Navigation Links
Tracking sperm whales and jumbo squid

only way they can catch them, but no one has ever seen a sperm whale feeding in the wild, so nobody really knows how they capture their food."

Stressed squid

The study also revealed that the squid often made rapid nighttime dives from the surface to deeper waters preferred by whales. "One reason squid may be going down there at night is because water near the surface is really warm—up to 82 F—and they may be getting stressed," Gilly explained. "The squid is using energy all of the time, because it has to swim to breathe. So when it gets into really warm water, I think it gets out pretty quickly. These deep dives, therefore, may have some kind of recovery function. We think the stress may be temperature-related, but another factor could be oxygen. It’s possible they could be negatively affected by long exposure to the higher oxygen levels found near the surface."

A stressed-out squid may be an easy target for hungry sperm whales waiting below, according to Gilly. "We propose that jumbo squid are more susceptible to predation while they are recovering at depth immediately after a deep nighttime dive," he explained.

In previous studies, Gilly found that jumbo squid are well adapted to the low-oxygen environment in deeper waters, where they spend most of their time. However, he added, at depths of 800 feet or more, where it’s very cold and oxygen levels are extremely low, the squid’s reaction time, visual acuity and swimming speed may be significantly impaired because of an inadequate supply of oxygen—a condition known as hypoxia.

"Squid need a constant supply of oxygen to support their metabolism," Davis added. "Sperm whales, on the other hand, take the oxygen down with them bound to the hemoglobin in their blood and the myoglobin in their muscles, so they don’t have to worry about hypoxia at depth."

By spending most of their time in cold, deep waters, he noted, sperm whales can take advantage of a vuln
'"/>

Source:Stanford University


Page: 1 2 3 4 5 6

Related biology news :

1. New Technique for Tracking Gene Regulators
2. Tracking the memory trace
3. Environmental chemical cocktail may sabotage sperm
4. Human embryonic stem cells have the potential to develop into eggs and sperm in the laboratory
5. UK sperm donor crisis
6. Protein translation in sperm
7. How sperm crack the whip
8. Chromosomal abnormalities in sperm higher after vasectomy reversal
9. Ecologists home in on how sperm whales find their prey
10. Study links high levels of nitric oxide to infertility and sperm DNA damage
11. Even when faint, ovary scent draws sperm cells
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Tracking sperm whales and jumbo squid

(Date:4/24/2014)... published in the Scientific Reports journal. , CSIC ... joint centre of CSIC and Pompeu Fabra University-UPF), explains: "When ... we saw that it did not match with the DNA ... the complete genome and to make a functional interpretation in ... Louis XVI". , The functional genome analysis was based ...
(Date:4/24/2014)... Researchers at Ludwig-Maximilians-Universitaet (LMU) in Munich have identified ... system to discriminate between viral and endogenous RNAs ... they take control of cellular metabolism and hijack ... This process is dependent on viral RNA molecules ... of RNA viruses) and/or newly synthesized in the ...
(Date:4/24/2014)... State University and the University of North Carolina at ... could help identify arterial plaque that is at high ... stroke. , At issue is the plaque that builds ... plaque are deemed "vulnerable," meaning that they are more ... heart attack or stroke. , "Existing state-of-the-art technologies are ...
Breaking Biology News(10 mins):The blood preserved in the pumpkin did not belong to Louis XVI 2Viral infections: Identifying the tell-tale patterns 2Viral infections: Identifying the tell-tale patterns 3New ultrasound device may add in detecting risk for heart attack, stroke 2
... researchers have shown natural radioactivity within DNA can alter ... The research, recently published in Biochimica et ... at natural radioactivity within human DNA on the atomic-scale. ... as well as in every living organism across the ...
... 2013 In the past decade, a single strain of ... become the main cause of bacterial infections in women and ... a study published today in the American Society for Microbiology,s ... resistant to antibiotics, the strain H30-Rx gained an unprecedented ability ...
... climate and biosphere modelling suggests that the length of time ... known as ,residence time, - is the key "uncertainty" in ... all life - will respond to higher CO2 levels and ... time in vegetation as the negative impacts of climate change ...
Cached Biology News:Radioactivity muddles the alphabet of DNA 2Epidemic of Escherichia coli infections traced to 1 strain of bacteria 2Epidemic of Escherichia coli infections traced to 1 strain of bacteria 34 degree rise will end vegetation 'carbon sink' 24 degree rise will end vegetation 'carbon sink' 3
(Date:1/14/2014)...  RXi Pharmaceuticals Corporation (OTCQX: RXII), a biotechnology company ... addressing major unmet medical needs using RNA-targeted technologies, ... Allowance from the United States Patent and Trademark ... for the treatment of fibrosis. The patent covers ...
(Date:1/14/2014)... , Jan. 14, 2014   Kinaxis ®, provider of ... ) and sales and operations planning ( S&OP ) service, ... Biomanufacturing Summit , which will be held at the Hilton ... conference, join Kinaxis customer Elisabeth Kaszas , Director of ...
(Date:1/14/2014)... January 14, 2014 Kerr Corporation, a leading ... and additional how-to information about dual arch impressions on its ... Dual Arch Impressions,” the blog entry serves up a list ... houses a step-by-step demonstration by Dr. David Little as he ...
(Date:1/14/2014)... Independent publisher Bitingduck Press, with offices in Altadena ... ideas for 2014 in production and sales of interactive ... high-quality, low-cost, DRM-free ebooks and to use the sales ... first major development will be bookstore sales in local ...
Breaking Biology Technology:RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 2RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 3Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2Bitingduck Press Looks Forward to 2014 With Multimedia E-books 2
... 21, 2011 MO BIO Laboratories, Inc., ... purification, announces the launch of the RTS DNase™ Kit, ... enzyme. (Photo: http://photos.prnewswire.com/prnh/20110921/LA65994 ) ... from RNA preparations while protecting valuable RNA samples from ...
... Silence Therapeutics plc (AIM: SLN) ("Silence", the "Group" or ... company, today announces the appointment of Tony Sedgwick PhD, ... Sedgwick will be based in Silence,s London office and ... Tony Sedgwick is an experienced biotechnology and pharmaceutical ...
... SANTA CRUZ, Calif., Sept. 20, 2011 SomaGenics, Inc., ... data on the efficacy of RNA interference (RNAi) therapeutics ... sshRNA platform. SomaGenics, along with its ... in a poster entitled "Synthetic Short shRNAs are Potent ...
Cached Biology Technology:MO BIO Laboratories, Inc. Launches the RTS DNase™ Kit 2Appointment of Chief Business Officer 2Appointment of Chief Business Officer 3SomaGenics' sshRNA Technology Demonstrates Efficacy of RNAi Against Hepatitis C Virus 2SomaGenics' sshRNA Technology Demonstrates Efficacy of RNAi Against Hepatitis C Virus 3
Mouse monoclonal [MN-8C4] to zona radiata ( Abpromise for all tested applications). Antigen: Purified eggshell proteins (zona radiata proteins and small amounts of zona pellucida proteins) from ...
Rabbit polyclonal to KIAA1276 ( Abpromise for all tested applications). entrezGeneID: 27146 SwissProtID: Q9ULE4...
Phospho-Chk1 (Ser296) Antibody Shipping Temperature: HOT Storage Temperature: -20C...
Mouse monoclonal [CRC64] to Integrin alpha 2b + beta 3 ( Abpromise for all tested applications). Antigen: Human platelets Entrez Gene ID: 23295 Swiss Protein ID: P05106...
Biology Products: