Navigation Links
Ecologists home in on how sperm whales find their prey

Ecologists have at last got a view of sperm whales' behaviour during their long, deep dives, thanks to the use of recently developed electronic "dtags". According to new research published in the British Ecological Society's Journal of Animal Ecology, sperm whales ?like bats ?use echolocation consistently to track down their prey at depth.

Working in the Atlantic, the Gulf of Mexico and the Ligurian Sea, scientists from Woods Hole Oceanographic Institution and the University of St Andrews attached acoustic recording tags to the dorsal surface of sperm whales with suction cups. The whales were then tracked acoustically with a towed hydrophone array.

The researchers used the tags to record the sounds that sperm whales produce while foraging. As sperm whales descended from the surface, they emitted a regular series of "clicks". When the whales reach the bottom of their dive, these clicks are emitted more often, eventually merging together to form "buzzes" of sound. This pattern reflects the whales homing in on cephalopods such as squid, with the buzzes reflecting the animals' final approach when detailed information on the squid's position and movement are required, the researchers believe.

Dr Stephanie Watwood and colleagues found that sperm whales produced buzzes on every deep dive they made, in all three locations, suggesting that they are highly successful at locating prey in the dark ocean depths.

The sperm whale is the world's largest deep-diving toothed whale, feeding mainly on squid, but until now little has been known about the timing of prey detection and capture during dives.

"Due to the difficulty of observing sperm whales during their long, deep dives, little has been known about their subsurface behaviour, giving rise to an array of speculations on how sperm whales find prey, including luring, touch, passive listening, echolocation and vision. Recording vocalisations of diving sperm whales presents a non-invasive o
'"/>

Source:Blackwell Publishing Ltd.


Page: 1 2

Related biology news :

1. Environmental chemical cocktail may sabotage sperm
2. Human embryonic stem cells have the potential to develop into eggs and sperm in the laboratory
3. UK sperm donor crisis
4. Protein translation in sperm
5. How sperm crack the whip
6. Chromosomal abnormalities in sperm higher after vasectomy reversal
7. Study links high levels of nitric oxide to infertility and sperm DNA damage
8. Even when faint, ovary scent draws sperm cells
9. Single molecular mark seen as pivotal for genome compaction in spores and sperm
10. Early-stage sperm cells created from human bone marrow
11. Tracking sperm whales and jumbo squid
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Ecologists home how sperm whales find their prey

(Date:8/12/2015)... MINNETONKA, Minn. , Aug. 12, 2015   ... that supports the entire spectrum of clinical research, is ... ™ , the company,s comprehensive SaaS-based eClinical technology platform, ... growth during the first two quarters of 2015.   ... and second largest quarters measured by contract value sold ...
(Date:8/11/2015)... Today, ZUK announced its Android smartphone Z1, featuring FPC,s touch ... 2015 that relate to sales of FPC1155 for this smartphone model ... for 2015. Jörgen Lantto, CEO of FPC, comments: " ... manufacturer in China and we are proud ... for Z1 , its first ...
(Date:8/6/2015)... BOSTON and TELTOW, Germany ... the 2015 Siggraph Conference, SensoMotoric Instruments (SMI) ... augmented reality , based on Epson,s Moverio ... eye tracking platform. With this new solution, unprecedented quality ... multi-modal, hands-free interaction with context-sensitive displays. For the first ...
Breaking Biology News(10 mins):MedNet Solutions Experiences Explosive Corporate Growth 2FPC's Touch Fingerprint Sensor FPC1155 in ZUK's Smartphone Z1 2SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 2SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 3
... Listed below are the selected highlights for the November 2012 ... . The November issue is available online at ... November 2012, Copyright 2012. Please feel free to ... ISSUE HIGHLIGHTS , An ex vivo model ...
... metro region from Super Storm Sandy has not yet ... PhD, PE, says when the hammers start swinging, it,s ... The material, best known as AAC, has been heralded ... It,s a lightweight, easily-crafted manufactured stone, strong enough to ...
... researchers have discovered the cellular pathway that causes lung-damaging ... pathway,s activity also decreases inflammation. The finding offers ... disease, which is a major cause of illness and ... that target lung inflammation would be a big step ...
Cached Biology News:Genetics Society of America's GENETICS journal highlights for November 2012 2Genetics Society of America's GENETICS journal highlights for November 2012 3Genetics Society of America's GENETICS journal highlights for November 2012 4New drug target found for cystic fibrosis lung disease 2
(Date:8/27/2015)... /PRNewswire/ - Portage Biotech Inc. ("Portage") (OTC Market: ... Holding Company Limited (Biohaven), announced today that dosing ... BHV-0223, a glutamate modulating agent. Biohaven filed an ... obtained clearance from the U.S. Food and Drug ... holds 54% equity interest in Biohaven, a private ...
(Date:8/27/2015)... Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced its results ... complete second quarter financial statements and MD&A have been filed on ... per shareThree-months ended , Six -months endedJune 30 , June 30 ... 2014 Revenue , 4,709 , 2,459 ... 1,656 , 56 , 3,188 , ...
(Date:8/27/2015)... ... 2015 , ... Inc. Magazine released its annual list of the 5,000 fastest-growing ... growth for the three years through 2014. Being named to the Inc. 5000 list ... the country. , “We are thrilled to make the Inc. 5000 list for ...
(Date:8/27/2015)... (PRWEB) , ... August 27, 2015 , ... ... Personalized Medicine, recently presented new data on the relationship of genetics and hypertension ... World Congress on Heart Disease in Vancouver, British Columbia, Canada. The event, which ...
Breaking Biology Technology:Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 2Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 3Portage's Biohaven doses first human subject in Phase 1 trial with lead drug candidate BHV-0223 4BIOREM Reports $718,000 Net Earnings for the Second Quarter 2BIOREM Reports $718,000 Net Earnings for the Second Quarter 3iLab Solutions Named to 2015 Inc. 5000 List 2iLab Solutions Named to 2015 Inc. 5000 List 3Proove Biosciences Presents Ground-Breaking Data on Genetics and Heart Disease at 20th World Congress on Heart Disease 2Proove Biosciences Presents Ground-Breaking Data on Genetics and Heart Disease at 20th World Congress on Heart Disease 3
... Jayne Garno, LSU associate professor of chemistry in the ... government,s highest honor for scientists and engineers in the ... Early Career Award for Scientists and Engineers, or PECASE. ... a prestigious award. LSU is a rich environment for ...
... DIEGO, Nov. 10, 2010 Anadys Pharmaceuticals, Inc. (Nasdaq: ... the Lazard 7th Annual Healthcare Conference on Wednesday, November 17, ... is being held at the St. Regis New York.  Steve ... provide an overview of Anadys and its clinical development programs. ...
... Dendreon Corporation (Nasdaq: DNDN ) today ... the post-approval supplement to the PROVENGE® (sipuleucel-T) Biologics ... manufacturing facility. Dendreon is requesting licensure for an ... U.S. Food and Drug Administration (FDA) review for ...
Cached Biology Technology:LSU’s Jayne Garno receives early career award from President 2Anadys Pharmaceuticals to Present at the Lazard Healthcare Conference 2Dendreon Submits Post-Approval Supplement to the PROVENGE Biologics License Application for New Jersey Manufacturing Facility 2
... Anti-PSD-95, clone K28/86.2, PDZ Domain ... Immunogen : GST fusion to residues ... 0.01M Tris pH 7.4, 0.075M NaCl ... routinely evaluated by immunoblot on rat ...
... • Small design specifically for western blots ... are specifically designed for staining western blots. ... 25 mm) of the disposable tray requires ... significant cost savings to the user. Pour ...
... software has been designed and created in ... biologist friendly genotyping analysis tool. We incorporated ... groups into the software. Their main requirements ... and low acquisition cost. GeneMarker can ...
...
Biology Products: