Navigation Links
Decade-long study of Pacific predators shows importance of biological 'hotspots'
Date:6/22/2011

NEWPORT, Ore. An unprecedented decade-long study of apex predators in the Pacific Ocean found a wider range of distribution among some species than previously thought, unknown relationships between other species, and the importance of biological "hotspots" to the survival of most of these sea creatures.

The field program, dubbed Tagging of Pacific Predators or TOPP looked at 23 species from 2000-09 and included researchers from multiple institutions.

Results of the study are being published this week in the journal Nature.

"One thing that quickly became apparent is that there are many similarities among top predators in the California Current System," said Bruce Mate, director of the Marine Mammal Institute at Oregon State University and co-author on the study. "There is a strong overlap in territory, for example, between blue whales and tuna. Blue whales eat krill; the tuna eat fish that eat the krill.

"But the krill, and the ocean conditions that promote its abundance, are key to both species," added Mate, who directed the cetacean portion of the TOPP study. "When there are hotspots of krill or other food, the apex predators need to find them."

Most of these hotspots result from upwelling, or the fertilization of surface waters with nutrient-rich deeper water as a result of wind-driven mixing. One such biological hotspot occurs just west of Santa Barbara, Calif., where the wind comes around Point Conception and triggers strong upwelling.

"When the winds there died, we watched whales eat literally all of the available food in three days, and then they just took off," Mate said. "Most of them moved to the Farallon Islands near San Francisco, which is another productive feeding area. Blue whales likely know these hotspots from experience. Instead of waiting for upwelling to renew the krill population, they'll travel 400 miles in three days to find a new food source."

The study also found, h
'/>"/>

Contact: Bruce Mate
Bruce.Mate@oregonstate.edu
541-867-0202
Oregon State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Drought drives decade-long decline in plant growth
2. Study: Wild Cuban crocodiles hybridize with American crocs
3. Gatekeepers: Penn study discovers how microbes make it past tight spaces between cells
4. GW researchers receive award from NCI to study cancer from a neglected tropical disease
5. Study finds golden algae responsible for killing millions of fish less toxic in sunlight
6. Study reveals important aspects of signaling across cell membranes in plants
7. Study hints at antibiotic overuse in home-care patients
8. E. coli bacteria more likely to develop resistance after exposure to low levels of antibiotics, reports a study in Microbial Drug Resistance
9. New study supports Darwins hypothesis on competition between species
10. Social scientists study impact of human adult stem cell research
11. Scripps Research scientist wins $1.9 million grant to study malaria
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... . , Animals ... such as exposure to predators. Researchers from the Max ... study on different populations of great tits that risk-taking ... High metabolic rates and low temperatures were associated with ... more likely to approach potential predators. , The readiness ...
(Date:9/30/2014)... who suffer from asthma may think there,s not a ... properly taking medications and avoiding allergic triggers. , ... of Allergy, Asthma and Immunology , the scientific publication ... (ACAAI), asthma sufferers can learn lessons about managing their ... the Annals article improved her asthma once she and ...
(Date:9/29/2014)... confirms that the exposure to tar tended to be ... cigarettes. Similarly, exposure to nicotine tended to be ... of cigarette in several countries around the world. Previous ... chemicals in the smoke of these cigarettes are lower ... of chemicals in the smoke are not necessarily linked ...
Breaking Biology News(10 mins):Risky metabolism 2Asthma symptoms kicking up? Check your exposure to air pollution 2Slim cigarette smokers not exposed to more harmful chemicals 2
... sinister about epilepsy: the disease affects the very core ... lead to seizures throughout the body or in parts of ... possible. The causes are still only partially understood but ... or metabolic diseases have been implicated. Epilepsy is not ...
... February 1, 2013 Poor impulse control contributes ... rewarding substances, like food, alcohol, and other drugs. ... FDA-approved medications for alcoholism, like naltrexone (Revia) and ... by curbing cravings and creating unpleasant reactions to ...
... levels of greenhouse gases, particularly carbon dioxide (CO2), ... fuels, deforestation, cultivation of grasslands, drainage of the ... shifts in climate patterns have led scientists to ... and to develop methods to evaluate how changes ...
Cached Biology News:Cats and humans suffer from similar forms of epilepsy 2If you are impulsive, take modafinil and count to 10 2New protocol recommendations for measuring soil organic carbon sequestration 2New protocol recommendations for measuring soil organic carbon sequestration 3New protocol recommendations for measuring soil organic carbon sequestration 4
(Date:9/30/2014)... (PRWEB) September 30, 2014 The custom ... ISPE Boston Product Show 2014. The Boston Area Chapter ... the 23rd annual, day-long event for Wed., Oct. 1 ... promises to be the largest in ISPE Boston’s long ... upward of 3,000 attendees expected. , HOLLOWAY AMERICA ...
(Date:9/30/2014)... 30, 2014 UFP Technologies, a ... packaging has recently introduced a custom insulated shipping ... . The new insulated shipper solves the issue ... process. UFP Technologies’ BioShell is a universal storage ... storage, handling and shipping. The insulated shipper keeps ...
(Date:9/29/2014)... Medical imaging is at the forefront of diagnostics ... imaging), CT (computerized tomography), scanning, and NMR (nuclear ... decades. However, persisting problems of image resolution and ... nature of living tissue. A solution is hyperpolarization, ... can increase imaging quality by following the distribution ...
(Date:9/29/2014)... diseases and biodiversity loss requires evolutionary thinking, argues ... Express that was co-authored by Bruce Tabashnik ... and Life Sciences. , For the first time, ... progress in addressing a broad set of challenges ... that consider evolutionary histories and the likelihood of ...
Breaking Biology Technology:HOLLOWAY AMERICA to Exhibit at ISPE Boston Product Show 2014 2HOLLOWAY AMERICA to Exhibit at ISPE Boston Product Show 2014 3UFP Technologies Introduces Insulated Shipping Container For Bulk Drug Transportation 2UFP Technologies Introduces Insulated Shipping Container For Bulk Drug Transportation 3A safer approach for diagnostic medical imaging 2A safer approach for diagnostic medical imaging 3Evolutionary biology: It's not just for textbooks anymore 2Evolutionary biology: It's not just for textbooks anymore 3
... May 4, 2011 Bacterin International Holdings, Inc. ("Bacterin") (NYSE ... graft material, today announced that its chairman and CEO, Guy ... Annual Equity Conference at the Hard Rock Hotel in Hollywood, ... At the time of the presentation, a live ...
... Neb., May 4, 2011 Transgenomic, Inc. (OTC/BB: ... Brugada Syndrome (BrS) test panel at the 2011 Heart Rhythm ... of 9 genes and broadens the test indication to include ... "The addition of two newly identified J-wave syndrome genes, ...
... May 4, 2011 NxStage Medical, Inc. (Nasdaq: ... products, today reported financial results for the first quarter ... above the top end of its guidance range. ... quarter of 2011 increased 25 percent to a record ...
Cached Biology Technology:Bacterin International to Present at Noble Financial Capital Markets' Seventh Annual Equity Conference on May 16, 2011 2Transgenomic, Inc. Enhances FAMILION® Genetic Test Offerings 2Transgenomic, Inc. Enhances FAMILION® Genetic Test Offerings 3Transgenomic, Inc. Enhances FAMILION® Genetic Test Offerings 4NxStage® Reports Record Revenue for the First Quarter of Fiscal 2011 2NxStage® Reports Record Revenue for the First Quarter of Fiscal 2011 3NxStage® Reports Record Revenue for the First Quarter of Fiscal 2011 4NxStage® Reports Record Revenue for the First Quarter of Fiscal 2011 5NxStage® Reports Record Revenue for the First Quarter of Fiscal 2011 6NxStage® Reports Record Revenue for the First Quarter of Fiscal 2011 7
Recorder REC-111 single-channel, 1. Category: Chromatography Systems & Accessories, Systems....
For the quantitative determination of cyclic AMP (cAMP) concentrations in cell culture supernates, serum, plasma, saliva, urine and cell lysates....
... Wide Range CRYETTE WR Cryoscope for molecular weight determinations for petroleum-based applications. Multiple solvents ... cyclohexanol, sulfolane. ... ... ...
... For the ultimate in utility and ... to meet the needs of the researcher. ... interior dimensions or as sheet material that ... enclosures. These isolators are autoclavable and non-cytotoxic ...
Biology Products: