Navigation Links
Elephant seal tracking reveals hidden lives of deep-diving animals
Date:5/15/2012

ry zone is important for a wide range of marine predators, including elephant seals, sharks, tuna, and albatrosses. A surface feature associated with the boundary zone, caused by blooms of phytoplankton, is detectable in satellite images, but it moves seasonally as much as 1,000 kilometers to the south. The deep-diving elephant seals do not follow this surface feature, but continue to target the deep boundary zone between the two gyres.

Smaller numbers of female elephant seals feed in coastal regions, pursuing bottom-dwelling prey along the continental shelf, or in other areas outside of the boundary zone such as around seamounts. Among these is a large female that feeds near Vancouver Island and holds the record for deepest recorded dive by an elephant seal. The data analyzed in the PLoS ONE paper include one dive to 1,747 meters (5,765 feet, well over a mile), and the same seal dove even deeper on a more recent foraging trip, reaching 1,754 meters (5,788 feet), Robinson said.

Female northern elephant seals make two foraging trips every year. After the breeding season in February and March, they head out to sea for two months before returning to the rookery to molt. Then they leave on a long post-molting migration that often lasts eight months, from June to January. The amount of food a female is able to find on these foraging trips directly affects her breeding success and, if she gives birth, her pup's growth rate and chances of survival.

"If foraging is not good, the pups are smaller at weaning because the females produce less milk," Robinson said.

In addition to tracking the foraging migrations, the researchers monitor the health of the seals and track birth rates over time. Tags are attached harmlessly onto the animals' fur and recovered when they return to the rookery. Before and after each migration, the researchers get weights and blood samples from the tagged seals, which always return to the same rookery. The tags used
'/>"/>

Contact: Tim Stephens
stephens@ucsc.edu
831-459-2495
University of California - Santa Cruz
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. The absence of elephants and rhinoceroses reduces biodiversity in tropical forests
2. Notre Dame researchers are providing insights into elephant behavior and conservation issues
3. Ocean warming causes elephant seals to dive deeper
4. Elephant seal travels 18,000 miles
5. More than 50 percent decline in elephants in eastern Congo due to human conflict: UBC research
6. West Runton Elephant helps unlock the past
7. Lowly termite, not the lion or elephant, may be the star of Africas savanna
8. Study looks at gorillas, elephants and logging in Congo
9. Are high speed elephants running or walking?
10. Elephant-size loopholes sustain Thai ivory trade
11. DNA barcoding of mosquito species deployed in bid to end elephantiasis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... Wis. , Jan. 15, 2015  BellBrook Labs, ... drug discovery, announced the launch of a TR-FRET ... the company,s Transcreener UDP Assay, a high throughput ... The new assay will allow for sensitive detection ...
(Date:1/22/2015)... NXTD and NXTDW) a biometric authentication company focused on ... Wocket™ smart wallet at CES 2015 in Las Vegas ... the "11 Hot Products at CES" in a review published in Wired.com, ... Newseveryday.com and "The top 10 gadgets from CES 2015" by Danny ...
(Date:1/22/2015)... NEW YORK , Jan. 21, 2015  Analyst Report Issued ... Credit Card Brands report showed that planet-wide, transactions at merchants ... 2011, while the total number of credit, debit, and prepaid ... the U.S. were victims of fraudulent card usage in 2012, ...
Breaking Biology News(10 mins):BellBrook Labs Launches a High Throughput Screening Assay for Glycosyltransferases with TR-FRET Readout 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2
... you observe in another but have never actually experienced yourself? ... and answer this question. The research, published by Cell Press ... , provides insight into brain mechanisms involved in empathy. ... subjects feel their own emotions or observe the same emotions ...
... CAREFREE, A.Z. - With new evidence emerging on the ... that contribute to disparities in risk and outcome for ... Research will host the Science of Cancer Health Disparities ... 2009. "The goals of this conference are ...
... a Wide Range of Platforms SUNNYVALE, Calif., Jan. 27 ... Inc. , a leading supplier of innovative computer products ... today announced the development of new security technology to ... the Opal Security Subsystem Class (Opal SSC). Opal SSC ...
Cached Biology News:I feel your pain: Neural mechanisms of empathy 2Fujitsu Develops HDD Security Technology Based on Opal SSC Standards 2Fujitsu Develops HDD Security Technology Based on Opal SSC Standards 3
(Date:1/22/2015)... Jan. 22, 2015  Transwestern | RBJ today announces the firm ... space for Shire a leading biopharmaceutical company, at Two Ledgemont ... RBJ,s Robert Richards , president, and Brian Cohen ... the entire five-floor building at 95 Hayden Ave. ...
(Date:1/22/2015)... BOSTON , Jan. 22, 2015  Transwestern | RBJ today ... feet of office space for Shire a leading biopharmaceutical company, ... . Transwestern | RBJ,s Robert Richards , president, and ... the lease for the entire five-floor building at 95 Hayden ...
(Date:1/22/2015)... The laboratory information management systems market ... number of technological advancements due to factors such as ... to integrate healthcare systems, and increasing government support for ... integration. Key players in the market focus on technological ...
(Date:1/22/2015)... / Rootstown, OH (PRWEB) January 22, 2015 ... platform, announced today that it has received AOAC-PTM Certifications for ... O1O3, O111, O121, and O145; collectively referred to as STEC ... O157, at 1 colony forming unit (cfu) per 325 g ...
Breaking Biology Technology:Transwestern | RBJ Advises Shire in 202,000 SF Lease, Creating Boston's Largest Suburban Biotech Campus 2Transwestern?RBJ Advises Shire in 202,000 SF Lease, Creating Boston's Largest Suburban Biotech Campus 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 4Crystal Diagnostics Awarded AOAC-PTM Accreditation for the Rapid Detection of “Big 6” E.coli Food Pathogens 2
... ... bar coding, scan and software tracking of each part and batch, including all leak ... ... -- Automotive, medical device, appliance and other manufacturers seeking cost-effective ways to collect and ...
... BOZEN, Sud-Tirol, Italy , April 26, 2010 ... the International Society of,Oncology Pharmacy Practitioners (ISOPP), B|Braun Melsungen, ... host ISOPP delegates at its bi-annual congress,to witness live ... the only robot in the world proven to compound ...
... ... and Increase Yields , ... Oceanside, CA (PRWEB) April 26, 2010 -- Kinovate Life Sciences, Inc., a California ... oligonucleotide synthesis, will be launching its next generation high loading polymeric solid support product ...
Cached Biology Technology:InterTech Development Company Component Tracker System Announced 2Health Robotics to Showcase CytoCare at ISOPP (May 2010) and Charles University' General Faculty Hospital of Prague 2Health Robotics to Showcase CytoCare at ISOPP (May 2010) and Charles University' General Faculty Hospital of Prague 3Kinovate Life Sciences, Inc. and Nitto Denko Corporation Announce Launch of NittoPhaseHL – High Loaded Solid Support for Oligonucleotide Synthesis 2Kinovate Life Sciences, Inc. and Nitto Denko Corporation Announce Launch of NittoPhaseHL – High Loaded Solid Support for Oligonucleotide Synthesis 3Kinovate Life Sciences, Inc. and Nitto Denko Corporation Announce Launch of NittoPhaseHL – High Loaded Solid Support for Oligonucleotide Synthesis 4
... The loxP-cm-loxP cassette ... in prokaryotic cells. The prokaryotic ... chloramphenicol resistance is a slightly modified ... mediates higher transcription efficiency than the ...
Includes a choice of any 3 EasySep mouse selection kits and EasySep magnet...
... Complete kit for stabilizing 1.5mg of purified ... optimised for the stabilization of aqueous RNA ... methods such as guanidine, phenol/chloroform, silica, oligo ... StabMRT Kits contain all the necessary components ...
Human SEAP ORF, provided in a pORF plasmid. pORF is an expression plasmid selectable with Ampicillin....
Biology Products: