Navigation Links
Study examines how diving marine mammals manage decompression
Date:12/21/2011

of nitrogen bubbles more frequently than previously thought, and that the animals' response strategies might involve physiological trade-offs depending on situational variables. In other words, the animals likely manage their nitrogen load and probably have greater variation in their blood nitrogen levels than previously believed.

Because the animals spend so much time below the ocean's surface, understanding the behavior of diving marine mammals is quite challenging. The use of innovative technology is helping to advance the science. At WHOI, scientists have used a CT scanner to examine marine mammal cadavers at different pressures to better understand the behavior of gases in the lungs and "get some idea at what depth the anatomy is shut off from further pressure-kinetics issues," Moore said. For other studies, Moore and his colleagues were able to acquire a portable veterinary ultrasound unit to look at the presence or absence of gas in live, stranded dolphins.

There's still a lot to be learned, including whether live animals have circulating bubbles in their systems that they are managing. If they do, says Moore, noise impacts and other stressors that push the animal from a normal management situation to an abnormal situation become more of a concern. "When a human diver has some bubble issues, what will they do? They will either climb into a recompression chamber so that they can recompress and then come back more slowly, or they'll just grab another tank and go back down for a while and . . . and just let things sort themselves out. What does a dolphin do normally when it's surfaced? The next things to do is to dive, and the one place you can't do that is in shallow water or most particularly if you are beached."


'/>"/>

Contact: WHOI Media Relations
media@whoi.edu
508-289-3340
Woods Hole Oceanographic Institution
Source:Eurekalert

Page: 1 2

Related biology news :

1. UMDs START gets $3.6 million to study terrorisms human causes and consequences
2. Human skull study causes evolutionary headache
3. Study reveals turn signals for neuron growth
4. Hellbender salamander study seeks answers for global amphibian decline
5. Study reveals gender bias of prospective parents
6. Wayne State study finds soybean compounds enhances effects of cancer radiotherapy
7. Study of skates and sharks questions assumptions about essential genes
8. Close family ties keep microbial cheaters in check, study finds
9. Barracuda babies: Novel study sheds light on early life of prolific predator
10. New study shows promise for preventing preterm births
11. 3-year study identifies key interventions to reduce maternal, newborn and child deaths
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/28/2014)... Ariz. - Reactions among minerals and organic compounds in ... carbon cycle, they provide energy for the deep biosphere, ... However, very little is known about how minerals influence ... State University have demonstrated how a common mineral acts ... negating the need for toxic solvents or expensive reagents. ...
(Date:7/28/2014)... School of Medicine have pinpointed a mechanism in part of ... the blood, linking it to both type 1 and type ... issue of Proceedings of the National Academies of Sciences ... located in a part of the hypothalamus known as ... motion that control glucose levels in the blood," said lead ...
(Date:7/28/2014)... genome of Solanum pennellii , a wild relative ... international group of researchers including the labs headed by ... Davis Department of Plant Biology. The new genome information ... The work, published July 27 in the journal ... colleagues at Aachen University in Germany. The UC Davis ...
Breaking Biology News(10 mins):Mineral magic? Common mineral capable of making and breaking bonds 2Mineral magic? Common mineral capable of making and breaking bonds 3Glucose 'control switch' in the brain key to both types of diabetes 2
... children, on their exposure to molds or dampness in their ... has greater or smaller beneficial effect against asthma, according to ... that vitamin C might be beneficial in the treatment of ... controlled trials have been conflicting., Drs Mohammed Al-Biltagi from the ...
... One of the world,s strangest animals a unique fish ... no legs has a rich and complex social life, a ... blenny ( Alticus arnoldorum ) has been detailed for the first ... life first evolved to colonise the land., The Pacific leaping blenny ...
... to swine flu, virus outbreaks can be unpredictable and ... networking site Facebook, developed in a Tel Aviv University lab, ... infections spread among populations. Dr. Gal Almogy and ... Biology at TAU,s George S. Wise Faculty of Life Sciences ...
Cached Biology News:Landlubber fish leap for love when tide is right 2Watching viruses 'friend' a network 2Watching viruses 'friend' a network 3
(Date:7/29/2014)... Boston, MA (PRWEB) July 30, 2014 ... communication (UC) and collaboration company, is proud to ... and account management positions in their Boston, Charleston ... in response to the increased demand for hosted ... enhance operational efficiency and reduce cost. , SoundConnect ...
(Date:7/29/2014)... The advanced optical methods and applications for ... a revolution in the neurosciences were the inspiration behind ... SPIE, the international society for optics and photonics ... of the BRAIN Initiative in the United States, and ... vision for and provide examples of the impact that ...
(Date:7/29/2014)... Can a particle be separated from its properties? On ... published the results of the first Cheshire Cat experiment, ... Chapman University in Orange, CA, and Vienna University of ... without a grin," thought Alice in Wonderland, "but a ... I ever saw in my life!" Alice,s surprise stems ...
(Date:7/29/2014)... July 29, 2014  The Society for Clinical ... updated program for the 9 th annual ... in Amelia Island , Florida.  The focus ... remains unchanged, however, the topics and format will ... opportunity among all stakeholders with a continued focus ...
Breaking Biology Technology:SoundConnect Organization and Culture is Evolving 2SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 2SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 3SPIE Launches 'Neurophotonics' Journal with Special Section on BRAIN Initiative 4The quantum Cheshire cat: Scientists separate a particle from its properties 2The quantum Cheshire cat: Scientists separate a particle from its properties 3The quantum Cheshire cat: Scientists separate a particle from its properties 4TransCelerate, Lilly, Pfizer, and FDA Highlight Collaborative Program at the Site Solutions Summit 2TransCelerate, Lilly, Pfizer, and FDA Highlight Collaborative Program at the Site Solutions Summit 3
... 6 Advanced Life Sciences,Holdings, Inc. (Nasdaq: ... development and commercialization of novel drugs in the,therapeutic ... that it will host a conference call and ... Thursday, August 14, 2008 at 10:00,a.m. (EDT). Michael ...
... Nanochannel Chip and Reader for,Single-Molecule Mapping, Enabling Direct Visualization ... Strands of DNA in Context and at ... BioNanomatrix, Inc., a developer,of breakthrough nanoscale whole genome imaging ... announced,receipt of a grant from the National Human Genome ...
... YORK and HAIKOU CITY, China, Aug. 6 /Xinhua-PRNewswire-FirstCall/,-- ... Board: CPHI),which develops, manufactures, and markets generic and ... results,for the second quarter of 2008., ... revenues increased 31.6% to $11.28 million -- ...
Cached Biology Technology:Advanced Life Sciences To Host 2008 Second Quarter Financial Results Conference Call and Webcast 2Advanced Life Sciences To Host 2008 Second Quarter Financial Results Conference Call and Webcast 3BioNanomatrix Awarded New NIH Grant for Development of Nanoscale Platform for Single-Molecule DNA Mapping and Haplotype Applications 2BioNanomatrix Awarded New NIH Grant for Development of Nanoscale Platform for Single-Molecule DNA Mapping and Haplotype Applications 3China Pharma Holdings, Inc. Announces Second Quarter 2008 Financial Results 2China Pharma Holdings, Inc. Announces Second Quarter 2008 Financial Results 3China Pharma Holdings, Inc. Announces Second Quarter 2008 Financial Results 4China Pharma Holdings, Inc. Announces Second Quarter 2008 Financial Results 5China Pharma Holdings, Inc. Announces Second Quarter 2008 Financial Results 6China Pharma Holdings, Inc. Announces Second Quarter 2008 Financial Results 7China Pharma Holdings, Inc. Announces Second Quarter 2008 Financial Results 8China Pharma Holdings, Inc. Announces Second Quarter 2008 Financial Results 9China Pharma Holdings, Inc. Announces Second Quarter 2008 Financial Results 10
... lines in combination with the corresponding optimized ... are only functional in combination with the ... transfected with this kit. The corresponding efficiencies ... percent (Efficiency [%] / viability [%]). ...
... Human Pathogenic Viruses The National ... preserves well characterised, authenticated human ... facility, and NCPV is able ... nucleic acids derived from them, ...
B-FABP (FL-132)...
... (rEK) is a highly purified preparation of ... serine protease which recognizes the identical cleavage ... has similar enzymatic activity (1). Novagen&'s enzyme ... to yield the highest activity available, and ...
Biology Products: