Navigation Links
Warming temperatures cause aquatic animals to shrink the most
Date:11/5/2012

Warmer temperatures cause greater reduction in the adult sizes of aquatic animals than in land-dwellers in a new study by scientists from Queen Mary, University of London and the University of Liverpool.

The research published today (Mon 5 Nov) in Proceedings of the National Academy of Sciences (PNAS) shows that the body size of marine and freshwater species are affected disproportionately by warmer temperatures. This could have implications for aquatic food webs and the production of food by aquaculture.

The researchers compared the extent to which the adult size of 169 terrestrial, freshwater, and marine species responded to different non-harmful temperatures, in the largest study of its kind.

Summarising the results, co-author Dr Andrew Hirst from Queen Mary's School of Biological and Chemical Sciences, said:

"Aquatic animals shrink 10 times more than land-dwellers in species the size of large insects or small fish. While animals in water decrease in size by 5 percent for every degree Celsius of warming, similarly sized species on land shrink, on average, by just half a percent."

The research also demonstrates that the most likely cause of this difference in size is due to the much lower availability of oxygen in water than in air. Warming increases the need for oxygen by organisms on land and in water, however aquatic species have a much harder job meeting this increased demand.

Co-author Dr David Atkinson of the University of Liverpool explains:

"To satisfy increased demands for oxygen at higher temperatures, aquatic species have fewer options. Reducing the size at which they mature is their way of balancing oxygen supply and demand."

Lead author Dr Jack Forster also from Queen Mary's School of Biological and Chemical Sciences adds: "Given that fish and other aquatic organisms provide 3 billion people with at least 15 percent of their animal protein intake, our work highlights the importance of understanding how warming in the future will affect ocean, lake and river dwelling species."


'/>"/>

Contact: Neha Okhandiar
n.okhandiar@qmul.ac.uk
Queen Mary, University of London
Source:Eurekalert

Related biology news :

1. After long-ago mass extinction, global warming hindered species recovery
2. Dusts warming counters half of its cooling effect
3. Rice agriculture accelerates global warming, new research finds
4. New NIST screening method identifies 1,200 candidate refrigerants to combat global warming
5. Increase in metal concentrations in Rocky Mountain watershed tied to warming temperatures
6. Warming causes more extreme shifts of the Southern Hemispheres largest rain band
7. A new global warming culprit: Dam drawdowns
8. Research links extreme summer heat events to global warming
9. Global warming harms lakes
10. No matter the drilling method, natural gas is a much-needed tool to battle global warming
11. Significant sea-level rise in a 2-degree warming world
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/22/2016)... WASHINGTON , June 22, 2016 On ... highly-anticipated call to industry to share solutions for the ... by U.S. Customs and Border Protection (CBP), explains that ... nationals are departing the United States ... criminals, and to defeat imposters. Logo - ...
(Date:6/9/2016)... attendance control systems is proud to announce the introduction of fingerprint attendance control software, ... employees are actually signing in, and to even control the opening of doors. ... ... ... Photo - http://photos.prnewswire.com/prnh/20160609/377487 ...
(Date:6/2/2016)... --  The Weather Company , an IBM Business (NYSE: ... in which consumers will be able to interact with IBM ... voice or text and receive relevant information about the product ... have long sought an advertising solution that can create a ... and valuable; and can scale across millions of interactions and ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... PHILADELPHIA , June 27, 2016  Liquid ... today announced the funding of a Sponsored Research ... study circulating tumor cells (CTCs) from cancer patients.  ... changes in CTC levels correlate with clinical outcomes ... therapies. These data will then be employed to ...
(Date:6/24/2016)... June 24, 2016  Regular discussions on a range of ... between the two entities said Poloz. Speaking at ... Ottawa , he pointed to the country,s inflation target, ... government. "In certain ... institutions have common economic goals, why not sit down and ...
(Date:6/24/2016)... ... , ... While the majority of commercial spectrophotometers and fluorometers use the z-dimension ... are higher end machines that use the more unconventional z-dimension of 20mm. Z-dimension ... bottom of the cuvette holder. , FireflySci has developed several Agilent flow cell ...
(Date:6/23/2016)... ... June 23, 2016 , ... Mosio, a leader in clinical ... Patient Recruitment and Retention Tips.” Partnering with experienced clinical research professionals, Mosio revisits ... tips, tools, and strategies for clinical researchers. , “The landscape of how patients ...
Breaking Biology Technology: