Navigation Links
Tracking sperm whales and jumbo squid

s exactly what they’re doing down there," he said.

"We also know relatively little about the behavior of jumbo squid in the wild," Gilly added. "For example, it was only a couple of years ago that we discovered an area in the central Gulf of California where spawning and mating of these animals probably take place."

Electronic tags

The MEPS study was conducted in fall 2004 near Santa Rosalia, a coastal Baja California town that is the center of Mexico’s jumbo squid fishery.

During six days at sea, the research team identified 74 individual sperm whales in a 27-square-mile area. To locate whales, researchers towed an array of hydrophones from the back of a boat and listened for the animals?distinct clicking vocalizations. When they finally encountered a whale, the scientists carefully approached the animal and attached an electronic depth recorder to its back. Later, whenever the tagged whale surfaced for a breath of air, the device would transmit recorded data about the animal’s movements to an orbiting satellite.

Jumbo squid also were abundant, with numerous small fishing boats hauling in a total catch of about 10,000 squid per night throughout the six-day study. Captured squid were outfitted with a pop-up archival transmitting tag, which periodically sampled the animal’s depth. Unlike the instruments used on whales, the squid tags were designed to detach at a predetermined time, then float to the surface and transmit stored data to the satellite.

Results

During the study, electronic tags were placed on five whales and three jumbo squid swimming nearby. Analysis of the tagging data showed that the whales were traveling up to 60 miles a day within a relatively small area, suggesting that they had found an abundant supply of food.

The tagged predators and prey must have crossed paths at some time during the experiment, Gilly noted. "Based on the locations of where the squid
'"/>

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:10/14/2014)... shows SIRT6—a protein known to inhibit the growth ... skin cancers by turning on an enzyme that increases ... Previously considered protective, SIRT6 is part of a family ... stability and prevent some of the genetic flaws associated ... lead to cancer. This study, in the journal,s October ...
(Date:10/14/2014)... to produce enough food to feed the world in ... of the United Nations predicts that food production must ... a growing global population, and plants are one major ... Plants—grains, cereals, fruits, vegetables, and more—feed humans directly and ... into our knowledge of how plants work to develop ...
(Date:10/14/2014)... LA JOLLA, CA – October 14, 2014 – Scientists ... $6.6 million from the National Institutes of Health (NIH) ... most prevalent virus-induced hemorrhagic fever disease in Africa. The ... disease and why some patients die, while others survive ... researchers to understand the basic mechanism of how Lassa ...
Breaking Biology News(10 mins):Two-faced gene: SIRT6 prevents some cancers but promotes sun-induced skin cancer 2Building a bridge from basic botany to applied agriculture 2Building a bridge from basic botany to applied agriculture 3Scripps Research Institute team receives $6.6 million to investigate deadly Lassa virus 2
... Bowman Design Group, an integrated marketing and communications design ... the first and only company in the United States ... exhibition and events industry association. Third party verification of ... or exceeded goals set for nine criteria including greenhouse ...
... Greg Asner has been elected to the National Academy ... and 21 foreign associates from 14 countries elected "in ... research." The total number of active members now stands ... the Department of Global Ecology,s first staff scientist. Since ...
... inventory plots in the Northeast and Midwestern United States contain ... Service study found. The study across two dozen states from ... on the landscape where invasive plants might take root. ... annual forest inventory had at least one introduced species, but ...
Cached Biology News:Bowman Design Group is first US company awarded German FAMAB 'Sustainable Company' certification 2Carnegie's Greg Asner elected to National Academy of Sciences 2In the Northeast, forests with entirely native flora are not the norm 2
(Date:10/20/2014)... 20, 2014 Mapp Biopharmaceutical,s valiant effort ... therapeutic to fight the Ebola outbreak will make ... the production of pharmaceuticals can be, according to ... that while some may be taken aback by ... with industry knowledge are well aware of the ...
(Date:10/20/2014)... 2014 Asterias Biotherapeutics, Inc. (NYSE MKT: ... a Notice of Grant Award (NGA) with the ... 1, 2014.  The NGA provides for the immediate ... of additional grant funds pursuant to the previously ... development of Asterias, product, AST-OPC1. The grant provides ...
(Date:10/20/2014)... , October 20, 2014 , ... (GI) disorders and the delivery of care has revealed ... and worrying inequalities in the provision of healthcare services ... was commissioned by United European Gastroenterology (UEG), have been ... and public awareness of the burden of GI disorders ...
(Date:10/20/2014)... , Oct. 20, 2014 PureTech ... company tackling big healthcare problems, announced today the ... round, with participation from Invesco Perpetual, a $120 ... used to drive PureTech,s existing pipeline forward and ... "PureTech has the scientific creativity to really go ...
Breaking Biology Technology:Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 2Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 3Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 2Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 3Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 4Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 2Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 4Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 5PureTech Announces Expansion with Oversubscribed $55M Funding Round 2PureTech Announces Expansion with Oversubscribed $55M Funding Round 3PureTech Announces Expansion with Oversubscribed $55M Funding Round 4PureTech Announces Expansion with Oversubscribed $55M Funding Round 5PureTech Announces Expansion with Oversubscribed $55M Funding Round 6
... /PRNewswire-FirstCall/ - Victhom Human Bionics Inc., "Victhom" (TSX:VHB), ... CE Mark approval for its Neurostep(TM) System, the ... used on peripheral nerves. CE Mark represents regulatory ... in any of the Member States of the ...
... NOVATO, Calif., Feb. 3 BioMarin Pharmaceutical Inc. (Nasdaq: ... National Health Surveillance Agency, has granted BioMarin marketing approval ... Mucopolysaccharidosis VI (MPS VI)."We are very pleased to receive ... largest known number of affected MPS VI patients in ...
... 3 Poniard,Pharmaceuticals, Inc. (Nasdaq: PARD ), ... that Jerry McMahon, Ph.D.,chairman and CEO, will present at ... Tuesday, February 10, at 10 a.m. Eastern Time at ... Dr. McMahon will provide a corporate overview, including a ...
Cached Biology Technology:Victhom Human Bionics Receives CE Mark for the Neurostep(TM) System, the World's First Fully Implantable Closed-Loop Neuromodulation Therapy for Treatment of Foot Drop 2Victhom Human Bionics Receives CE Mark for the Neurostep(TM) System, the World's First Fully Implantable Closed-Loop Neuromodulation Therapy for Treatment of Foot Drop 3Naglazyme Approved by Brazil's National Health Surveillance Agency 2Naglazyme Approved by Brazil's National Health Surveillance Agency 3Naglazyme Approved by Brazil's National Health Surveillance Agency 4Poniard Pharmaceuticals to Present at the BIO CEO & Investor Conference 2