fastest-growing privately held organizations in the country. , “We ...
(Date:8/26/2015)... Aug. 26, 2015 /PRNewswire/ - iCo Therapeutics ("iCo" or ... financial results for the quarter ended June 30, ... Canadian dollars and presented under International Financial Reporting ... with respect to our Oral Amp B program, ... manufacturer," said Andrew Rae , President & ...
(Date:8/26/2015)... , Aug. 26, 2015 Intrexon Corporation ... announced today the closing of its previously announced public ... by the underwriters of their option to purchase an ... offering price of $41.00 per share.  The exercise of ... of common stock sold by Intrexon to 5,609,756 shares ...
(Date:8/26/2015)... Bruno, CA. (PRWEB) , ... August 26, 2015 , ... ... major conferences to develop new business relationships with local sponsors in southern California. The ... to facilitate their drug development processes and regulatory pathways., , ...
Breaking Biology Technology:iLab Solutions Named to 2015 Inc. 5000 List 2iLab Solutions Named to 2015 Inc. 5000 List 3iCo Therapeutics Announces Second Quarter 2015 Financial Results 2iCo Therapeutics Announces Second Quarter 2015 Financial Results 3Intrexon Announces Closing of $230 Million Public Offering of Common Stock including Full Exercise of Underwriters' Option to Purchase Additional Shares 2Intrexon Announces Closing of $230 Million Public Offering of Common Stock including Full Exercise of Underwriters' Option to Purchase Additional Shares 3Intrexon Announces Closing of $230 Million Public Offering of Common Stock including Full Exercise of Underwriters' Option to Purchase Additional Shares 4PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 3
... CLARA, Calif., Sept. 8 Cell Biosciences, Inc. and Alpha ... have entered into a definitive agreement providing for the acquisition ... or approximately $17.9 million in cash. This acquisition would significantly ... infrastructure and a broad protein analysis product portfolio. , ...
... NEW YORK, Sept. 8 /PRNewswire-Asia-FirstCall/ -- ... Company" or "AOBO"), a pharmaceutical,company dedicated to improving health ... of prescription and over the counter ("OTC"),products, today announced ... -- Morgan Stanley Healthcare Corporate Day, to ...
... Sept. 8, Palatin Technologies, Inc. (NYSE Amex: PTN ... ended June 30, 2009. For the year ended June 30, ... year ended June 30, 2008. Palatin,s net loss for the ... basic and diluted share, compared to a net loss of $14.4 ...
Cached Biology Technology:Cell Biosciences Signs Agreement to Acquire Alpha Innotech 2Cell Biosciences Signs Agreement to Acquire Alpha Innotech 3Cell Biosciences Signs Agreement to Acquire Alpha Innotech 4Cell Biosciences Signs Agreement to Acquire Alpha Innotech 5American Oriental Bioengineering Announces September Investor Conferences Participation 2Palatin Technologies, Inc. Reports Fourth Quarter and Fiscal Year End 2009 Results; Teleconference and Webcast to be held on September 8, 2009 2Palatin Technologies, Inc. Reports Fourth Quarter and Fiscal Year End 2009 Results; Teleconference and Webcast to be held on September 8, 2009 3Palatin Technologies, Inc. Reports Fourth Quarter and Fiscal Year End 2009 Results; Teleconference and Webcast to be held on September 8, 2009 4Palatin Technologies, Inc. Reports Fourth Quarter and Fiscal Year End 2009 Results; Teleconference and Webcast to be held on September 8, 2009 5Palatin Technologies, Inc. Reports Fourth Quarter and Fiscal Year End 2009 Results; Teleconference and Webcast to be held on September 8, 2009 6Palatin Technologies, Inc. Reports Fourth Quarter and Fiscal Year End 2009 Results; Teleconference and Webcast to be held on September 8, 2009 7
IHC Polymer Detection Kit (Rabbit DAB)150 slides...
...
Bovine Serum...
Healthy animals 10-32 weeks of age, mixed gender and breed; collected on wet ice following USDA guidelines, using Alsevers solution at 1:2 dilution...
Biology Products: