Navigation Links
Eating right key to survival of whales and dolphins: UBC research
Date:11/21/2012

In the marine world, high-energy prey make for high-energy predators. And to survive, such marine predators need to sustain the right kind of high-energy diet. Not just any prey will do, suggests a new study by researchers from the University of British Columbia and University of La Rochelle, in France.

Published today in the online journal PLOS ONE, the study is the first to show that the survival of whales and dolphins depends on the quality of their diets and this plays an important role in conservation.

"The conventional wisdom is that marine mammals can eat anything," says co-author Andrew Trites, a marine mammal expert at UBC. "However, we found that some species of whales and dolphins require calorie rich diets to survive while others are built to live off low quality preyand it has nothing to do with how big they are."

The team compared the diets of 11 species of whales, dolphins and porpoises in the Northeast Atlantic Ocean, and found differences in the qualities of prey consumed that could not be explained by the different body sizes of the predators. The key to understanding the differences in their diets was to look at their muscle performance.

"High energy prey tend to be more mobile, and require their predators to spend more energy to catch them," says Trites. "The two have co-evolved."

Jrme Spitz, the study's first author, says the research will help better assess the impact of resource changes to marine mammals.

"Species with high energy needs are more sensitive to depletion of their primary prey," says Spitz, a post-doctoral fellow at ULR in France, who completed the research while a visiting scholar at UBC. "It is no longer a question of how much food do whales and dolphins need, but whether they are able to get the right kinds of food to survive."


'/>"/>
Contact: Andrew Trites
a.trites@fisheries.ubc.ca
604-822-8182
University of British Columbia
Source:Eurekalert

Page: 1

Related biology news :

1. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
2. Strong scientific evidence that eating berries benefits the brain
3. Nanotherapy: Treating deadly brain tumors by delivering big radiation with tiny tools
4. Beating famine: Sustainable food security through land regeneration in a changing climate
5. New hope for treating Alzheimers Disease: A role for the FKBP52 protein
6. Discovery offers insight into treating viral stomach flu
7. Binge eating may lead to addiction-like behaviors
8. Ultrasound idea: Prototype NIST/CU bioreactor evaluates engineered tissue while creating it
9. A new candidate pathway for treating visceral obesity
10. Creating energy from light and air - new research on biofuel cells
11. Weed-eating fish help protect jobs, livelihoods
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/28/2017)... , March 28, 2017 The ... Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video Analytics, ... Region - Global Forecast to 2022", published by MarketsandMarkets, ... 2016 and is projected to reach USD 75.64 Billion ... and 2022. The base year considered for the study ...
(Date:3/24/2017)... 24, 2017 The Controller General of Immigration from ... Abdulla Algeen have received the prestigious international IAIR Award for the ... Continue Reading ... ... Controller Abdulla Algeen (small picture on the right) have received the IAIR ...
(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by Technology (Touch-based ... to 2022", published by MarketsandMarkets, the market is expected to be worth USD ... 2022. Continue Reading ... ... ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... and LAGUNA HILLS, Calif. , Oct. ... Cancer Research, London (ICR) and University ... SKY92, SkylineDx,s prognostic tool to risk-stratify patients with multiple myeloma ... MUK nine . The University of Leeds ... partly funded by Myeloma UK, and ICR will perform the ...
(Date:10/10/2017)... ... 2017 , ... San Diego-based team building and cooking events company, Lajollacooks4u, has ... The bold new look is part of a transformation to increase awareness, appeal to ... period. , It will also expand its service offering from its signature gourmet cooking ...
(Date:10/10/2017)... 10, 2017 International research firm Parks Associates announced ... at the TMA 2017 Annual Meeting , October 11 in ... residential home security market and how smart safety and security products impact ... Parks Associates: Smart Home ... "The residential security market has ...
(Date:10/9/2017)... DIEGO , Oct. 9, 2017  BioTech ... biological mechanism by which its ProCell stem cell ... critical limb ischemia.  The Company, demonstrated that treatment ... amount of limbs saved as compared to standard ... the molecule HGF resulted in reduction of therapeutic ...
Breaking Biology Technology: